What Pellet Stove Piping Kit Do I Need to Use My Existing Chimney
Chimney Pipage Buying Guide
Trying to figure out what kind of piping y'all need to install your fireplace, stove, or whatsoever other hearth apparatus tin can be an intimidating task. In an effort to simplify things for you, we will look at several aspects of the most common types of chimney piping and explain their uses and applications.
What we program to do is help you lot, the consumer, get a bit more familiar with chimney pipe. Outset and foremost, in any installation, you'll want to begin past consulting the owner's manual for your hearth apparatus. Different fireplaces and stoves have varying venting requirements. These requirements involve more than than just the kind of pipe you need; it as well includes specific information regarding clearances and offsets that must be followed for safe and proper installation. If anything in your manual is unclear or confusing, contact the manufacturer of your apparatus directly for clarification.
Only, if you need further help or simply can't get a hold of your manufacturer, feel complimentary to requite us a phone call at 800.203.1642 . Our NFI certified specialists volition be happy to assist y'all in any way that they tin.
What is Course A Chimney Piping?
Course A chimney pipe has many names, often referred to every bit double-wall chimney pipe, triple-wall chimney pipe, all-fuel piping, or insulated chimney pipe. Class A pipe is used to vent high-temperature frazzle released from wood, coal, and oil-burning appliances such equally fireplaces, stoves, boilers, and furnaces.
Non every venting arrangement requires a Class A pipe, simply it is absolutely necessary for use with all wood-called-for fireplaces and stoves.
Class A chimney pipe is UL-listed, which permits its apply with a range of unlike vent pipe manufactured by other fabricators and an even wider diverseness of fireplaces, stoves, inserts, and furnaces. However, information technology is important to annotation that you should never mix-and-friction match different brands of Grade A chimney pipe within one chimney system unless specifically allowed by the manufacturer. The unlike brands of pipe are all distinctly engineered and must be used every bit a consummate system from outset to end.
If you are looking to extend or redesign your current chimney system, you lot need to know the make and model of your existing Class A pipe and purchase the same type, if possible. Unfortunately, if your existing make and model of pipe is a discontinued or obsolete brand, you will probable need to rebuild your chimney organisation from scratch. Building codes prohibit the use of any adapters not canonical past the manufacturer. These adapters are very rare and are usually simply offered past a manufacturer to link a very like discontinued piping system to a currently offered organization.
There are two types of Course A chimney pipe:
- Solid-packed chimney — These pipes have smaller inner diameters (usually ranging from 5 inches to 8 inches) that have some insulation, either double-wall (like Simpson DuraVent DuraTech pipage) or triple wall (like Simpson DuraVent DuraPlus pipe). These pipes comprise fiberglass or ceramic insulation to stay cooler on the outside and must maintain a 2-inch clearance to combustibles.
- Air-cooled chimney — These pipes have larger inner diameters (usually ranging from 8 inches to 24 inches) with no insulation. An example of this kind of Course A pipe is the IHP chimney pipe that is required for use with Superior and Astria manufactured fireplaces. As the name implies, these pipes rely on the air circulating within them to keep the outer wall libation and must also maintain a one or 2-inch clearance to combustibles.
When using Grade A chimney pipe, it is important to programme or route the vent run wisely to minimize costs and maximize your savings. Grade A pipe is usually manufactured with either a stainless steel or galvanized (or galvalume) outer wall. When running Form A pipage within a masonry chimney, a chase, an attic, or whatever enclosure inside the habitation, it is economically wise to utilise galvanized pipage. It is highly recommended, if possible, to install your chimney in the interior of your dwelling. Having your chimney system exposed to the outdoors brings with information technology the take chances of a "cold hearth syndrome," which tin can hinder drafting and produce more creosote.
The need for stainless steel merely arises when your piping volition be exposed to the elements. If the galvanized pipe is exposed, information technology is susceptible to eventual rust and corrosion. This is especially truthful in coastal areas. If you must use galvanized pipage exterior, we urge yous to paint your pipe with a high temperature, rust-resistant paint. Just remember, galvanized piping must be cleaned and prepped prior to painting to remove any residual machine oil or dust from the manufacturing process.
What is Straight Vent Pipe?
Directly-vent pipe is made specifically for a direct vent gas appliance. The term "direct-vent" refers to an appliance that uses simply outside air for combustion and vents all exhaust directly back outside. The appliance itself is sealed off from the room by a glass door that should never be opened while the unit is in use.
Straight-vent units are amongst the virtually popular with consumers because of their efficiency and ease of installation compared to traditional woods-called-for applications.
In that location are two types of direct vent pipe systems:
- Coaxial pipage — Consisting of a piping-within-a-pipe configuration, a coaxial system utilizes a smaller inner pipe that is fixed inside a larger outer pipe. The inner pipe, separated from the outer pipe past spacers, vents and removes all combustion by-products and exhaust out of the apparatus and out of the habitation. The infinite between the two pipes brings in fresh air from outside into the appliance for combustion. Coaxial pipe may be rigid or flexible.
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- coaxial vent pipage
- Colinear pipe — This is a system with ii split up pipes, 1 for combustion air and the other for frazzle. These kinds of pipes are usually flexible and typically apply existing masonry structures to run the piping.
-
- co linear direct vent pipe
Clearances for directly vent pipe may vary, and these clearances will be specified by the manufacturer of your directly-vent appliance. The general rule-of-thumb, however, is a 1-inch clearance all the way around for vertical vent runs. And if running the pipe horizontally, it must maintain a 3-inch clearance for the top half of the pipage and a ane-inch clearance for the bottom half of the pipe.
Direct vent chimney systems are specialized. Every component, including pipage, elbows, firestops, roof supports, termination caps, and etc. is specifically made for venting a direct-vent apparatus. You will never convert direct vent pipe to Grade A chimney pipe, and you volition never convert a stove pipe to a direct vent pipe. In some circumstances, it is possible to apply specialized adaptors to convert Grade A chimney pipe into a direct vent organization.
Different stove pipe, the use of roof supports and thimbles with direct vent systems do not serve as a conversion bespeak to adhere Class A chimney piping. These components are simply used to pass direct vent pipage safely through a ceiling or a wall. The owner's manual of every direct vent fireplace, stove, or insert will specify which brands of directly vent pipe are approved for use with that unit of measurement.
A unique and convenient attribute of direct vent chimney systems is the power to vent and terminate in various ways. A directly vent arrangement can be terminated either horizontally or vertically, and in some cases, it may simply take a few inches of pipe direct out the back of a directly vent appliance to the outside of your home. Be sure to follow your manufacturer'southward guidelines for maximum horizontal run, vertical rise, etc. when designing your direct vent chimney arrangement. The specifications for venting for each appliance volition be spelled out in your possessor'southward manual.
Straight vent units may be referred to equally "meridian vent," "rear vent," or "slant-back." These titles refer to the position of the flue neckband on the appliance. "Top vent" and "rear vent" are self-explanatory, and "slant-back" refers to an appliance with a flue neckband coming out of the unit of measurement at a 45-degree bending, with like shooting fish in a barrel adaptability for vertical or horizontal venting with the use of a 45-caste elbow.
Many direct vent appliance manufacturers volition offer specific horizontal or vertical venting kits for detail units. When looking into purchasing these kits, be certain to notice out how much pipe you would be getting and if that would be enough to complete your organisation.
What is Stove Pipe?
Stove pipe, also called a chimney connector, is not the same every bit a Course A chimney pipe, although these two are oft confused with each other. Stove pipe is used for venting wood called-for stoves and is simply for use inside the habitation, or more than specifically, within the room where the stove is installed. One time the venting reaches the wall or ceiling, it must be converted to Course A chimney pipe. Depending on which kind of stove pipe yous use — unmarried-wall or double-wall — you lot must also account for proper clearances from combustibles. For instance, a unmarried wall stove pipe requires 18 inches of clearance from ceilings or walls. Double wall stove piping, on the other hand, requires merely 8 inches of clearance from the ceiling and six inches from a wall. Once these clearances are met, y'all must convert your stove piping to Course A chimney piping for proper venting of your stove.
Many stove owners from years past may be surprised to know that stove pipage is never permitted to go through a ceiling or a wall, no thing how much clearance you tin create. Therefore, it is never condom to apply only stove pipe for venting. This is simply a thing of the manner these pipes are engineered.
If used outside, stove pipe will be unable to maintain high flue temperatures, causing potential creosote buildup and increased gamble of a chimney fire. Form A chimney pipe requires only ii inches of clearance to combustibles because it is made to handle the highest temperatures for exhaust. This is why yous must convert from stove pipe to class A chimney pipage when venting your forest burning stove.
How To Install Stove Pipage Into Chimney
There are a couple of different means to make the conversion from a woods stove pipe to a chimney pipe for proper venting. These include through-the-ceiling or through-the-wall venting methods. Each installation calls for different components, depending on the transition bespeak between the stove pipe and Class A chimney pipe.
Through-the-ceiling — For venting systems that run vertically through a ceiling, you must have a ceiling support box or round ceiling support piece to employ as your transition point from the stove pipe to the Class A chimney pipe. The stove pipe will connect to the bottom, and the Form A chimney piping will attach to the other side, either running through the ceiling back up box itself or an attic insulation shield (in the example of round ceiling support). From here, chimney pipage will laissez passer through a pitched roof by use of roof flashing, or it can be built into a framed wooden hunt, which must be topped off with a fabricated chase top flashing.
Through-the-wall — For venting systems that run horizontally through a wall, you lot must have a thimble. A thimble is designed to allow Class A chimney pipe to pass through the wall, encounter the room where your appliance is installed, and so connect to the stove pipe. Depending on what kind of stove pipe you employ, the Class A chimney pipage must come into the room half-dozen inches (for connecting to double-wall stove pipe) or 18 inches (for connecting to single-wall stove piping).
Most forest burning stoves are top-vent models, meaning the flue collar will be on tiptop of the unit. For any horizontal, through-the-wall venting system, you must have at least 12 inches of vertical ascent from the height of the stove (not including the flue collar itself or any elbows) before connecting a 90-degree elbow piece to turn toward the wall.
Some older woods burning stoves are rear vent models. These models require the use of a tee for cleanout purposes at the flue collar. Similar top-vent models, they require a minimum of 12 inches of vertical rise before directing the vent pipe horizontally. Delight run into your owner'southward transmission for more details.
There is ane chief difference between wood-burning and direct-vent stoves. Some direct-vent stoves are rear-vent models and able to vent horizontally from the flue neckband to the wall. Other straight-vent stoves are "slant-dorsum" models, meaning the flue collar is positioned at a 45-degree bending on the unit of measurement, assuasive some versatility for vertical or horizontal venting without having to use a 90-degree elbow. For more information on venting direct-vent stoves, please run across the department on direct-vent pipe.
What is Type B Gas Pipe?
Type B gas pipe, likewise called "B-Vent" or "Natural Vent," is prefabricated, double-wall metal pipe used to vent gas appliances listed for use with Type B gas vent. Type B pipage is condign less prevalent for venting hearth products, but many furnaces and water heaters still use it.
The biggest reason for the declining employ of Type B vent pipes for hearth products is their lack of efficiency, specially compared to direct vent and vent-free units. However, there is still a market for B-Vent pipage for fireplaces considering of its economic viability, which makes it particularly appealing for contractors and builders. Another reward of Type B is that it is not typically susceptible to excessive draft problems, due in office to the draft hood that draws in excess air to moderate strong draft. About B-Vent pipe has a one-inch clearance to combustibles.
Type B pipe is never suitable to exist used with wood-burning or coal-called-for appliances. Also, information technology should never be used as a free-standing exhaust pipe for high-temperature venting.
What is Pellet Vent Pipe?
Pellet vent pipe is used to vent pellet-burning or corn-burning stoves. These pipes are smaller in diameter than any other vent pipage, usually with a bore of 3 or iv inches. Double wall pellet pipe requires a one-inch clearance to combustibles. And unlike stove pipe, pellet vent pipe does not require Class A chimney pipe for installation.
In other words, you lot are not required to catechumen pellet vent pipe to Class A chimney piping when passing through a wall or a ceiling. Pellet pipe is used all the mode from the pellet-burning or corn-burning appliance to the termination point.
Similar to straight-vent systems, pellet venting tin exist terminated either vertically or horizontally. If terminating horizontally, the cap must be at least 6 inches from the outer wall of your abode. If terminating vertically, the cap must be at least 12 inches above the roof.
If you are venting for a pellet-called-for insert, however, your appliance will require a flex pipe to bypass the fume shelf. At this point you would be able to convert to rigid chimney or pellet vent pipe with an adaptor.
Types of Chimney Termination Caps
Class A Chimney Caps
Class A chimney pipes have their own specialized caps that fit correct on top of the pipe at the point of termination to a higher place the roofline, commonly referred to equally chimney caps. When terminating a Class A system, y'all must follow what is known equally the "ten-3-ii" rule or the "ten-foot, 2-foot" rule.
This rule is explained by the Natural Fire Protection Clan (NFPA) as follows:
"A chimney for residential-type or depression-heat gas utilization equipment appliances shall extend at least three ft (0.9 k) above the highest point where it passes through a roof of a building and at to the lowest degree 2 ft (0.6 grand) higher than whatsoever portion of a building within a horizontal distance of 10 ft (three m)" (NFPA ANSI Z223.1, Section 10.five.ii.one).
Delight note that this code must be met with the 10-foot radius, clear of any obstacle at the top of your piping before your cap is installed. This rule is in place to ensure proper typhoon for your unit. If yous take whatever questions virtually whether your system meets code with regard to this requirement, feel gratis to call or email united states, and we volition be happy to assist.
Straight Vent and Pellet Vent Termination Caps
- Vertical Termination Caps: A vertical termination cap is for apply, patently, when terminating vent pipes vertically through a roof. Depending on which manufacturer of pipage y'all use, at that place may be some specialization options similar a loftier-current of air cap (to protect against wind), a low-profile cap (to protect against rain), or an extended vertical cap (to protect against extremely common cold climates). And depending on your roof's pitch, you may demand anywhere from 1 to v feet of pipe extending past your roofline. Every bit e'er, check your manufacturer'southward guidelines for proper venting and termination of your unit of measurement. Some direct-vent caps are made of aluminum while others are made of stainless steel, which is preferable for longevity and reliability.
- Horizontal Termination Caps: One singled-out difference with direct-vent systems is the option to cease horizontally on an outside wall. Equally with the vertical caps, there may exist a few specialized options, including round or square caps. Exist sure to check your manufacturer's guidelines for proper clearances for horizontal termination of your unit. These guidelines volition specify the advisable distance you lot'll need from your wall, windows, doors and other parts of the home. Also, some appliances may call for a minimum amount of vent rising earlier horizontal termination is permitted.
- Snorkel: Patented by Simpson DuraVent, this component is for horizontal, through-the-wall terminations when a vertical rise is required to run across minimum height requirements. The near common employ of this term would be installations in basements and situations where your apparatus is installed below grade.
Blazon B Caps
Type B systems can involve a multitude of distinct piping components, and the termination point is no different. B-Vent systems can only be terminated vertically, with several dissimilar kinds of caps bachelor depending on your manufacturer'south guidelines and requirements. See the chart beneath for aid with measurements.
Other Components for Chimney Pipe Installation
In addition to your piping and chimney/termination cap, here are several chimney components you may demand for your installation.
- Anchor Pate/Flue Adaptor: The vast majority of fireplaces, stoves, and inserts need an ballast plate (usually for cypher clearance and masonry fireplaces) or a flue adaptor (usually for stoves and direct vent fireplaces) to use a particular kind of chimney system. For example, if you purchase a zero clearance wood-burning fireplace with an eight" flue and desire to use the Simpson DuraVent DuraTech chimney pipage, yous would demand to employ the DuraVent DVL 6-Inch Double-Wall Stovepipe to Stove Flue Adaptor.
- Elbow/Elbow Kit: Elbows are ofttimes needed in chimney systems for a variety of reasons. Unless you lot are able to vent your chimney organization vertically or horizontally without whatsoever obstructions blocking your path, you are going to need an elbow of some kind. All manufacturers specify the offset parameters for each hearth appliance in the owner'southward manual. So you'll want to consult your manual for this specific information regarding your unit.
While many stove piping and direct vent piping systems utilize ninety-degree and 45-degree elbows, Class A chimney pipage systems exercise not allow for more than a 30-caste elbow. In fact, y'all'll need two elbows if offsetting Grade A chimney pipe — an elbow to start the kickoff and some other 1 to end the offset. For this reason, most Grade A chimney manufacturers only sell elbows in kits that have ii elbows and an elbow strap for support. Too, only a limited amount of start is permitted (normally no more than but over 3 feet or less) between the two elbows. Using the two elbows to offset Class A chimney pipes optimizes your chimney's performance and protects confronting drafting and menstruum problems.
When dealing with offsets with stove pipe and direct vent pipe, y'all can offset to go around an obstacle for upwardly to nearly 60 inches for stove pipage and near forty inches for the direct vent piping. Pellet Vent pipe, yet, tin be starting time for almost fourscore inches. These are approximations. Please consult the section pertaining to offsets in the owner's transmission for your appliance and the pipe manufacturer's guidelines for offset allowance with each type of piping.
- Elbow Strap/Wall Strap: Many manufacturers provide elbow straps for many kinds of pipe to support chimney systems with offsets. You'll use wall straps — ane every iv-5 feet of vent rising — when running a Course A or direct vent chimney pipes vertically within a chase or alongside a wall.
- Ceiling Support Box/Thimble: These components are necessary for use when the pipe is exposed and exiting the room where the apparatus is located. If you are venting vertically through the ceiling/roof, you will need a ceiling back up box or a round ceiling support. If you are venting horizontally through the wall, y'all will need a thimble. In stove pipage systems, these components will serve not only as support pieces just likewise equally the transition point from stove pipe to Class A chimney. In directly-vent systems, these volition be used only for back up, as there is no transition to some other kind of pipe.
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- Firestop/Attic Insulation Shield: When passing through a ceiling, floor, or attic, you will need to use ane of these components. If a ceiling support is not used, the firestop is required for passing through ceilings in multi-story homes, while the cranium insulation shield is required when passing through an attic. Both of these pieces ensure your pipe maintains proper clearances equally it passes through combustible ceilings and floors.
- Chimney Tee/Tee Support: When your chimney system passes through the wall, y'all will need a tee and tee support to serve every bit a xc-degree curve to turn your chimney up toward your roof. Tees are nigh commonly used equally connectors between stove piping and Grade A chimney systems, as the pipe that exits the domicile needs to be turned ninety-degrees to run vertically upwardly to the roof for termination. All Class A chimney tees volition need tee support as the base support betoken for the vertical pipage.
- Roof Support: Placed underneath the flashing on the roof, the roof support is designed to back up pipe both above and below the roof. There is a express amount of pipe it volition support, especially below the roof, only this component is ideal if yous do not have a ceiling back up box as part of your system.
- Flashing/Storm Collar: A flashing and storm neckband become mitt-in-hand; they are designed to protect your chimney arrangement from conditions harm. The flashing is the piece that covers the pigsty in your roof where the pipe penetrates. The tempest collar fits around your pipe simply above the flashing to prevent pelting or snow from getting into the minuscule crevice between your flashing and piping. You need to select a flashing appropriate for your roof pitch. A roof pitch is a measurement of vertical ascension over a horizontal altitude of 12 inches. For instance, if your roof has a vertical rise of 3 inches over a 12-inch horizontal distance, your pitch is 3/12.
- Extended Roof Bracket: When your chimney extends more than 5 feet above your roof, yous need an extended roof bracket to provide stabilization for your pipage against the current of air.
Summary
Nosotros hope this guide has been helpful and informative. Remember, it cannot be stressed enough to consult your owner'southward manual above all else when considering how to vent your hearth appliance. Some local codes crave you to utilise only the kind of piping listed in your possessor's manual for your unit. Always check with your local building code officials when designing a chimney organization to ensure proper installation. If you lot have lost your possessor'south manual, please call or electronic mail u.s.a., and a fellow member from our knowledgeable staff will be happy to see if we can locate one for your fireplace, stove, or insert.
Near the Author
Approaching his x-yr work anniversary, Collin is one of our National Fireplace Constitute (NFI) certified technicians and content managing director for the eFireplacestore, eCanopy, and EliteDeals brands. He is a Master Hearth Professional, which means he is certified in all three hearth appliance fields — wood, gas and pellet.
When not at piece of work, he spends fourth dimension with his wife, Lindsey, and his sons, Samuel and Eli, on their ranch enjoying their many animals. Completing projects around the ranch and spending quality time with his family are among his greatest joys.
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Questions About This Article
All customer questions are answered by our NFI Certified Specialists free of accuse!31 Questions & 31 Answers
Ted H
from Cody, WY asked:
March four, 2022
Does my double-wall pipe coming from the summit of the woodstove become on the inside or the outside of the flue extension at the bottom of the square support box?
1 Answer
This should exist installed outside of the collar on the support box.
Submitted by: Devon P. on March 7, 2022
About Helpful Answer
Keith G
from Davenport, IA asked:
November eleven, 2021
Stainless steel pipe thru the wall, from the forest stove, then along the outside of the business firm, angle dorsum at the roofline, and then upward?
1 Answer
Yes, this describes the typical through-the-wall chimney configuration for a forest stove. If you need a quote for such parts, please fill out our Chimney Quote and Design Course.
Submitted past: Tyler M. - NFI Master Hearth Professional person on November 11, 2021
Most Helpful Answer
Dennis
from Edmonton, Alberta asked:
October 29, 2021
Can I utilise Z-vent with a pellet stove?
1 Answer
The installation transmission for your specific appliance will listing the chimney systems that are allowed for installation. Please reference your owners/installation transmission.
Submitted past: Aaron D. on Oct 29, 2021
Most Helpful Respond
Raymond F
from Haverhille NH asked:
October 22, 2021
Should I utilise sealed or vented double wall pipe through my wall to my chimney?
i Answer
This will depend on the appliance and the manufacturer's requirements for venting.
Submitted past: Tyler One thousand. - NFI Master Hearth Professional on October 22, 2021
Well-nigh Helpful Answer
Dennis B
September 6, 2021
I need to extend the portion of the the chimney above the roof. Currently, information technology is only approx 2' above the roof. The existing chimney is double wall with a chimney cap. Do I have to go along with double wall or tin can I utilise the much less expensive unmarried wall?
1 Answer
Yes, past code, the same make/model of chimney pipe must be used to extend your chimney.
Submitted by: Tyler M. - NFI Principal Hearth Professional person on September 7, 2021
Most Helpful Answer
Nib
from Charlotte, NC asked:
August 25, 2021
Tin you utilize a flexible pipage on a direct vent gas fireplace rather than cut a stud? Information technology is nearly a iii'' offset and will allow me to centre the fireplace between two wall cabinets. Is this safe?
1 Answer
This volition depend on the specific model. Some directly vent gas fireplaces tin utilise a flexible vent piping, but others cannot. This information volition exist stated clearly in the installation manual.
Submitted by: Tyler M. - NFI Main Hearth Professional person on August 25, 2021
Most Helpful Answer
Bob M.
from St. Paul, MN asked:
August 21, 2021
I am replacing an existing stove that has an 8" stove pipe through to the roof. The new stove has a 6" outlet, thus sized for a 6" stove pipe. Can I install an adaptor that goes from 6" to eight" to avert irresolute everything on the roof?
one Reply
Nosotros exercise offer 6" to 8" stove pipe adapters that increment stove pipe size before connecting to class a chimney.
Submitted past: Jason W. on Baronial 23, 2021
Near Helpful Answer
Ben Antell
from Corona, CA. asked:
April 8, 2021
Tin can an existing masonry chimney with a clay flue liner exist raised using a metal adapter and triple wall pipe to the required pinnacle?
1 Answer
Yes, y'all can apply an anchor plate to transition a functional masonry chimney to a manufactured, stainless steel grade A chimney arrangement. The diameter of the pipe needed volition depend on the inside flue dimensions of the existing chimney.
Submitted by: Tyler Grand. - NFI Master Hearth Professional on April 8, 2021
Most Helpful Respond
John
from Cardinal NJ asked:
February eighteen, 2021
Can I put stove pipe or galvanized in a masonry chimney to vent a wood stove?
If so - would I remove the damper assembly?
1 Answer
You can use such pipe inside a masonry chimney. The damper may need to be removed in such cases, depending on the awarding.
Submitted by: Tyler M. - NFI Main Hearth Professional on February eighteen, 2021
Most Helpful Answer
Will
from Sarnia, ON asked:
December 30, 2020
Is it okay to run double-wall stainless from stove to exit with pelting cap iii roof in a store?
one Answer
The chimney will need to be a Class A chimney system to go through the roof and the outside of the shop.
Submitted by: Aaron D. on Dec thirty, 2020
Most Helpful Respond
Dave M
from PA asked:
December 2, 2020
Can I mix various names of Duravent?
1 Answer
No. For stovepipe, y'all should use either all DuraBlack or all DVL. For chimney piping, you should use only either DuraTech, DuraPlus or DuraChimney.
Submitted past: Tyler Chiliad. - NFI Master Hearth Professional on December three, 2020
Most Helpful Answer
Angel O
from New Britain, CT asked:
December 1, 2020
I bought the thimble to become thru the wall, but the wall width is much less than the thimble width. Is it acceptable to reduce the width of the thimble using a tin cutter to match the width of the wall?
i Answer
Assuming the thimble is only a conduit for a pass through, and not a continued role/adaptor for the piping itself, yes, this can be done.
Submitted past: Tyler Yard. - NFI Master Hearth Professional on Dec 1, 2020
Most Helpful Answer
Mike Eastward.
from Talmoon, MN asked:
October 23, 2020
How does a 6-inch blackness slide pipe adhere to the bottom of class A chimney pipe?
1 Respond
To attach to the Class A chimney, you will usually require an adapter or finishing neckband.
Submitted by: Brennan W. on October 26, 2020
Almost Helpful Answer
Michael E.
from Baltimore, Doctor asked:
October 23, 2020
How long (years) should a Class-A chimney pipe system final? A local contractor has told me twenty years.
1 Reply
20 years for course A pipe is a fairly conservative judge for lifespan, only that certainly holds true for some applications.
Submitted by: Tyler Thou. - NFI Master Hearth Professional person on October 23, 2020
Nigh Helpful Answer
Paul
from Duluth, MN asked:
September half dozen, 2020
For adjustable direct vent piping sections do yous demand to seal and/or screw the non-twist lock part?
ane Answer
Commonly, yep.
Submitted by: Will Thousand. on September eight, 2020
Most Helpful Respond
Steve
from Pasadena, NL asked:
Baronial 28, 2020
Can I apply pellet venting for an oil-burning stove?
i Answer
No, you could not. By lawmaking oil burning units require Class "A" pipe.
Submitted by: Owen O. on August 28, 2020
Most Helpful Answer
Lou
from Quakertown PA asked:
July 28, 2020
Can I run a flex pipe from my pellet stove on my hearth out through the clean out door on the outside of chimney?
1 Respond
The pellet stove needs to exist vented per the installation instructions as well every bit your local code. You may want to consult with the manufacturer and your building inspector.
Submitted by: Kathy O. on July 28, 2020
Virtually Helpful Answer
mrtmeo
from Illinois asked:
June 29, 2020
Is it possible to run a wood stove pipe from i room thru some other room to a chimney?
ane Answer
A transition from black stovepipe to solid-insulated class A chimney is required prior to the vent run exiting through whatever wall from where the stove is located, and then this would non be possible.
Submitted past: Will M. on June 30, 2020
Most Helpful Answer
Camille L.
from 11792 asked:
March half-dozen, 2020
When installing a stainless steel 6-inch liner in a masonry chimney tin you use a 6-inch to five-inch adapter and go on on down with the 5-inch stainless steel insert to the tea?
one Answer
The appliance you lot are installing will dictate the diameter of your vent system. Almost wood inserts crave a 6" diameter stainless steel liner that cannot be reduced in size.
Submitted by: Brian L. on March 9, 2020
About Helpful Answer
Jeanine S.
from Melville, NY asked:
March 2, 2020
Can a full exterior masonry chimney stack exist removed and replaced with a metal chimney?
1 Answer
Yes, this tin be washed with an anchor plate and properly-sized grade A solid-pack stainless steel chimney.
Submitted by: Tyler M. - NFI Master Hearth Professional on March 2, 2020
Well-nigh Helpful Answer
Mary
from NJ asked:
Jan 21, 2020
How many foursquare inches need to be around the pipe in a chase and what is the minimum size of a chase for a half-dozen�€ pipe?
1 Answer
This will depend on the appliance and the clearance requirements for its respective venting.
Submitted past: Will G. on January 21, 2020
Most Helpful Answer
Hyvis
from Creston, IA asked:
Dec 25, 2019
Practise I need an adapter to go from double insulated pipe to a triple?
1 Respond
You lot can't go from double insulated chimney pipe to triple insulated chimney pipe. Once you option a make and a size yous have to stay with that for the entire install. Adapters are required to become from the black stove pipage to the chimney components. Near brands accept adapters that are sold separately.
Submitted by: Kathy O. on December 26, 2019
Most Helpful Reply
Arthur
from Heber, UT asked:
December 16, 2019
Tin I vent a 80,000 BTU garage furnace flue (four" diameter, lp) into an existing 8" wood burning stove flue (single wall) prior to going through the cranium's class-A flue?
1 Answer
We do not recommend irresolute the bore on your furnace. It is best to utilize the appropriate pipage as listed past the manufacturer for the specific model you are venting. Such a change in flue bore can atomic number 82 to issues with proper draft and flow, impacting the performance of the furnace.
Submitted by: Tyler 1000. - NFI Master Hearth Professional on December 17, 2019
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Alex Southward.
from Portland, OR asked:
December 12, 2019
When venting a pellet stove up a masonry chimney tin can I use stainless flex from the stove up past the smoke shelf to the termination point of the chimney, or is a special section of flex pipage needed to get by smoke shelf?
1 Answer
Typically, you would use an increaser tee installed straight on the back of the pellet stove and then run 4" flexible stainless steel liner from the tee to the tiptop of the chimney.
Submitted past: Will M. on Dec 13, 2019
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David
from Ontario, Can asked:
Nov 30, 2019
I accept a fireplace insert I want to put into a brick fireplace. Just wondering what kind of pipage I demand if it's going up a brick chimney that is 16" square with a half dozen" hole on meridian of the insert and chimney?
1 Reply
Virtually woodburning fireplace inserts require a 6" diameter stainless steel chimney liner.
Submitted by: Tyler M. - NFI Main Hearth Professional person on Dec ii, 2019
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Lewis
from ondos4@verizon.net asked:
Nov 30, 2019
What type of pipage, insulated or air-cooled, exercise you call up would be best for use with a Mansfield hearthstone soapstone forest stove?
1 Answer
For woods stoves, y'all should employ a solid-pack insulated stainless steel class A chimney system.
Submitted past: Tyler Yard. - NFI Master Hearth Professional on December 2, 2019
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Doug
from St. Louis, MO asked:
November 23, 2019
Then I tin can't use class-a pipe to go through my finished (insulted, etc.) shop wall and then, when outside, convert to stainless single wall pipage to the cap on the roof? I'd like to use stainless single wall for obvious cost reasons and to forbid exterior rust.
1 Answer
Unmarried wall pipe may only be used for the interior run and only in the same room as the stove. When a vent run must laissez passer through a ceiling or wall, a transition to double or triple wall UL103 listed solid insulated class A chimney is required with no exceptions.
Submitted by: Will Grand. on November 25, 2019
About Helpful Answer
Randy
from Ohio asked:
Oct 21, 2019
What is the best style to connect from a 6-inch dirt/masonry thimble to Duravent double or triple wall pipage on the exterior of a building?
ane Answer
If the masonry chimney has been removed and simply a masonry thimble remains, there is no specific component fabricated for connecting stovepipe to a class A chimney organisation located on an outside wall. Instead, the clay thimble would need to be removed and replaced with a section of horizontally-positioned chimney with a finishing collar that would connect to black stovepipe on the interior of the home.
Submitted by: Will M. on Oct 22, 2019
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Tin can a 3 or 4-inch pellet stove pipe be used for a small coal stove the size of a milk crate?
one Answer
Nosotros're pitiful, but no, pellet pipage is not rated for coal or forest units.
Submitted by: Owen O. on October xv, 2019
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How do you effigy out what degree elbow is needed when installing a Duravent vi'' walled woodstove pipe?
1 Answer
Past the distance of the get-go you lot need.
Submitted by: Owen O. on October 11, 2019
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Felix J
from Augusta, WV asked:
September 9, 2019
Is there a specific size collar for a 7.5" straight vent pipage? I can just find 6 or 8 inch collars.
i Answer
Y'all tin click the link here to look for a collar for our 7.5 inch outside diameter of our Superior direct vent pipe. You lot will desire to brand sure that y'all currently have the same make and size.
Submitted past: Kathy O. on September 11, 2019
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Source: https://www.efireplacestore.com/chimney-pipe-buying-guide.html