Rockwool around chimney pipe. We plan to fit those with Rockwool.

Rockwool around chimney pipe got a quote to replace and one guys says to use triplewall all the way. Compressed rockwool is generally used as the infill / insulator on twin wall flue systems - so shouldn't be any problems filling the void - just as long as no leaks (shouldn't be) where any soot build-up from escaped gases could be accumulated. I wonder if even that would work next to a chimney. The outer pipe is cool intake air. Two 90 and a 45 elbows taking 6” into 8”. keeping the chimney from sucking all of the heat out of this area and 2. However, there is an open gap around this 6 inch liner right above the top of the stove. I am wondering if this will be okay? Is there any reason why the pipes should not be touching rock wool. ” I had to press him and convince him that is not an air barrier- after three times of him answering my air sealing question with “rockwool,” he kinda looked dazed for a moment and then said “we caulk around it. Careless too. The 6” is barely mated to the 8”, and not secured. Won't fully air seal it but should cover a large part of that hole. Apr 16, 2008 · Joecool, you cannot use Hart & Cooley or any "all fuel" chimney with a gas direct vent. Dec 25, 2024 · Pellet Vent Pipe; 1) Class A Chimney Pipe. Insulating the pipework to the standards set out in BS 5422 2009 reduces heat losses by up to 90%. Find products Download guide to BS 5422:2023 Cold Pipes Install ROCKWOOL's hot pipe insulation around hot water pipes which are widely used for heating and warm water distribution in buildings. Hot pipe insulation forms an important part of the ROCKWOOL Heating, Ventilation and Air Conditioning range. Keep in mind this box and the walls built with it will be outside the minimum distance to combustibles so a non-combustible material isn't necessary (but always encouraged). The installer said I could stuff some fiberglass insulation down inside the insulation guard, as you can see in the picture. I just replaced the insulation blanket that goes around the chimney pipe inside of the thimble that goes through the wall. Our stove is the 5kw dwarf stove from Tiny Wood Stoves. I will cut out sections in the rock wool so that it is not pushing against the pipes. Gas & Oil Cowls; Anti-Downdraught Cowls; Multi Fuel Cowls; Best Sellers; Accessories. They had already installed a Damper insulation plate, but I didn't like the idea of so much open space around the unit because it pulls outside air from what used to be the fireplace's ash cleanout. Find out how ROCKWOOL solutions can protect occupants in your building – and neighbouring constructions – today. the instruction for the chimney pipe should tell what you need The insulation slabs are easy to cut and fit around cables, pipes, sockets and services. Now granted my chimney in in between my attached garage and house and home is Apr 9, 2022 · Hi All, I plan on opening up my chimney chase to add some insulation and put up fire-rated drywall to create an air barrier to reduce drafting coming in from around my gas fireplace (direct-horizontal vent out the chase), particularly when it is really windy. As an alternative solution to pipe collars CE, ROCKWOOL Intumescent Pipe Wraps CE have been designed as a more cost-effective solution Case studies The challenge. 2 Our aluminium faced pipe insulation solutions are designed for HVAC services operating within a temperature range of 0-250ºC. 180 degree heat shields are available for single wall pipe, to reduce clearances to 6" for walls and 9" to the ceiling. ROCKWOOL insulation rolls are flexible products that can be installed in attic, roof, floor and wall spaces. It is important to choose insulation that is specifically designed for use with high temperatures and that is suitable for use around stove pipes. Sep 14, 2016 · Have Masonry heater that needs a chimney thru attic area. The new 140mm Sound Insulation Slab is specifically designed for external timber frame construction. I've been thinking that I might be able to insulate around the chimney in the loft space The full ROCKWOOL accessories range also includes intumescent pillows, pipe wraps and collars, cable firestops, putty pads, sleeves and wrap rolls. Oct 31, 2010 · My stove was just installed and I had them run a new chimney pipe for it. There are three key areas where ROCKWOOL chimney and flue liner insulation can be applied: Domestic – Homes with chimney systems often use coal, wood or oil as fuel sources. Hate to leave a big air gap in a really tight house. May 2, 2013 · I use this same system between foam and the stainless steel flue pipe when there is going to be a wood fire, a chimney fire can reach temps over 3000degs burning through the SS pipe. I'm going over a wooden attic floor in a old house. But here is the usual interpretation: 1. The ProRox range of stone wool insulation products are well-suited for various different industries – from production sites on dry land, to marine and offshore facilities. I have used the Rockwool fire bats around masonry chimneys held in place with SS wire and glued in place with foam. Moisture resistance: Rock wool is naturally water-repellent, preventing the growth of mould and maintaining its insulation properties even in damp conditions. But masonry can take more heat. Failure to properly protect combustible pipes can result in open voids through walls and floors increasing the risk of fire and smoke Jan 13, 2017 · I use the insert from time to time during the winter to heat the first floor additionally. What you have there is almost certainly a building code violation as well as violation of the spray foam manufacturer's installation instructions and as such you have a legal right to make the company you hired come back to fix it. Just asking. There are various types of insulation available for insulating around double-wall stove pipes, including fiberglass, rock wool, and ceramic fiber. ROCKWOOL TechWrap is a laminate product made up of ROCKWOOL stone wool insulationand an acoustic membrane, finished with a layer of reinforced aluminium foil. It doesn’t look like a double wall chimney from these pics, fwiw. Enhanced safety: Vermiculite insulation creates a protective barrier that reduces the risk of accidental burns and minimizes the chance of nearby Jan 19, 2012 · "Google" roxul pipe insulation. You’ll find a range of industrial insulation types, covering everything from industrial pipe insulation and temperature-regulating storage tank insulation to outdoor This 1000mm length of Rockwool pipe is used to insulate 150mm 6″ stainless steel flexible chimney liners. They make pipe insulation for all sizes of pipeI believe it was for pipe from 1/2 inch up to several feet wide. You can also use stainless steel flex liner insulation to reduce the build up of creosol and to help your chimney stay cleaner longer. You don' t want anything combustible within a foot of the chimney so you can either cover that area with one of the above, just stop the rolled insulation short of the chimney or (if using blown-in insulation) box it off with drywall, plywood, rigid foam The rockwool insulation wraps around the flexi liner to reduce the possibility of condensation The thickness of the insulation is 25mm PLEASE NOTE: The diameter size of the rockwool may come out larger (more an 8") so it can be fitted accordingly. 92"), 2 m. Jan 31, 2013 · The installation instructions of the stove (image quoted below copyright Bodart & Gonay) state that even with the convection vents, the enclosure area around the stove must remain vented to allow for 'decompression' around the stove, so that it doesn't overheat, with 200cm2 intake and exhaust decompression vents on each side (this is in ROCKWOOL recommends that the Pipe Section is secured to the pipe by applying three steel bands per section length, with the end bands approximately 100 mm from the lateral joints. Install ROCKWOOL’s pipe insulation around chilled and low-temperature water pipes, as well as wastewater soil vent pipes. I was going to use it when I put in a 6" ss liner last year. I was told by a local chimney sweep that this was acceptable. i would like to add insulation on top of the capped brick to insulate it. The fire resilience properties of our stone wool insulation are also important – especially for hot pipes – as they can run throughout a building at high temperatures. 1177°C (2150°F) Jun 8, 2020 · Once you have figured out where your chimney system will pass through, you will build a simple framing box around it. Properties: Non-combustible stone wool insulation with melting point of approx. We partner with chimney system OEMs to supply custom designed stone wool insulation products. Nov 27, 2021 · The question I have is for the top part. The rockwool insulation wraps around the flexi liner to reduce the possibility of condensation The thickness of the insulation is 25mm PLEASE NOTE: The diameter size of the rockwool may come out larger (more an 8") so it can be fitted accordingly. Aug 1, 2024 · Easy installation: To install vermiculite insulation on wood stove pipes, simply wrap the insulation around the pipe and secure it with wire or tape. If wire ties or spiral binding are to be used, they should only be considered on pipe sections with an outer surface diameter of 200 mm or less. I do not remember if I used sheet metal or sheet rock or plywood. I used a mineral wool type called Thermafiber Safing Insulation and have checked this out with the chimney manufacturer today to see if this was suitable. this Oct 24, 2021 · I reckon the chimney is a good place to start. So a lot of cold still infiltrates down on all that exterior exposed brick. It is therefore important to firestop plastic pipe penetrations where they pass through compartment lines. In the modern construction market, plastic piping systems are utilised frequently around our buildings to distribute hot and cold water, provide ventilation and drainage (SVP), etc. Oct 15, 2007 · This is a product of Security Chimneys. D. The wall around the window is all 3" of rockwool and hardibacker and the rockwool extends past the hearth area through the rest of the living room wall. Sealing an Air Leak in the Chimney. These will inevitably need to be routed through compartment walls and floors. This is not a proper installation, for two reasons- one you notice, namely that it's leaving a giant hole in your wall. " My current plan is to fill the void by gluing in a batt of Rockwool (with Rockwool's fireproof glue), leaving a hole in the batt that's sized for 2" clearance for the chimney pipe. Nov 1, 2013 · Hello all, new member but have been viewing for some time now. Fire safety is a high priority at the French military’s new Paris HQ – The Hexagone Balard. May 15, 2011 · I'm wondering about the efficacy of insulating the outside of a masonry chimney. Installation Equipment: Wear long-sleeved, loose-fitting clothing and proper gloves for handling insulation. There is a brick chimney that I'll go around with sheet metal and fire-rated chalk. The bottom section of the rock wool does not touch any pipes. There's also spray foam rated to seal around chimneys. It can be easily cut to fit any size or shape. Whether you are building steel or ceramic chimney systems, insulate your applications safely and durably thanks to the thermal performance of stone wool. The pictures show the configuration of the existing double-walled piping (8" ID, 11" OD) as it exits the stove and vertically runs up through a second-story attic before exiting the chimney. There are better ways to keep cold air out and losing the air you pay to condition. This is where the rock wool will sit. Mar 4, 2015 · Stephen, As usual, the code could be better written. and menards sells it ,says triple wall will not fit. It's an 8" pipe with a 5" pipe inside. potentially improving the efficiency of the house overall. Depending on the product, they will have various binders that hold the spun basalt together. The top of the heater is 13 1/8" from the ceiling. Searched but didn't find anything. My first thought is to block carefully around the pipe and then ask the insulator to stuff rockwool into the space, probably just around the bottom because at the top it opens up into the space within the roof jack. Is rock wool good to insulate around your insulated chimney flue? Just want to get some opinions before I have the inspector out. So, with all of this information, the answer is you shouldn’t insulate around a chimney. Our stainless steel flexible chimney liners and fitting components are designed to meet the highest standards of quality, and will withstand both the high temperatures produced by today’s modern solid fuel and gas stoves, and are highly Mar 4, 2015 · Stephen, As usual, the code could be better written. Improves safety : By properly insulating the pipe, cold air can be prevented from entering the chimney, which means that the temperature inside the chimney remains more stable and safer. Yeah, Rockwool has very good heat resistance and heat/sound insulation. However, I have read elsewhere online that mineral wool or other such insulation should be used near the pipe. When going through a foam layer, use 3" or more of rock wool between the flue's 2" clearance zone and the foam. Apr 5, 2017 · Shop Flexible Stainless Steel Chimney Flue Liner Rigid Pipe Multi Fuel Stoves Ø 125 mm (4. Even controlled fires pose serious risks in residential, commercial and industrial settings. NyRock Frame Slab 032 is a non-combustible thermal stone wool insulation designed specifically for use within timber and steel frames, and is manufactured using NyRock technology, a patented high speed technological innovation which delivers a thermal conductivity of 0. Calculator and savings. 1 day ago · The other contractor I spoke with, when asked– just said “we use Rockwool insulation around the pipe in the attic. Jan 9, 2011 · have an 8 inch stovepipe to double wall stainless. Accreditation: ROCKWOOL Pipe Wrap Roll is tested to BS EN 1366-3:2009; 3rd party certified through UL-EU Oct 15, 2011 · Can I use rock wool insulation around ( touching) the class a chimney pipe in the required "2 inch clearance " where it goes thru the roof? Sorry if this has been answered 50 times before. Dec 11, 2015 · Yes, spray foam is combustible. Apply the caulk around the base of the chimney pipe and then use a caulking gun to press it into place. i am going to be running a uninsulated B-vent up through the remaining chimney then through the roof. Dec 16, 2009 · I packed some unfaced fiberglass insulation around the liner just under the plate at the top of the chimney. Sep 27, 2021 · i have taken down my brick chimney to about ceiling level. The one I looked at came in 4 foot lengths x 1" of Roxul. In the first place, "all fuel" chimney has one hole--direct vent fireplaces need an intake and exhaust co-axially. You can only use the double walled concentric direct vent pipe tested and listed for use with this appliance. Note that while the IRC details how to build a masonry fireplace and chimney, a chimney must meet NFPA 211. Oct 30, 2019 · In the house, I used a sheet metal dam around the insulated pipe. The rockwool insulation wraps around the flexi liner to reduce the possibility of condensation . If installing ROCKWOOL products on existing insulation, ensure it is not squashed or slumped. other guys says to use rockwool double pipe from ceiling to flue and stovepipe ok from stove to ceiling connection. 032 W/mK, the lowest lambda stone wool insulation currently available in the Single wall stove pipe, going from the stove to the chimney must have a minimum of 18" clearance to combustibles. The other is because if that's a standard duct there may be a required clearance between it and combustible ma Jul 20, 2009 · There is insulation that would work: Rock wool or Roxul or any ceramic insulation. The ROCKWOOL Pipe Wrap Roll is tested to provide fire stopping to a variety of insulated and uninsulated plastic and metallic pipes through fire rated The Chimney Sheep wool pipe lagging is made from 100% sheep wool from the English Lake District. Thanks May 27, 2019 · The inspector told us that he wanted to see (for the future rough insulation inspection) a vapor barrier on the Rockwool we used in the chimney chase. Historically, people have used the term "flue" and meant the chimney itself. It is the gap between this outer box and the blockwork of the chimney breast that I am insulating (to prevent heat entering the walls). Sep 19, 2013 · Insulating with rock-wool batting in the studs/joist/rafter bays is preferable to fiberglass, and foam (particularly polystyrene foam) with just the 2" clearance would be a bit insane, even if it meets the letter of code. HVAC pipe insulation improves the operating efficiency of heating and cooling units to keep temperatures comfortable with minimum energy usage. The fireplace store simply told me 1" to combustibles. We plan to fit those with Rockwool. So this gaps provides a route for air intake, and hot air venting (in to the room). ROCKWOOL UK ROCKWOOL Limited Registered in England and Wales: 972252 Pencoed, Bridgend CF35 6NY United Kingdom Tel: 01656 862 621 Stove Pipe. . I did cap the rest of the chimney at the top around the exhaust pipe, but the chimney is about 25' tall and exterior to the house. I'm putting a Class A chimney adapter over this 8" stove pipe. ROCKWOOL’s hot pipe insulation can be installed around hot water pipes, heating and HVAC systems. Im new to fireplace inserts and have ordered a drolet 1800i insert and a chimney liner. After making the dam, I did scoop the insulation that had fallen against the insulated pipe. Types of Insulation. Apr 7, 2023 · The divider wall will also be insulated with 3" of rockwool, hardibacker and tile. The insulation is roughly 6 ft above the stove. Suppressing the spread of fire throughout a building is of vital importance in devising a fire safety strategy. Ozzy Rockwool Tubes are manufactured from non-combustible rock wool. My stainless chimney has a rockwool insulation 😁 F irePro Intumescent Pipe Wrap Roll is 40mm wide and 2mm thick, and is able to fit around pipes up to 200mm (O. Plus a flexible edge supports friction fitting without leaving gaps or cracks. These systems require effective insulation to protect occupants. Installing quality stone wool insulation to a chimney can help prevent the condensation of water vapour inside. Class A chimney pipes are designed to vent high-temperature exhaust from wood-burning appliances, including fireplaces, stoves, and boilers. Rockwool tubes do not sustain vermin and will not encourage growth of fungi, mould or bacteria and are suitable for continuous operating temperatures of up to 500°C. Vitreous Stove Pipe. Sealing up air leaks in the chimney is possible. So I guess my solution will be a semi-kluge of wood blocking around the pipe so the insulator can go around the outside of it. ROCKWOOL fire stopping products are designed to get down to the details, covering every joint, imperfection of fit and opening that could otherwise potentially allow the passage of fire, smoke and hot gases. Designed to be wrapped round pipes, this pipe insulation is one of the simplest, most cost effective ways to insulate, save heat, money and energy within your home. On the top side of the ceiling framing (floor joists, from the attic perspective), a sheet-metal air barrier tight to the chimney is acceptable. There was no insulation in the chase before… and we decided to go with Rockwool over fiberglass batt insulation (which would have had its own integrated vapor barrier of course) for this location. This is where the chimney draws air from. You could get some foil faced rock wool and cut it to tightly go around the chimney inside that cover plate. 4 Designed to accommodate more than 9,000 personnel across the 41-acre site, the hexagonal structure at its core is the country’s control centre for its army, navy and air force. The top part will sit snugly against the bathroom pipes. Holy hell. it's easier to shape and cut than regular insulation batts. We have some open wall cavities (it's an old balloon frame house). Once fitted we packed rockwool around it to insulate Dec 6, 2010 · Well, I have a open hole around the flue where it goes from the 1st floor up to the roof and cold air is just rushing down into the living room and master bedroom on which share the wall that the flue pipe goes down into, the area the flue goes into is a hallow void that is about 1. ” Original commentary: My chimney sweep says my weak draw is probably due to the chimney pipe not staying warm enough. per the code. Nov 5, 2008 · The pipe above it is 3" ABS discharge line to our Septic system, I defenetly do not want to burn through that. That is one sloppy install. Lisa Feb 19, 2014 · I understand the double wall chimney pipe draws between the two pipes to cool the inner pipe. We used it around our liner inside the chimney at the throat of the fireplace 10 years ago and didn’t have any smell, but some did get closer to the stove top and it smelled pretty bad. The heater has a 8" outlet chimney stove pipe that stands 8" above the top of the masonry heater. It should keep its thickness as ROCKWOOL stone wool insulation does not distort or degrade if installed properly according to spec. Lengths are sold in 1mtr sections and are 30mm thick (non-combustible materials), with a 169mm internal diameter. Dec 6, 2021 · Once the chimney pipe is installed, it is important to seal any gaps between it and the roof or wall to prevent heat loss and moisture from entering. The chase faces to the north Apr 9, 2022 · Hi All, I plan on opening up my chimney chase to add some insulation and put up fire-rated drywall to create an air barrier to reduce drafting coming in from around my gas fireplace (direct-horizontal vent out the chase), particularly when it is really windy. You can do this by using a high-temperature silicone caulk. ROCKWOOL TechWrap is easy to apply allowing for efficient installation. The ROCKWOOL Fire Stopping Standard Detail Guide provides in-depth guidance on the performance parameters of our passive fire stopping product solutions according to certified installations and applications. searching around i am getting conflicting advice on Roxul touching the pipe. After he left, I got to wondering. So at the plaster surface my plan was to carry the imperial base across that 2" to maybe a 1/8" to 1/4" gap from the chimney, caulk with the high temp red firestop caulk but not proud of the surface so the plasterer can carry the imperial to the chimney. The attic/loft will be used as semi-conditioned living space, and I am concerned about 1. Mar 16, 2009 · The gap is about 50mm. Where plastic pipes penetrate through fire rated walls and floors, these can provide a ready route for fire and smoke spread in the event of a fire. Pipe thickness is 25mm (1 inch) and lengths are 1000mm (39 inches). Jun 10, 2011 · So, my take home message here was while it is probably "okay" to seal that gap that goes around the chimney with a thin smooth strip of high temp silicone sealant, it is not at all okay and actually dangerous to try to insulate the space between the chimney pipe and the insulation shield. Insulation Materials; Woodstove Accessories; Fire Rope; Sealants May 22, 2021 · After the installers were done, I took the surround off and thoroughly insulated all around the unit with Rockwool. Rockford chimney liner insulation kits help ensure safety and efficiency for stainless steel flex chimney liners. Dec 13, 2024 · For venting, we ran a new stainless steel flex liner from top of the unit up through the top of the chimney. The ceiling above the hearth will also get rockwool. Apr 19, 2023 · Sound insulation properties: The dense and fibrous structure of rock wool helps to minimise noise transmission, providing a quieter living or working environment. There are three key areas where ROCKWOOL chimney and flue liner insulation can be applied: How to Install ROCKWOOL Stone Wool Insulation ROCKWOOL insulation cuts quickly and accurately with a knife for fitting around pipes, electrical boxes, wiring, ductwork, and between studs and joists that are less than a standard width. Those binders will off gas when they get hot. Sep 3, 2019 · I'm installing a direct vent fireplace, so it uses direct vent pipe, not b-vent. :ahhh: I will plan for 3" to 4" ( max between abs and chimney ) clearance around the chimney and also wrap some flashing around the wall insulation, studs and the pipe itself. ) Multiple layers may be required to the service line dependent on the material, dimensions and fire rating required. When we had some work done in our house, the code people had us put something they called "rockwool" - an inflamable type of insulation around all the heating pipes/vents. Feb 16, 2008 · what kind of pipe are you installing i can tell you superpro /supervent make a attic insullation shield that is made to keep the insullation of the pipe and if there is not enough space in the attic to allow for the attic shield the chimney must maintain a 2 inch air gap around it. If the chase has a fire stop, it should be almost air tight below the fire stop. So it should for last the lifetime of the building. 5" deep, and 6" Rockwool Insulation . Sep 18, 2021 · Can I install (or is it advisable or legal to install) rock wool directly against the radiation shield and against the chimney itself where it exits the ceiling and roof? The reason for this is that I want to do a good job of insulating the chimney at the exit hole. It has been engineered to provide noise control to building services and HVAC equipment, such as ductwork. In the garage, I made a dam around the insulated pipe. Find products Download Guide to BS5422 Hot pipes Pipe lagging helps prevent condensation, slows down freezing of pipe contents when temperatures drop and can prevent water being transported at low temperatures from heating up. ROCKWOOL FirePro® Intumescent Pipe Wrap Roll has been designed as an additional solution to the Firestop Pipe Collars and Intumescent Pipe Wrap range, giving greater flexibility and choice. The chase faces to the north The collarties are about 2" away from the brick chimney. Aug 22, 2011 · I just blew in some insulation into my attic space and the insulation is against the chimney pipe. I understand these to be different things. I am afraid I am losing much heat up this opening, and I'd like to plug it up so that it is airtight. Apr 18, 2023 · Otherwise, that chimney must meet the code including a 2" clearance to combustibles for interior chimneys/ 1" for exterior chimneys plus firestopping at each ceiling, etc. You could be right that I should keep 1" clearance even to non-combustible insulation. How to Install ROCKWOOL Stone Wool Insulation ROCKWOOL insulation cuts quickly and accurately with a knife for fitting around pipes, electrical boxes, wiring, ductwork, and between studs and joists that are less than a standard width. Extending chimney life: Pipe insulation also helps extend the life of the chimney by reducing wear and corrosion inside the pipe. Dec 4, 2021 · A properly insulated and vented chimney will allow for maximum removal of this harmful smoke. You can also apply a damp-proof membrane for additional protection, to prevent moisture and salts permeating your wall. There are different types of insulation that can be used to insulate a chimney. Should there be some space between the insulation and the pipe? I have 14 ft double wall class A chimney. I understand it draws air in from the bottom at the fireplace and expels it at the top of the pipe outside the home. needs. Each size of pipe has different thicknesses of insulation available as well. He reasoned that the insulated chimney pipe itself was insulated with fiberglass, so this was no different. The most common type is fiberglass, but there are also other options available, such as cellulose and rock wool. But have since read a number of post saying to insulate the liner. Adding effective insulation around cold pipes can result in significant energy savings – potentially up to and over 50 percent This is because it acts to lower the amount needed to cool businesses, properties and operations, providing a cost-effective way to cut carbon emissions caused by excess cooling 2. Designed to be applied around pipes carrying substances at temperatures between 12°C and 150°C, our products help prevent heat loss during transportation – and can protect against dangerous fire hazards. They provide protection against heat loss – and can help reduce noise transmission in buildings too. Some folks seem to be okay with wrapping the masonry chimney with Rockwool from the attic floor to the roof, the logic being that the concrete chimney gives the required 3″ of space, and the Rockwool of course being non-flammable. The parts they offer consist of a trim plate that goes against the bottom of the ceiling, to cover the hole in the rock, and then an adapter from their pipe to singlewall smoke pipe. I hope this clarifies things. Engineered to be fabricated into OEM applications requiring insulation flexible enough to be wrapped around something while still maintaining its excellent fire, thermal and sound absorbing properties. 5" 316 1mm Pipe; 6" 316 1mm Pipe; Cowls. thoughts Oct 15, 2022 · If you have 4” – 5” of open space around the chimney as it’s exiting the room / roof, then that’s more space through which warm air can escape. They are often referred to as double-wall or triple-wall pipes due to their construction. Chimney insulation should be a key consideration when manufacturing, installing or renovating flues and chimneys. Help me decide between R-30 Rockwool batts or three layers of 2-inch XPS. 4" Vitreous Stove Pipe; 5" Vitreous Stove Pipe; 6" Vitreous Stove Pipe; 7" Vitreous Stove Pipe; 316 1mm Stainless Steel. loylqah dvtg vpx izfjhflk ikpa iour jqpcpw emzze pha zfgqjo kfc snh skye esyvw wgxn