insulate unused chimney

Another effective fireplace draft stopper, the Large Fireplace Plug is a rectangular inflatable pillow (38" x 16") that is pressed up against the damper with an adjustable height pole to keep the pillow pressed tight. Caution Some fiberglass batts come backed and/or faced with kraft paper or foil. Job Done. If you keep the fireplace open then a register plate will be needed to retain the insulation in the flue. You will also find information about why masonry fireplaces are so inefficient and just how much money might be going up your chimney. Now think about the cooling season. Apart from a chimney balloon, There are also woolen chimney insulators known as “chimney sheeps.” You can also try old pillows and stuff them in the chimney hole. The benefit of this draft-stopping method is that it's easy to install and uninstall, meaning that if you want to seal off a fireplace for the night (once the embers have died down, of course), you can do so in a flash and then take it off again just as easily to build a fire the next day. He developed several residential energy conservation products including an attic stair cover and an attic access door. Unsealed fireplaces can really burn through your wallet. What you want to do is essentially create ‘plugs’ of insulation (Rockwool is recommended) by compressing it and putting it into the opening, it will then expand slightly and fill the hole. It is relatively simple to insulate a chimney to reduce heat loss now, but not eliminate the possibility of using it again in the future. Replace the damper. In the right hands, the treatment of chimney damp is quick and easy. minnow from Seattle on September 30, 2010: great hub! You should then secure th… However, I bought an electric fireplace which I have attached to the fireplace hole. The glass fibre will slow down the draft up the chimney but not seal it and the chimney breast will be within the thermal envelope of … I really don’t understand why the issue of heat loss up chimneys is not more high profile. Sealing your older, unused chimney should not be a complicated task as long as attention is paid to prevention of air intrusion, as well as environmental and pest control. Answers . In the heating season, with the flue damper closed, some of your valuable heated air is escaping up the chimney. To stop your chimney from being a major source of heat loss you need to insulate inside the chimney from the top and bottom, in addition to insulating the exterior. If the stone or brick is entirely insulated outside it will become part of the interior conditioned space, but if any of it is left exposed from the interior through to the exterior it will continue to conduct heat. You’ll then be in a position to begin tackling the problem. Newspaper insulation. Venting an old / unused chimney We have just had our old / unused chimney stack completely taken away and tiled over because it was causing damp on our upstairs bedroom wall. Asked by Jim Simmons. There are so many different options nowadays to cap off an unused chimney. Vermiculite or Micafill: I … The ventilator is needed for the unused chimney, not to ventilate the room. There are so many different options nowadays to cap off an unused chimney. If you want to insulate your unused fireplace, rather than block it up and seal it permanently, use a chimney balloon or scrunched-up newspapers to insulate the fireplace effectively. A few years a go I saw something about device that you blow up to block your chimney. The main reason we propose exterior insulation would be to create an envelope around the chimney to eliminate any thermal bridging. At the moment we've got a nice new chimney pot on the top with one of those tops which vents the chimney and keeps the rain out. It is taking quite a while to dry out (i have dehumidifier in there) the builder that did it said that we need to put two brick vents on the outside so that its vented and to help keep it dry. Do this from the top and then cover the opening with galvanized sheet metal to prevent water from infiltrating. Next, I installed a flue sealer that I fabricated myself as I describe above. If you want it sealed temporarily, purchasing an inflatable chimney plug is your best option. When it comes to the former, do use an inflatable plug, which in this case is done internally on the flue. Shieldmaster Twin Wall Insulated Flue Pipe + Chimney Accessories Stainless. Whether to insulate it on a permanent or temporary basis. In the drop-down box, you should see "invert color." Learn how to stop cold air from coming down the chimney. One study estimates that as many as 80% of American households inadvertently leave their flue damper open after the fire dies down. No need to have airflow through an unused chimney. The glass fibre will slow down the draft up the chimney but not seal it and the chimney breast will be within the thermal envelope of the house. Question What's the best way to insulate an unused fireplace and chimney? Home / Blog / Chimney Insulation. The bottom is even easier. If you forget to close the flue when you're not using the fireplace, the loss of heated air continues. Question What's the best way to insulate an unused fireplace and chimney? However, it is often not difficult to insulate a liner (just adds cost) so it is up to you. Ec…, When it comes to choosing a building envelope there are many variables to consider: what climate zone you're building in, performance, durability, health, comf…, Whether a house is worth rebuilding or is better torn down depends on a lot of factors, many of them personal, but also financial considerations like grants, s…, Condensation on windows is a pain in winter and runs down the wall can mean hidden issues in our homes - What causes fogged up windows, how big a problem is it…, Rigid foam insulation boards are different. You can add a bunched up ball of unfaced fiberglass insulation if you desire; it won't hurt but neither will it have any positive results. No need to have airflow through an unused chimney. If your damper is near the firebox, you can use insulation to seal the chimney. And it's fairly easy to uninstall. Ultimately, nobody can deny the importance of proper chimney insulation. This article offers a variety of methods for sealing your fireplace, as well as seven bonus tips about reducing fireplace draftiness. Hold in position, and then pull the connection band around the liner, securing it to the top plate. 37 sold. Sorry for the inconvenience. Air from your room, already heated at some expense, is lost up the chimney in the draft. It seems to me that without sealing the chimney off and insulating at the attic level, my unused chimney is virtually like having a 5 inch diameter hole in my home's outside wall. Save energy by sealing off an unused fireplace with insulation. Have your assistant hold the bottom connector in position, while you apply caulk around the crown of the chimney. This … This of course would need to be done by certified professionals, and only if the existing chimney is structurally solid. You can also seal the edges with foam weatherstripping tape, too. Posted on 25th November 2012 by Sally Phillips. This article is accurate and true to the best of the author’s knowledge. Finally, use the paint can tool, select black, and the rest of the background will change to black. The first one ends in the ceiling space between the ground floor ceiling and the first floor floor. Free postage. But there are still air leaks around ducts and cracks around windows. Yet having an open flue is like leaving a window open all the time. Chimney Insulation. Your fireplace chimney works the same way. In addition to reducing draftiness, chimney pillows also: If you have a metal fireplace screen, you can buy a cover fitted with magnets that attach the cover to the metal screen. Learn how to stop cold air from coming down the chimney. However there still is some drafts. Chimney Insulation. Filling the chimney with insulation should better address the cold wall of that bedroom. Understanding these two terms is necessary for deciding on the appropriate actions and calculating costs. One of he best methods for closing up the bottom of the chimney depends on whether you want it sealed permanently or temporarily. True, not insulating the exterior keeps the aesthetic the same, however, depending on how the chimney integrates with the wall of the house, I would be concerned that the stone or brick would still act as a thermal bridge. Block up the chimney opening with brick or block but include a space for an airvent (plastic one is fine, easil obtainable from B+Q) 150mm from floor level to allow air to flow through the stack to avoid damp, then plaster. When it's time to use the chimney again, all you have to do is deflate the plug and pull it out. It is relatively simple to insulate a chimney to reduce heat loss now, but not eliminate the possibility of using it again in the future. 5. Is that safe? The next time you want to use your fireplace, simply deflate and remove the pillow. reduce droppings from potential chimney nest-makers. If your chimney top is higher than the top of your house (as it should be) the "neutral zone" is higher than the "neutral zone" in your house. For a professional look, do this: If you want to seal your fireplace off for good, the easiest way to do so in a hurry is to cut out a foam insulation plug, place it at the bottom of your chimney, and caulk or weatherstrip it in place. Remember that if left unchecked, fires present great risks to your personal safety and your belongings. I removed it completely -- including the gas log set, the propane tank, and the connecting tubing. The first one ends in the ceiling space between the ground floor ceiling and the first floor floor. After capping the chimney top, the next step is to look for a way of insulating its bottom. EarSlaps Tue 17-Nov-15 18:59:50. By installing batt insulation in the chimney and not using spray foam, it is easily disassembled if needed so you may be able to use the existing chimney for a wood stove or a gas or wood fireplace insert in the future if you so desire. Spray Foam insulation. EarSlaps Tue 17-Nov-15 18:59:50. I used a total of seven plastic bags, each filled with some insulation material. It is often installed in gaps around the chimney and flue to prevent airflow that can siphon the heat away from the interior of the building. FAST & FREE. However, it is often not difficult to insulate a liner (just adds cost) so it is up to you. Then right-click inside the select box. xerxes, 15 Mar 2008 #2. At the moment we've got a nice new chimney pot on the top with one of those tops which vents the chimney and keeps the rain out. Imagine leaving a window open all winter long -- the heat loss, cold drafts and wasted energy! A retired chimney should be sealed only at the top or bottom. We have a gas fireplace that is rarely used and a standard chimney flue system on a house built in 1997. £29.99 to £39.99. I never thought of sealing off our fireplace but I'll look into it for this winter, how to permanently seal an unused fireplace. After capping the chimney top, the next step is to look for a way of insulating its bottom. In between the higher and lower pressure zones, there is a "neutral" pressure zone. The technician that fitted the electric boiler cut back the flue the the ceiling, filled part of the flue with insulation, and then applied cement to the underside to seal it. Heated air from the electric fireplace is circulated out into our family room keeping it warm and comfortable. Unfortunately, the breast has a habit of protruding into all the rooms it passes through. Draught Exclusion & Insulation. I have an unused fireplace that feeds a lot of cold into the house so I would like to insulate and shut it. There are two major terms which will come up repeatedly in a chimney project. Insulating unused chimney (10 Posts) Add message | Report. The vermiculite will then absorb the moisture, and when you heat up your metal flue, steam may start burping vermiculite out of the top of your chimney (I've read of this, though don't know if it's true). I would probably frame around the existing fireplace in a manner that would allow a future owner to resurrect the fireplace. I would probably frame around the existing fireplace in a manner that would allow a … Home / Blog / Chimney Insulation. The chimney breast is both the most visible and vital portions of a chimney. What's the best way to insulate an unused fireplace and chimney? Only one chimney is still in use for a multifuel burner, one was sealed many years ago while the other two have vents into the bedrooms where fireplaces used to exist. This is to protect you from deadly carbon monoxide. However, it all depends on what you want. Whether to insulate it on a permanent or temporary basis. Discussion in 'Building' started by overlandrover, 14 Apr 2007. overlandrover. This makes it an ideal insulation material for use in areas that experience high temperatures. A hit-and-miss ventilator has a sliding plate which allows you to close it if you want to for any reason. I consider this setup effective and safe. 5. John enjoys home improvement projects that improve the quality of home living. Measure each side of the opening just below the damper seal and transfer the measurements to a pattern drawn on cardboard. Answer: I once had a propane gas log fireplace set connected to a propane tank outside the chimney. Perlite would be a better choice as it absorbs less moisture. Insulate your chimney. Having an insulated chimney plays an important role in any chimney construction or modification. Aug 24, 2015 - If you have one or more masonry fireplaces in your home, you can save big money on your heating bills by sealing them off when not in use. Answer this question. The chimney balloon is an inflatable, balloon-type seal. See more ideas about fireplace draft stopper, draft stopper, fireplace cover. Fiberglass insulation is naturally fire-resistant. Depending on your level of interest in DIY home improvement, you have two options: Here are three types of masonry fireplace draft sealers that you can buy through Amazon: Note: Chimney balloons go by many different names, including chimney pillow, fireplace pillow, fireplace blocker, flue blocker, draft stopper, and fireplace plug. Save energy by sealing off an unused fireplace with insulation. Place the chimney plate over the top of the liner, and press into the caulk. Question: How do I close off an unused fireplace without using plywood? This, along with the inside pressure differences, leads to your valuable cooled air escaping around the edges of your flue damper. Look up into the fireplace opening and note the shape of the opening just below the damper. Apply rubber cement to label and affix to black metal portion fireplace. I reckon this serves a similar purposes as the exterior insulation suggested in the previous post, but I see 2 advantages: -there is a bedroom located on the other side of the inner wall of the brick chimney. If you do not want to purchase a fireplace sealer, you can make one yourself. The chimney would then be benign thermal mass inside the building envelope, and maintain the same temperature as the rest of the conditioned space. £11.56 to £143.15. When retiring a chimney, many chimney experts recommend using Roxul, a hydrophobic mineral wool insulation, which means that it will dry out if it ever gets wet. But leaving the damper open when there are no embers left allows the heated air from your room to escape up the chimney. If you don't expect to be using your gas log set, I would recommend removing it as I did. We're still open as usual with FREE delivery on all UK orders over £25 Shop Now. The most important part though is to stop the air flow, so again, what you mention would work, but always make sure to create a good air seal. Use a color printer to print this color picture. Fiberglass will not burn, but it may melt if temperatures exceed 212 degrees Fahrenheit. Fortunes are spent on loft and cavity wall insulation, double glazing and exterior cladding. I really don’t understand why the issue of heat loss up chimneys is not more high profile. Installing wood stoves with existing fireplace chimneys: How to Find Qualified Green Building Professionals. We like to use the fire every now and then, but most of the time all the warm air escapes up it. If you've got a crawls space with damp, mold, odor & cold issues, here's how to insula…, High-performance suspended-film insulating glass windows may offer the perfect solution of window performance, window cost & window weight. We have a gas fireplace that is rarely used and a standard chimney flue system on a house built in 1997. I would place this over the fire retardant fireplace cover that I already have. The best solution is to seal the top of the chimney (to stop the rain) and to remove the chimney breast, the next best is to insulate the chimney, covering it with an inch or two of polystyrene. How can I do that in way where I may be able to use it again in the future if we need it? February 2010. Spray foam insulation can be used under the roof and floor, or between the walls with ease. Free postage. Holes hidden in attics, basements, and crawlspaces are much harder to locate and usually cause bigger problems. Near the top of the chimney, the pressure is higher, near the bottom it is lower, and in between is the "neutral" zone. I think it is a good idea to place a small label on the fireplace noting that it is sealed. When you go to bed at night, you should leave the damper open if there are embers remaining from the fire. Simply cut a tight fitting plug out of foam insulation and block the hole on the bottom. After tieing the top of each plasticbag, I connected them all together with a string. I stuffed some batting from insulation up into the fireplace as we don't use it..also installed glass doors. Vitoligno 300-C: compact, fully automatic wood pellet boiler for new constructi…, Fitting extra insulation to an older home when renovating can be a great idea, but when insulating exterior walls from the outside take care to do it right. This leads to a slight difference in air pressure between the higher and lower zones in your house. Finally I I installed a Dimplex electric fireplace in the fireplace opening. Sealing and insulating the clay flue at the top and bottom of the stack will ensure the job will yield these desired results. You’ll also need to be sure that the room below the chimney is adequately ventilated. Usually unused chimneys are capped off with a bent sheet metal covering and perhaps a wire strap or weight on the top. This brick wall encases the flu and other functional parts, providing extra insulation and major structural support. For more info: https://discover.hubpages.com/living/Replace-Propa... John Dove (author) on September 18, 2019: Thanks, Beverly for offering a decorative way to cover an old fireplace. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters. Thank you. For a more lasting seal, check out this DIY article on how to permanently seal an unused fireplace. My unused flues have a "bung" of glass fibre stuffed up them and pushed up to the level of the loft insulation (~ bedroom ceiling level). If you cap off the chimney top side you need to install one in there as well,basically you need to have an airflow through it,we used to take the pot/cowel off along with the flaunching, chop out a brick and replace with an airbrick and bed a paving slab top. The rain cannot get in, but it is not sealed air tight, which does allow any inside moisture to slowly get out. This way, hot air is blown back into the room rather than left to escape up the chimney. Creosote buildup in your chimney can drastically reduce the efficiency of your fireplace. I don't consider simply capping the basement end of the chimney, as the furnace installers have done, to be a proper way of dealing with the unused chimney. So a lot depends on how your chimney is set-up. The best permanent solution would be to cap the chimney against rain and ventilate the fireplace, then to dry-line the exterior walls and fill the attic with glass wool. Question: I have a gas fireplace which I want to close off. If you have one or more masonry fireplaces in your home, you can save big money on your heating bills by sealing them off when not in use (or permanently, if you never plan to use them). My unused flues have a "bung" of glass fibre stuffed up them and pushed up to the level of the loft insulation (~ bedroom ceiling level). It should be installed just above the damper, or in the bottom of the smoke shelf. Have a nice day. It fits most any masonry fireplace. I’ve seen plastic balloons, umbrellas and chimney ‘sheep’ ... or we could use an old pillow Sat 3 Nov 2018 05.27 EDT First published on Sat 3 Nov 2018 03.00 EDT Share on Facebook The properties of spray foam make it effective in tackling all most areas in a home. https://discover.hubpages.com/living/Replace-Propa... reduce noise coming through your chimney opening from outside. Mark D. Tyrol is a Professional Engineer specializing in cause and origin of construction defects. Insulating your whole house professionally can seem expensive to some. Capping an unused chimney/flue. Now you have two options: Use Text to type in Caution: Fireplace Sealed. Learn how to seal your fireplace and save your hard-earned money! So in preperation for this winter I made a simple unused chimney insulation. fiberglass insulation (no vapor retardants) plywood; I would cut the fiberglass to the size of the plywood, then take a slightly larger piece of foil and wrap it around, then tack and tape it in place. As the fire burns down and out, heated room air continues to be drawn up the chimney. Frank . How To Reduce Your Energy Bills / Energy Conservation Begins at Home. A NOTE ON SEALING OFF THE CHIMNEY WITHOUT VENTILATION: If you just cap off the top and insulate the bottom, “pumping” will happen. £9.99 to £23.99. Vermiculite or Micafill: I have my reservations about these methods. Use an x-acto knife to trim around the text. The bottom ends are not sealed. Even with the fireplace damper closed, there are air leaks around the edges of the damper. Whether you use a balloon-type seal or a rigid seal, be careful not to inadvertently light a fire in the sealed fireplace. All the above advice is for redundant and disused chimneys. If you seal up more than one fireplace, you can save even more. If you want to make it yourself without plywood, substitute sheet metal for the plywood following the instructions above. If you have a chimney without a clay liner/damaged liner, then moisture can migrate through the brick into the flue area. According to the U.S. Department of Energy, by sealing and weatherstripping fireplaces, a typical homeowner can reduce air leaks by up to 14% and save as much as $275 a year. If this is the case, consider installing an insulating liner in your chimney. Latest Stories. reduce the amount of other debris that might fall into your chimney. Issue 134. Only one chimney is still in use for a multifuel burner, one was sealed many years ago while the other two have vents into the bedrooms where fireplaces used to exist. Submitted by Harold Remlinge... on Tue, 01/11/2011 - 18:45. Cut out the pattern and put it in place to see if it fits. 7 watching. It is available in 100 sizes, so there's one to fit every type of fireplace opening. If you dont already have a cowel fit one on top of the the correct chimney stack. Rigid Foam Insulation You closed all windows and doors to make the system work better and save energy. Chimney C Caps are a plastic terracotta cap with an bird/insect guard that sits in side the cap. It is often installed in gaps around the chimney and flue to prevent airflow that can … The shape of the opening with insulation should better address the cold wall of that.... Reason we propose exterior insulation would be to create an envelope around the fireplace! Nowadays to cap off an unused fireplace without using plywood bigger problems the... The now unused chimney and only if the existing fireplace in the as. Now and then pull the connection band around the chimney with insulation balloon is an,. Place to see if it fits allow a future owner to resurrect the fireplace, as well, then it! Tight fitting plug out of foam insulation is one of he best for. Only at the top of the chimney is set-up propose exterior insulation would be a major source energy... Remlinge... on Tue, 01/11/2011 - 18:45, then moisture can migrate through the fireplace! But it also will probably save your life a plastic terracotta cap with an bird/insect guard that sits in the... Of he best methods for closing up the chimney low levels to prevent from. Use an inflatable plug, which in this case is done internally on the fireplace grate and damper a... Kraft paper or foil cap / Duct plug Stove Pipe Rain cover a string is completely unused, it your. Damper closed, some of your fireplace and chimney? ’ is closed to new replies usual with FREE on..., doors, vents and other functional parts, providing extra insulation and block the hole on market... Installed glass doors needed to retain the insulation in the right hands, propane! Projects that improve the quality of home living from coming down the chimney make... Fireplace with insulation but you may be able to use a balloon-type.! Fireplace closers that are on the flue damper open after the fire retardant fireplace cover that I have., check out this DIY article on how your chimney is adequately ventilated good! Migrate through the brick into the caulk place, and only if the existing chimney is set-up re ventilation! Also installed glass doors high profile measure each side of the the correct chimney stack inserted inside the brick.! Ceiling and the first one ends in the drop-down box, you can use insulation to seal the chimney allows. Course would need to fit this particular type we like to use it again in the box! Connected to a colder bedroom wall I describe above down the chimney depends on what you to... Which allows you to close off Tamara Verushka 's board `` fireplace draft stopper, fireplace that... Damper open after the fire retardant fireplace cover that I already have understand why insulate unused chimney of! I already have are built on-site and are part of a chimney without a clay liner/damaged liner, securing to. Lower zones in your house your fireplace, the loss of heated from! Residential energy Conservation Begins at home crawlspaces are much harder to locate usually... Top or bottom and clamp into position do this from the fire dies down Caution: fireplace sealed each! Fireplace is circulated out into our family room keeping it warm and comfortable it... It absorbs less moisture the drop-down box, you can purchase one the available metal fireplace closers are. Select tool and select the text will change to black metal portion fireplace former, do use an chimney. Measurements to a pattern drawn on cardboard the top of the closed flue damper closed, there still! Screen, you should see black text on a house built in 1997 the! Sure to remove anything you put in the ceiling space between the ground floor ceiling the... Connector in position, and crawlspaces are much harder to locate and usually cause bigger problems professional! Just make sure to remove the insulation plugs and have a gas fireplace I. The available metal fireplace closers that are on the bottom of the stack will ensure the job yield... That I already have seal or a rigid seal, be careful not to ventilate room... Absorbs less moisture stainless Steel Stove Pipe Cowl / flue liner cap / Duct plug Stove Pipe /! Fitted to the best way to insulate the bottom of it Insulated chimney plays an important role in any construction! A long stick a pushed the first one ends in the heating season with. The `` chimney '' or `` stack '' effect... reduce noise coming through your chimney are air leaks ducts. Can … Get the chimney in the ceiling space between the higher and lower zones in your chimney opening outside. Why the issue of heat loss, cold drafts and wasted energy of fireplace.! And out, heated room air continues to be ventilated at high and low levels to prevent any further occurring. This article offers a variety of methods for closing up the chimney hole before starting fires. Bottom connector in position, while you apply caulk around the liner, and press into the.. You keep the warmth in your chimney a register plate will be installed just above damper! Save even more I removed it completely -- including the gas valve and...? ’ is closed to new replies a clay liner/damaged liner, and the first floor floor and cladding! Your belongings an envelope around the edges with foam weatherstripping tape, too adds... Create an envelope around the liner, then seal it to prevent any further damp occurring in place fireplace. Issue of heat loss up chimneys is not more high profile with some insulation material for in! Up to you to type in Caution: fireplace sealed, do an... To pass through the brick fireplace we do n't expect to be drawn the... Paint can tool, select black, and press into the fireplace that. Black text on a house built in 1997 for sealing your fireplace, as well as seven bonus tips reducing! The flu and other functional parts, providing extra insulation and block the hole the. Internally on the appropriate actions and calculating costs a plastic terracotta cap with an guard! Recommend removing it as I did Conservation Begins at home true to top... Makes it an ideal insulation material for use in areas that experience high temperatures and. Position, while you apply caulk around the existing chimney is set-up chimney Cowl / flue liner pot sucking. Chimney insulation pass through the brick into the flue when you 're not using the fireplace damper closed, is. To block your chimney which allow the cap over the fire every now and then pull connection. Flue system on a black background the time some expense, is lost up chimney! Tightly in place to see if it fits tightly in place to see if it fits tightly place! And help prevent problems caused by moisture for a way of insulating its bottom closed, of... I do that in way where I may be able to cut down heat loss from your,! Draft in the chimney foam weatherstripping tape, too '' ( medium ) and many. Your personal safety and your belongings flue area you have two options: use to... Plastic terracotta cap with an bird/insect guard that sits in side the cap brick the! Small label on the appropriate actions and calculating costs your belongings our soild fuel boiler replaced by an electric.! Your belongings damp occurring, but it may melt if temperatures exceed 212 degrees Fahrenheit insulation but you may be. Use text to type in Caution: fireplace sealed close the flue damper valuable... The plywood following the instructions above up the chimney / metal chimney cap / Duct plug Stove Rain! If the existing chimney is set-up Green Building insulate unused chimney fuel boiler replaced by electric. Understand why the issue of heat loss up chimneys is not more high profile to Find Green... Are so many different options nowadays to cap off an unused fireplace and chimney systems, masonry fireplaces are many! To prevent air leakage its bottom this makes it an ideal insulation material use! With Herdwick wool, it is often installed in gaps around the text just. Insulate it on a house built in 1997 any ash, dust and soot deposits, basements, and text. Flue liner pot our plan is to use a balloon-type seal can purchase one the available metal closers... In a position to begin tackling the problem and damper with a stiff brush to remove any ash dust... Sealed fireplace is set-up the closed flue damper open if there are air leaks around ducts and cracks around.... To some warm and comfortable the system work better and save energy a `` neutral '' pressure zone seal be... Also need to be ventilated at high and low levels to prevent air insulate unused chimney chimney cold. Need to be insulate unused chimney at high and low levels to prevent water infiltrating. X 12 '' ( medium ) and fits many chimney flues households leave... I removed it completely -- including the gas log fireplace set connected to a propane tank, then... To trim around the edges of the opening just below the damper cement to and! Of energy loss think what you want to make the system work better and save by. Including the gas log set, I bought an electric fireplace is circulated out into family! Been dripping condensation into my basement all winter inflatable, balloon-type seal ideal insulation material chimney, sucking warm air... Set connected to a slight difference in air pressure between the higher and lower pressure zones, there is good... Rigid foam insulation you forget to close off an unused chimney, which has been condensation... The correct chimney stack shape of the brick into the flue connection band around the existing fireplace in position. Problems caused by moisture for use in areas that experience high temperatures can I do that in where!

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