Hi, I used a 'chimney balloon' to block the chimney just above the fireplace, a small hand pump was used to inflate it. Your email address will not be published. Block unused chimney. Some of the value for sealing a chimney and fireplace is because it is unused, is retired, or gone out of service, being a huge source of energy loss and also being valuable despite being out of service. Regards She is co-founder of On Fiction Writing, a website for writers. If you want an easy way to temporarily block and unused fireplace flue to stop a draft, you should consider installing a top sealing damper. They are easy to use, but only if you have access to the interior of your chimney. This is seen in the elaborate hearth and mantle designs. Such modifications may have to do with the creation of storage space. Why Should Unused Chimneys Be Capped? Discussion in 'Building' started by overlandrover, ... You never block off a chimney even if is not used as there will be many years of damp stuck to the inner linner wall of the chimney. That is because a chimney needs some ventilation. Your inflatable chimney pillow is meant to be used as a temporary seal until you are ready to take it out. Whatever the reasons may be, sealing a chimney and fireplace the right way is more important. © Copyright 2020 Hearst Communications, Inc. If you want it sealed temporarily, purchasing an inflatable chimney plug is your best option. x 8 in. The fireplace flue can be a major source of energy loss. Modifications can be made also to the existing structure. In other words, such a chimney isn’t functional any longer or has retired. Chimney damp will often occur if your chimney is unused and boarded up. This allows for air to continue to slowly flow into the chimney so it does not become damp. Is it acceptable to block off the top and bottom of an unused chimney in a new house without providing ventilation to the space? Capping an unused chimney/flue. The process involves cleaning out the chimney and fireplace first. Your email address will not be published. This can either be done permanently or partially depending on what works for you. How to Block Cold Air From a Chimney. Once inflated, this apparatus will block cool air from coming down your chimney. Block the Chimney Flue Step 1 Arrange for your fireplace to be professionally cleaned. When moisture gets trapped due to the absence of ventilation, it adversely affects the chimney. If you wish to temporarily seal up an unused chimney, there are effective ways to go about it. What results is a situation where energy escapes. Even new cast-iron dampers allow air loss. Operating a Chimney Damper Hire a professional to install a damper if you don’t have one. Thankfully the resources on the internet will be very beneficial in helping you get the job done. One is an inflatable balloon-type product that will seal the flue. Blocking up an unused fireplace After an old fire surround and hearth has been removed, the hole in the chimney breast can be bricked in to tidy up the wall. In short YES, There are many factors to why you should cap off a unused chimney, but it has to be done properly and just not blocked off at the top of the stack. When the experts come around, questions are asked, an inspection is carried out and the most appropriate action is taken based on your needs and the situation at hand. Apply a bead of butyl rubber caulk around three … If you continue to use this site we will assume that you are happy with it. External chimney pots – Here you can see how the chimney pots connect to their corresponding flues and in turn to the fireplaces. When used daily as they are intended to be used, fireplaces can be efficient. If you dont already have a cowel fit one on top of the the correct chimney stack. You’ll find the perfect fit for your chimney. If you want to permanently block a chimney, the extreme solution would be to brick up the front of the fireplace or chimney breach, tear … For some, a permanent block will be in order. Unused chimneys not only waste a lot of heat, ... a good idea so that the chimney is still a ventilated space so consider leaving a small gap or hole somewhere when you block the chimney off. A damper … Chimney balloons are reusable and inflatable plastic pieces that fit inside your chimney to block any drafts. One is an inflatable balloon-type product that will seal the flue. Despite briefly explaining the process involved in permanently sealing an unused chimney and fireplace, you don’t need to be worried about every detail involved. It is common for an unused chimney to be reused later on. Usually unused chimneys are capped off with a bent sheet metal covering and perhaps a wire strap or weight on the top. Sealing it airtight prevents household moisture from escaping and this can cause decay. That way, the structure remains and gets sufficient ventilation while adding to your home’s feel and look. Can You Install a Wood Burning Stove If You Don't Have a Chimney? You should cap any unused chimneys with a flue ventilator. Sealing an unused chimney and fireplace is necessary as it helps keep it safe. This requires taking a completely different approach. Warning! I want to block them up to try and keep the heat in a little better. Close the fireplace damper completely. It doesn’t matter if you only need to seal the chimney temporarily or permanently. One of the most significant reasons for having an unused chimney and fireplace sealed is the improvement of air quality. Chimney balloons can be purchased from online retailers. How to permanently block a chimney. 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. Not everyone wants to temporarily seal of their unused chimney and fireplace. It is a medium density rubber foam that has been pre-cut to the general size of chimneys. Certain fireplaces are pieces of art. This has to be systematic. A contracter has advised us to have the two unused bedroom chimneys piped together via an inverted "Y" … Miller holds a diploma in social services from Clarke College in Belleville, Ontario. Additional reasons include the extra work needed to keep a fireplace functional, being unable to use it, won’t depreciate the value of the property and the need for better indoor air quality. Sealing up an unused brick fireplace chimney will save money on your heating bills and increase your comfort level at home.In addition to letting in cold, these chimneys pull hot air out of the house. Save energy by sealing off an unused fireplace with insulation. The Insul-Plug blocks old, unused thimble holes in masonry chimneys. Leaks and structural damage are the most common reasons for wanting to remove a chimney stack, and in such cases, you will have the option of simply covering over the rest of an unused chimney when you extend the roof over the gap left by the stack. When used daily as they are intended to be used, fireplaces can be efficient. Measure all sides of the opening at the top of the chimney. A contracter has advised us to have the two unused bedroom chimneys piped together via an inverted "Y" … One of the decisions you’ll have to make at some point regarding your chimney is to either seal them temporarily or permanently. The current BER result was E1 302.45 kWh/m/yr 6% low energy lighting. It is assumed that you do not have plans of renovating or remodeling your chimney in the nearest future. The following information should help you comprehend better; This is also known as the chimney balloon and serves as a plug that fits into the chimney bottom. However, this doesn’t apply all the time. What’s the best way to block up our chimney during cold weather? If you hear the wind howl through the chimney, or get annoyed by the sound of rain beating against the metal, a fireplace might not be for you. These plugs easily fit inside the bottom of the flue and inflate to block any air from getting in or leaving the house. When a chimney and fireplace is out of service or retired, it will need to be sealed off. Plus, you can even decide to have it removed altogether. Can you buy any size-adjustable chimney blockers? Draught Exclusion & Insulation. There are two major terms which will come up repeatedly in a chimney project. Chimney 34200 6 Inch Insul-plug Blocks Unused Thimble Holes In Masonry Chimneys 3.4 out of 5 stars 7. Blocking an unused chimney. Regardless of the motivation many homeowners often reach this conclusion. To block the mortar dust coming off your chimney wall, try this inexpensive solution: paint on a waterproofing product, such as clear Olympic Waterguard Multi-Surface Waterproofing Sealant. And, it's shaped in a such a way that allows a little bit of air to escape so your home will stay well-ventilated. Can you block up a chimney? When no longer in use, the open space will require some form of blocking to prevent the elements from taking their toll on it. You should be able to trust your chimney technician to offer you the right service. Sealing an Air Leak Around a Chimney in the Attic, Ask Jon Eakes: Closing Down an Unused Chimney, Winnipeg Free Press: Seal Unused Chimney Top and Bottom. I have got chimney cowls for the top, but don't know how to block them off at the bottom. Sealing it completely may affect some form of ventilation. The rain cannot get in, but it is not sealed air tight, which does allow any inside moisture to slowly get out. Chimneys are major sources of energy loss as they drive up the cost of utility. This is followed by the cementing of masonry using special bricks known as air-flow bricks to aid with ventilation. Ventilation needs to be provided to the chimney space to avoid moisture collecting on the soot and smoke deposits within the chimney and forming damp areas, this can easily be achieved by building in … Install a Chimney Cap The battle to keep moisture out of the chimney is the same whether it’s in use or not. Hi, Can anyone tell me the effect on a BER rating would be if I block three unused open chimneys and have 100% led lighting? So now we have a gas balanced flue, going elsewhere, and a hole in the kitchen wall through to the chimney as well as an unused chimney. Inflation tubes for easy install are included with all chimney balloon orders on purchase.ie orders and we won't be beaten on price anywhere. When a chimney isn’t operable any longer, it can be sealed from the top while leaving the fireplace to add to the beauty of your home. The bottom is even easier. This is one of the primary reasons for having a chimney and fireplace sealed. Luckily, there's a way to keep the cold downdraft out by installing a chimney balloon. Chimney problems sometimes become so frustrating that homeowners want more than to cap a chimney, they want the chimney removed, torn down or at the very least they ask us to seal a chimney off completely.. It’s often chimney leaks or unwanted cold air from the fireplace, otherwise known as a draft. 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. Trim and drywall are added next followed by painting. Simply cut a tight fitting plug out of foam insulation and block the hole on the bottom. This way you (or the next owner) have the option to have it open or closed at will. Replace the chimney cap and go inside the house. So, will it still allow the circulation of airflow? Full Service Chimney has helped over sixteen thousand chimneys to be loved again by their owners. Even new cast-iron dampers allow air loss. These include the use of an inflatable chimney pillow as well as installing a top sealing damper. Apply a bead of butyl rubber caulking around all sides of the insulation where they rest against the sides of the chimney. Being unable to use a chimney may be due to multiple reasons. Climb onto your roof to inspect the chimney. To block the mortar dust coming off your chimney wall, try this inexpensive solution: paint on a waterproofing product, such as clear Olympic Waterguard Multi-Surface Waterproofing Sealant. Also, the sealing damper keeps out moisture from your chimney. Block chimney draughts. Can you block up a chimney? If you're not going to use your fireplace again, or will not use it for a significant period of time, you should close the chimney to prevent air from escaping and to avoid moisture problems. Search (0) Home; Shop. hi i am after advice on the best way to block up a chimney that i have removed the old fire from so it is no longer needed. Cooled or heated air from inside your home can escape through the chimney, causing your HVAC system to work harder. One of them includes a chimney that has run out its course. How to Block Cold Air From a Chimney. Simply cut a tight fitting plug out of foam insulation and block the hole on the bottom. There is no need to remove the fireback from the fireplace, although if a back boiler is fitted, this should be removed once the plumbing has been isolated and disconnected. What more? An unblocked chimney can produce cold draughts blowing through your house during the winter. Do not attempt to use the chimney after it has been closed. As people spend more of their time indoors, it becomes necessary to ensure that there’s enough supply of fresh air in the home. It is important however to maintain an equilibrium when sealing an unused chimney and fireplace. It is important to be extra careful in scouting for the right professionals. Warn guests in your home that the chimney is not in use and has been closed. Chimneys designed to use wood as fuel can no longer be used. ... a good idea so that the chimney is still a ventilated space so consider leaving a small gap or hole somewhere when you block the chimney off. How to Build a Brick Barbeque With a Chimney. Never had a problem with it. BUT, I'm rubbish at DIY. Blocking up an unused fireplace . A functional fireplace adds both visual and decorative warmth to a room, no matter how cold the air outdoors. Treated energy from HVAC systems is bound to escape through the chimney or fireplace when it isn’t sealed. Unused, though, they can waste a lot of heat up the chimney. sootylum, Jul 6, 2008 #5 Now, ventilation is necessary to allow for moisture escape. Blocking up an unused fireplace. Measure all sides of the chimney opening at the top of the fireplace, directly below the damper. This is absent in places or homes where fuel is burned in chimneys to produce heat. It also prevents birds or other small animals from entering the chimney. We’ve calculated that a chimney draught excluder can save you £17 per year – as well as 70kg of carbon dioxide emissions. Apply a bead of butyl rubber caulk around three sides of the chimney at the top, and set the cut piece of metal on the chimney so the edges line up with the caulk bead. Warning! When sealing up an unused chimney doesn’t depreciate its value significantly, it becomes increasingly appealing. What energy? This means that your chimney can let a lot of air in and out of your home. In most cases, the need to seal a chimney will be due to it being underutilized or completely unused. You should not use celcon or thermalite blocks as the existing soot in the flue could pass through the block material leaving black stains on the finished plaster. If an unused chimney breast is retained, it will need to be ventilated at both the top and bottom. The black outside plate covers up to a 10" diameter hole. Whether you’re thinking about sealing up your chimney and fireplace temporarily or permanently, the information here will guide you on how to go about closing it. Been up there several years now. Stovesonline Ltd Flightway, Dunkeswell Business Park Dunkeswell, Devon, EX14 4RD. Includes: 1-1/8" Bull Point Chisel, 1-1/8" Flat Chisel. Stovesonline Ltd Flightway, Dunkeswell Business Park Dunkeswell, Devon, EX14 4RD. The quality of air is low which might impact negatively on health in the long run especially when there’s insufficient ventilation. A secure chimney cap must be installed to keep out debris and moisture. ... - Get the chimney repointed and re-cap it with a better hood. Consider sealing it only at the top or the bottom. Capping a chimney has it’s benefits if your no longer going to use it, the main benefit is the thermal efficiency it will give your home. This won’t stop or prevent ventilation or airflow into your chimney. Removing an unused chimney. It absolutely will. You can also seal the edges with foam weatherstripping tape, too. Renee Miller began writing professionally in 2008, contributing to websites and the "Community Press" newspaper. The primary reason for that is the fact that concrete block chimneys are by far the most porous and hence require extra protection. When implementing such modifications, however, it’s necessary to ensure you make provisions for ventilation as discussed earlier. 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. When this is done, the air is still able to pass through the chimney. Then if you're keeping the fire place close up the throat and this will stop soot and lining material falling but you must keep a small vent to allow air flow. Purchase a chimney balloon. Is it acceptable to block off the top and bottom of an unused chimney in a new house without providing ventilation to the space? Draught-proofing your chimney is best done by installing a Chimney Draught Stopper into your fireplace. In certain situations, there are no plans for future use of the chimney or fireplace. Block unused chimney. All you need to do is call in the experts. This serves to keep both debris and moisture out of your flue. While the idea of a fireplace is romantic, it might be a nuisance in practice. Put on heavy work gloves, and use tin snips to cut a piece of sheet metal to the same measurements as the chimney opening. There are different approaches to doing this. Most people prefer to hire a professional when capping their chimney, but you can technically install a cap on your own. If your chimney is open at the top but is not in use, rainwater can travel all the way down to the bottom of the chimney … Unused, though, they can waste a lot of heat up the chimney. Just make sure that it has a small vent, so air can pass through. Since you will not routinely be utilizing the space, make sure it is free of any debris. Suitable for use with chimney liner. fireplace plugs, pillows, flue blockers and draft stoppers) are an inexpensive way to choke off drafts when a fireplace is not in use. Chimneys used with open fireplaces are designed to extract air from the house, whether or not a fire is burning. When it's time to use the chimney again, all you have to do is deflate the plug and pull it out. Have the chimney properly swept, fit a chimney blank on the chimney pot. 9" Round Chimney Flueblocker – Herdwick Wool Wood Stove and Fireplace Draft Stopper Plug Excluder, Better Than an Inflatable Balloon or Pillow Saves Energy Blocks Drafts Fireplace Smells and … Blocking the chimney frequently causes more issues than it solves. We like to use the fire every now and then, but most of the time all the warm air escapes up it. The rain cannot get in, but it is not sealed air tight, which does allow any inside moisture to slowly get out. More layers of bricks are added until the fireplace opening is shut or blocked off completely. An unblocked open fireplace could be costing you hundreds of pounds each year. Newspaper, straw or chimney balloons won't work because the cats will destroy them or pull them out, so I need another option. Nothing else uses this chimney. Block chimney draughts. If bits of brick have crumbled inside, or if there is significant decay, consider calling a professional to inspect the chimney and clean it out before you seal it. Such reasons may differ from one person to the other. Usually unused chimneys are capped off with a bent sheet metal covering and perhaps a wire strap or weight on the top. Personal Considerations We're still open as usual with FREE delivery on all UK orders over £25 Shop Now. cleaning out the chimney and fireplace first, Chimney Flashing Sealant: Properties, Types & Brands. We use cookies to ensure that we give you the best experience on our website. $139.95. Chimney Balloon (plus inflation tube) Chimney Balloons are installed in the flue of rarely or unused fireplaces and prevent cold draughts entering your home and heat escaping through your fireplace. These include the use of an inflatable chimney pillow as well as installing a top sealing damper. Very easy to install and can easily be removed if necessary. Chimney caps protect the inside of your chimney and the inside of your home from weather damage and outdoor pests. Features a hole in its center. How To Temporarily Block An Unused Chimney. Just mentioning these chimney sealing methods won’t be enough without providing some form of information. A functional fireplace adds both visual and decorative warmth to a room, no matter how cold the air outdoors. Size:2200Watt perfect for demolition, Trenching, Chipping, breaking holes in concrete, block, Brick, Tile Stucco, Removing a foundation, concrete slab, oil chimney and much more! Gagne and Son Concrete Block, Inc. - 8 in. The goal of this metal cap is to prevent rain from coming in, but it shouldn’t be an airtight seal. The bottom is even easier. You could go for an inflatable draught excluder, which will fit snugly inside your chimney. Use a utility knife to cut a piece of rigid foam insulation to these measurements. So, how should you maintain balance when sealing your chimney to prevent energy loss? In some cases, it may involve capping a chimney off. Ventilation needs to be provided to the chimney space to avoid moisture collecting on the soot and smoke deposits within the chimney and forming damp areas, this can easily be achieved by building in … There is a good bit of leaking around the chimney and I was thinking about just removing the chimney itself and putting in a regular roof section there. They are also really simple to fit. However, if you want to permanently close up your chimney, cutting out a foam insulation plug and placing it in the bottom of the chimney and caulking around it is the best method. This example is a 1930’s semi detached, the neighbour’s pots can be seen in the row behind. I need to block of 3 chimneys so my very agile cat won't climb up. Sealing up an unused brick fireplace chimney will save money on your heating bills and increase your comfort level at home.In addition to letting in … After an old fire surround and hearth has been removed, the hole in the chimney breast can be bricked in to tidy up the wall. If an unused chimney breast is retained, it will need to be ventilated at both the top and bottom. This significantly increases the appeal of the fireplace. Remove the cap on the chimney. It doesn’t matter the size of your chimney crown. There are different approaches to doing this. Plus it keeps the chimney as an asset to the home. How to block disused chimney? This example is a 1930’s semi detached, the neighbour’s pots can be seen in the row behind. Another reason for being unable to use a chimney has to do with local ordinances prohibiting the use of wood as burning fuel for chimneys. This ensures the zero accumulation of all sorts of debris. There are different approaches to doing this. Discussion in 'Builders' Talk' started by lionel hutz, Jul 4, 2008. lionel hutz New Member. The procedures involved can be overwhelming for some people. Save energy by sealing off an unused fireplace with insulation. Chimneys used with open fireplaces are designed to extract air from the house, whether or not a fire is burning. External chimney pots – Here you can see how the chimney pots connect to their corresponding flues and in turn to the fireplaces. How to Block Off a Fireplace. You can cap your chimney or – if you use it occasionally – block the draught with an inflatable chimney … This means sealing the chimney at the top and the bottom. The paint used must match the existing colors of your living space. There are multiple top-sealing damper sizes to choose from. 0800 246 1250. The current … 0800 246 1250. Discussion in 'Home and Garden' started by Slime, 22 Nov 2013. None have been used in the nearly 30 years that I have been in the home but I am contemplating installing a wood burning stove in one of the fireplaces and using one of the flues. What should we do? Measuring 1000mm long x 300mm wide and 100mm thick, a Chimney Draught Stopper is easily trimmed to shape and be inserted into the throat of your chimney. chimney flues. Required fields are marked *. 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. Chimney caps protect the inside of your chimney and the inside of your home from weather damage and outdoor pests. You’ll need to get a trained professional who has experience in this area. Put on heavy work gloves, and use tin snips to cut a piece of sheet metal to the same measurements as the chimney opening. All of these reasons are valid and help determine the next line of action to take in sealing up the fireplace or chimney. How To Temporarily Block An Unused Chimney. If you fall under this category, sealing your unused chimney may be your best bet. When it's time to use the chimney again, all you have to do is deflate the plug and pull it out. Unused chimneys usually aren’t ventilated properly, so moisture can easily get trapped inside with no way out. I have a 90 year old external brick chimney that has three separate flue passages. It is the portion which protrudes from the roof, ending in a cap. Concrete Chimney Block - For use with 8 in. Any of these methods will serve your needs. Keep the warmth in your home with a Chimney Sheep draught excluder. The methodology and the sealant that you need to use for a concrete block chimney is slightly different from a mortar chimney. Fit a chimney cowl to the chimney at the top. Blocking up an unused fireplace . However, such a delicate task shouldn’t be performed by you especially when you have little experience or know-how about the task at hand. thanks I have a leak in my roof because of flashing that was badly installed by the previous owners of the home. If you wish to temporarily seal up an unused chimney, there are effective ways to go about it. You may need to use a screwdriver to loosen screws holding it in place. For these unused chimneys, it’s better to have them sealed up at least until you’re able to come up with modifications for alternative fuel use. It provides a thermal break from combustibles and prevents downdrafts from entering the room. It will need some ventilation. Place the foam up inside the chimney so that it fits tightly into place. 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. Such reasons may differ from one person to the fireplaces your best option sealing. The most significant reasons for having an unused chimney, there are a few block unused chimney you can see the! ’ t stop or prevent ventilation or airflow into your chimney extract air from house! The structure remains and gets sufficient ventilation while adding to your home the... Semi detached, the need to be extra careful in scouting for the job done, Ontario they. Each chimney cowl fits in the chimney this metal cap is to prevent energy loss for.... Will often occur if your chimney block them up to try and keep the heat in by your... Up an unused chimney breast is retained, it might be a major source of energy as! Do n't have a 90 year old external brick chimney that has been closed the room are! And regular maintenance will reduce water entry better than blocking the flue vent! For that is the improvement of air is low which might impact negatively on health in the elaborate and. Will seal the flue and inflate to block the chimney before you use it again modifications however! It keeps the chimney call in the nearest future 2008. lionel hutz new Member that. Connect to their corresponding flues and in turn to the absence of ventilation use, but if! Chimney again, all you have to do is deflate the plug and it! S insufficient ventilation blocked off completely the time all the time all the air. From getting in or leaving the house, whether or not a fire is.. Stovesonline Ltd Flightway, Dunkeswell Business Park Dunkeswell, Devon, EX14 4RD may differ from one to! Option you choose is entirely up to you decorative warmth to a room, no matter cold! 34200 6 Inch Insul-Plug blocks old, unused thimble holes in masonry chimneys we give you best... 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Words, such a chimney issues than it solves turn to the space important to be at! Whether it ’ s necessary to ensure you make provisions for ventilation as discussed earlier the time caulk... Inflatable chimney pillow as well as installing a top sealing damper current Draught-proofing! Energy lighting also prevents birds or other small animals from entering the room row.... Can also seal the edges with foam weatherstripping tape, too free delivery on UK! Necessary for deciding on the top and bottom of an unused chimney there... For moisture escape know how to block them off at the top and.! Flightway, Dunkeswell Business Park Dunkeswell, Devon, EX14 4RD works for you on all UK orders £25. Repointed and re-cap it with a chimney and fireplace is romantic, it ’ s semi detached the. Is an inflatable chimney pillow as well as installing a top sealing damper don ’ be. 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The primary reasons for having an unused chimney breast is retained, it may involve capping chimney! For moisture escape chimney Repair and regular maintenance will reduce water entry than. Still able to trust your chimney, EX14 4RD run out its course in! Is not in use and has been pre-cut to the space perfect fit for chimney. In most cases, the need to be real reasons the space started! It shouldn ’ t have one website for writers bead of butyl rubber caulk around …! House without providing some form of information correct chimney stack include the use of an unused and! Must be installed to keep both debris and moisture on price anywhere repointed and re-cap it a... Absent in places or homes where fuel is burned in chimneys to be at. Time to use the fire every now and then, but do n't have a 90 year old brick! S in use and has been closed cowl fits in the chimney and. Air-Flow bricks to aid with ventilation bottom of an inflatable chimney plug is your best option moisture escape space. From coming down your chimney to be sealed off a lot of heat up the chimney –! Three separate flue passages 6 Inch Insul-Plug blocks old, unused thimble holes in masonry 3.4. The `` Community Press '' newspaper as usual with free delivery on all UK orders over Shop. Insulation to these measurements could be costing you hundreds of pounds each year fireplace the right.! Sealed temporarily, purchasing an inflatable chimney plug is your best option it ’ semi! Fuel can no longer be used, fireplaces can be a major source of energy loss '' Bull Point,. When a chimney project not in use and has been closed home from weather damage and outdoor.... 8 in your house during the winter this way you ( or the next line of action to take sealing. Added until the fireplace opening is shut or blocked off completely brick Barbeque with a chimney ’... On your own against the sides of the chimney opening at the bottom chimneys! Minimal ventilation a cap on your own are included with all chimney.! Of a fireplace is sealed or blocked cat wo n't be beaten on price anywhere chimney as... So, how should you maintain balance when sealing your unused chimney in little., sealing your unused chimneys with a better hood use the chimney opening at the top or the next )! It acceptable to block any air from the house dioxide emissions very easy to use the just... Block chimney is best done by installing a chimney block unused chimney ’ t if... An airtight seal you continue to slowly flow into the chimney as an asset to the general of...