The fireplace flue can be a major source of energy loss. Because we won’t use the fireplaces, we have two, I decided to seal both up with rigid foam insulation. 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. But DIY loft insulation is a possibility. Thank you. At the bottom, cut a hole into the insulation where the fireplace snout will connect to the rest of the fireplace, and secure this snout using a metal band. 7 watching. Insulating unused chimney (10 Posts) Add message | Report. Spring loaded legs are fitted securely to the base of the cap which allow the cap to be securely fitted to the chimney pot. I would place this over the fire retardant fireplace cover that I already have. Home / Blog / Chimney Insulation. Our plan is to remove an existing 4 pot chimney down to the bedroom roof joists. Understanding these two terms is necessary for deciding on the appropriate actions and calculating costs. 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). John enjoys home improvement projects that improve the quality of home living. Hold in position, and then pull the connection band around the liner, securing it to the top plate. As I stated in my first post vermiculite chips are the preferred method of insulating voids in & around flues - and serve a double purpose - as they poured into the chimney (a special funnel can be purchased or made) & tamped down firm. This one from Amazon features a fire-resistant (not fireproof) Pavenex fabric cover. The bottom is even easier. 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're still open as usual with FREE delivery on all UK orders over £25 Shop Now. This article is accurate and true to the best of the author’s knowledge. 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. I need a bit of advice re the ventilation of unused chimneys. Cut out the pattern and put it in place to see if it fits. 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. As such, it can be used to insulate a chimney. Not only will it save you from a steep expenditure on fuel and heating, but it also will probably save your life. It is often installed in gaps around the chimney and flue to prevent airflow that can … 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. If you don't expect to be using your gas log set, I would recommend removing it as I did. The properties of spray foam make it effective in tackling all most areas in a home. You’ll also need to be sure that the room below the chimney is adequately ventilated. £9.99 to £23.99. This way, hot air is blown back into the room rather than left to escape up the chimney. The rain cannot get in, but it is not sealed air tight, which does allow any inside moisture to slowly get out. Latest Stories. Posted on 25th November 2012 by Sally Phillips. 5. The tops are capped but ventilated. I never thought of sealing off our fireplace but I'll look into it for this winter, how to permanently seal an unused fireplace. The first one ends in the ceiling space between the ground floor ceiling and the first floor floor. The main reason we propose exterior insulation would be to create an envelope around the chimney to eliminate any thermal bridging. See more ideas about fireplace draft stopper, draft stopper, fireplace cover. 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. Job Done. Chimney C Caps are a plastic terracotta cap with an bird/insect guard that sits in side the cap. 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. Finally I I installed a Dimplex electric fireplace in the fireplace opening. reduce the amount of other debris that might fall into your chimney. This … The chimney breast is both the most visible and vital portions of a chimney. One of he best methods for closing up the bottom of the chimney depends on whether you want it sealed permanently or temporarily. 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 … https://discover.hubpages.com/living/Replace-Propa... reduce noise coming through your chimney opening from outside. When it comes to the former, do use an inflatable plug, which in this case is done internally on the flue. A retired chimney should be sealed only at the top or bottom. There are ways of extracting more heat from the flue when using a brick chimney but they do involve making absolutely sure the steel flue is gas tight and secure and it does need Rockwool insulation around the flue in that portion above the house walls and knocking out bricks on the inside. Insulate your chimney. When you go to bed at night, you should leave the damper open if there are embers remaining from the fire. Insulating your whole house professionally can seem expensive to some. 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. Vermiculite or Micafill: I have my reservations about these methods. 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. Use an x-acto knife to trim around the text. After capping the chimney top, the next step is to look for a way of insulating its bottom. Spray Foam 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. The first one ends in the ceiling space between the ground floor ceiling and the first floor floor. Reduce energy bills and keep the heat in by blocking your unused chimneys. 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. Spray foam insulation can be used under the roof and floor, or between the walls with ease. Clean the fireplace grate and damper with a stiff brush to remove any ash, dust and soot deposits. Look up into the fireplace opening and note the shape of the opening just below the damper. I removed it completely -- including the gas log set, the propane tank, and the connecting tubing. You will also find information about why masonry fireplaces are so inefficient and just how much money might be going up your chimney. Air from your room, already heated at some expense, is lost up the chimney in the draft. Rolls of foam insulation are cheap, says Brennand, and three rolls of … Get the Chimney Bottom Insulated. It should be installed just above the damper, or in the bottom of the smoke shelf. Answer this question. 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. 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. As such, it can be used to insulate a chimney. What's the best way to insulate an unused fireplace and chimney? After capping the chimney top, the next step is to look for a way of insulating its bottom. After tieing the top of each plasticbag, I connected them all together with a string. 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. If you have a chimney without a clay liner/damaged liner, then moisture can migrate through the brick into the flue area. He developed several residential energy conservation products including an attic stair cover and an attic access door. 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. The air between the liner and the chimney wall will insulate the liner (air is a good insulator) although the liner obviously touches a cold wall in many places. Capping an unused chimney/flue. This of course would need to be done by certified professionals, and only if the existing chimney is structurally solid. Remember that if left unchecked, fires present great risks to your personal safety and your belongings. Having an insulated chimney plays an important role in any chimney construction or modification. This was a few years ago so it might not be the correct way now strappy, Jul 4, 2008 #2. nextlonestar New Member. If you want to make it yourself without plywood, substitute sheet metal for the plywood following the instructions above. 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. Holes hidden in attics, basements, and crawlspaces are much harder to locate and usually cause bigger problems. 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