FREE Shipping. The term “chimney plug” is used in reference to several different devices which can be used in a chimney. The crack is where it goes through the garage inside wall into the outside chimney (of block with ceramic liner). If the masonry chimney has a smooth surface the Cement will not be required. FREE Shipping. The upstairs portion of the chimney was enclosed with fiberboard, but this weekend we finally got around to tearing it off. Install Wall Thimble: Insert the black nail the Wall Thimble’s black section to the section of the Wall Thimble into the opening studs with four 1-inch roofing nails. As such, it can be used to insulate a chimney. This airspace is needed to prevent the transfer of heat which eventually results in avoidable chimney fires. Bonus: #6 Chimney Leaks That Aren’t Chimney Leaks. Chimney caps protect the inside of your chimney and the inside of your home from weather damage and outdoor pests. 4.4 out of 5 stars 80. Attach the Cap to the top chimney section, being sure to meet the minimum height requirements as It is a masonry/ceramic thimble that goes through a garage wall to a masonry chimney. It also will stop cold air from entering the house through the flue. When installing a chimney for a wood stove on a metal roof, you'll first need to assess the position. EXCEL is the only 1 inch wall insulated chimney to pass the ULC standard. It is often installed in gaps around the chimney and flue to prevent airflow that can siphon the heat away from the interior of … I should mention that once you move the cover plate.. it is like a metal or aluminum tube or whatever in the wall (about 8 inches in diameter) and then the drop off that goes down to the basement (through the chimney) or up to the roof. For example, your roof might have a leak through the attic vent or roof shingle at the top. To retire the chimney, fill the thimble with mortar and some brick and then leave the top part of the chimney open, for ventilation purposes. Insul-Plug Black Masonry Chimney Thimble Hole Plug - 6-Inch Diameter - 810106 Don't let old and unused thimble holes affect the efficiency of your masonry chimney. cut to just larger that the flue opening, over the unused flue. How to Close an Unused Chimney. However, if there is no alternative, the stove pipe must be passed through a thimble or collar. How to Seal Off A Chimney Flue . That said, I'm putting in a new high efficiency furnace that won't even use that second flue either. A cracked chimney flue tile can be repaired using HeatShield, removing and replacing the tile, or by installing a stainless steel liner. Always increase the size of the flue pipe as you go to the chimney, and make sure that the flue always pitches upward to avoid trapping exhaust gases. Chimney 34200 6 Inch Insul-plug Blocks Unused Thimble Holes In Masonry Chimneys. Our chimney goes through the middle of the house. (See Figure 7) The cement will act as an adhesive and also seal the Thimble tightly to the masonry chimney should there be uneven surface. System C (6-inch clearance) A steel ventilated thimble having a minimum thickness of 0.0236 inch (No. 24 gage) having two 1-inch air channels shall be installed with a steel chimney connector. Flueblocker FB13X35REC Chimney Sheep Draft Excluder, 13"x35" Rectangle, Grey. Tee and Chimney Section from the wall, and 3. The Thimble has an 8.125" inside diameter and is about 12" long. Water leaks: at the chimney top (missing rain cap, faulty chimney cap top seal), or at the chimney sides (defective flashing, wind-blown rain, open mortar joints) can send water into the chimney structure where in freezing climates frost can lead to cracks to the chimney itself or to its flue liner. $109.99 $ 109. Seal the door frame against the chimney when the chimney cleanout door and its frame have set soundly for 24 hours or more, remove the prop and seal the door frame to the chimney surface.. Use a masonry sealing caulk or sealant (about 1/2" thick) around the chimney cleanout door frame at the juncture of frame to face of the chimney base. This way you can take the thing apart each year to clean it without all that nasty furnace cement falling out onto the floor. This makes it an ideal insulation material for use in areas that experience high temperatures. Because the pipe gets hot, building codes usually require 1 inch of clearance from metal flues (2 inches from masonry chimneys) to any combustible material, including insulation. Chimney manufacturers' parts shall be utilized to securely fasten the chimney connector to the chimney section. You could also put a flat concrete patio block. One of the many causes of chimney related fires is the absence of air space between combustible materials and vent pipes. Place the chimney where it would be related to the stove and mark the center of the chimney on the ceiling. 6. Install the slip connector or telescoping section last. The chimney had a thimble that had been (very poorly) plugged with bits of brick and mortar. Last week I had the pros out to replace my rusty thimble and add a wye to combine my new NG water heater with my NG boiler. Last, fasten each section of stovepipe with self-tapping screws. Here is all you need to know about a chimney thimble, it’s usefulness, installing one, and sealing off an unused or damaged unit. Use regular masonry cement to cement a sheet metal "thimble" into the chimney base. Could I use the thimble by butting it against the inside of the steel panel and only cut a hole big enough for the class A chimney to pass through on the outside. The thimble enters the flue inside the chimney and is designed to accommodate a stovepipe. Reinsert the extended Thimble. Install an increaser on the flue base on the water heater. Then the breech pipe will fit into the thimble nice and neatly. I'd think the steel wall itself is considered a non combustible it's a thicker guage then the thimble. This airspace is … I thought about just a cap, but I don't want something that will let a lot of cold air in/warm out out of the house. A chimney is an architectural ventilation structure made of masonry, ... and a noncombustible wall thimble allows a vent pipe to run directly through the external wall. IMG_20140202_182532.jpg. 99. Install smoke caps in the smaller holes and seal them with furnace cement. From watching Youtube videos … A short section of the horizontal chimney must attach to the outer side of the wall thimble. Sometimes, a leak starts in a different place but finds its way to the chimney, and then visibly enters the inside of a room at the point of the chimney. One dedicated for the wood burner, the other is for the furnace downstairs. One of the many causes of chimney related fires is the absence of air space between combustible materials and vent pipes. The opening around a furnace or water heater flue or chimney can be a major source of warm air moving in the attic. Fiberglass insulation is naturally fire-resistant. A friend of mine suggested putting some bricks in the holes and then concreting.. If the Wall in the wall from inside the room, and align Thimble is going through a concrete wall, and the nail holes with the studs. Consulting with a professional will help you to decide which repair is most appropriate for you. EXCEL’s unique thermoplus insulation has an extremely high insulating value that helps to … Wall Thimble 9 Chimney Pipe Section 10 Adjustable Chimney Section 11 Elbows 12 Elbow Support Bracket 13 Tee 14 Tee Support 14 ... above the Flashing and seal it using 500OF RTV silicone sealant. The pipe connected to a wood or pellet stove should not need sealing unless it has a hole or leak in it. Wood Stoves, Fireplace Inserts, And Chimneys Thimble Collar Outlet collar 3 screws per joint, • A wood stove can be connected to a lined masonry fireplace chimney as long as … How to Seal Off A Chimney Flue . then just silicon around the chimney and steel corrugated panel? You should not pass a stove pipe through a combustible wall for a hook-up with a chimney flue. Most people prefer to hire a professional when capping their chimney, but you can technically install a cap on your own. Capping their chimney, but this weekend we finally got around to tearing off... 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