Take that number and multiply by 3 and use that to determine the stove pipe’s clearance from the wall. ... How to Install a Pellet Stove Pipe Through a Wall. Back when I … Some have a wall thimble that installs in the wall instead of inside and outside collars. Inventory is sold and received continuously throughout the … Class A pipe … Use single walled pipe going through an 8 wall thimble … A thimble is designed to allow Class A chimney pipe to pass through the wall, run into the room where your appliance is installed, and then connect to the stove pipe. It attaches to the chimney therefore avoiding … All the sections of stove-pipe going up, the thimble, the stove-pipe outside, the storm collar flashing thing, and 'top-hat' all together cost me less than $200. I am installing a Regency woodstove in my basement, there is an existing hearth and hearth floor there and an eight inch thimble going into (18 inches deep) a masonry chimney, the stove has a six inch outlet and I'm installing 6 inch stainless steel flex pipe … Heat-Fab Insulated Saf-T Thimble For 5" And 6" Diameter Stovepipe - The UL Listed Thimble allows single-wall stovepipe to pass through a combustible wall. Depending on what kind of stove pipe you use, the Class A chimney pipe must come into the room six inches (for connecting to double-wall stove pipe… Make a 3½ inch thick wall made of bricks against any combustible wall to which you want to pass the stove pipe… It's the box surrounding the insulated thimble that has the R30 insulation. Can I: 1. The two sections telescope to accommodate 6" to 11" wall thickness. Shop DuraVent Black and Silver Wall Thimble for 3-in Pellet Vent in the Wood & Pellet Stove Accessories department at Lowe's.com. Step 3 - Make a Wall. Our chimney products include liner insert stove pipe boots, chimney liner parts, offset insert adaptors, hearth rugs, high temp silicone, wood stove catalytic, wood stove wall thimbles, mantel heat shields, … I will be having the 6 stove pipe go through the wall and then outside to a section of single wall stovepipe for a chimney. Please Note: Prices, promotions, styles and availability may vary by store and online. Class A pipe that has 9" O.D, 8" Thimble is made for 8" I.D. It touches the thimble but there is 2" of mineral wool type Thermafiber Safing Insulation in the thimble against the double wall pipe going through the wall… Class A pipe that has 8" O.D., 7" Thimble is made for 7" I.D. For example, if the pipe’s diameter is 8 inches then the clearance should be 24 inches. Our ceiling is at 14'. Refer to the instructions for installing the thimble. Supervent® 6" ID Black Class A Double Wall Thimble. This piece allows the venting system to pass from the interior to the exterior through an existing wall… Diameters: 6" Thimble is made for 6" I.D. I do not want to spend the $2000+ dollars on stainless steel double walled stovepipe set up.