Reddit reviews 3M High Temperature Flue Tape, 15-Foot Roll (2113NA)
We found 3 Reddit comments about 3M High Temperature Flue Tape, 15-Foot Roll (2113NA). Here are the top ones, ranked by their Reddit score.
1-1/2 inch x 15' hi-temp Silver flue tapeResists moisture & temperatures up to 600 degrees FSeals metal flue pipe joints on furnacesHeat resistant to 600 degrees Fahrenheit1.5 in. x 15 ft. roll
maybe cut a circle out of this stuff
My mom uses it in crafting projects, it's pretty sturdy stuff.
Throw a piece of high temp tape over the opening. It'll help quite a bit.
Like this: https://www.amazon.com/3M-High-Temperature-Flue-15-Foot/dp/B00004Z4DS/ref=sr_1_3?ie=UTF8&qid=1506484316&sr=8-3&keywords=furnace+tape
Buy one of these too to make nice little ends:
https://www.amazon.com/EK-Tools-Circle-Punch-0-50-Inch/dp/B0090JVDNA/ref=sr_1_3?ie=UTF8&qid=1506484380&sr=8-3&keywords=.5+inch+punch
I guess, since it's .22, you can probably start with some masking tape and see if that smokes eventually.
http://www.amazon.com/3M-High-Temperature-Flue-15-Foot/dp/B00004Z4DS