Can I use silver aluminum pipe for a woodstove Chimney in a workshop? Or does it have to be black?

Answer 1

I am a county building inspector and have inspected several hundred wood stove installations over the past two decades. NEVER use aluminum or gas appliance pipe for a wood stove. Also NEVER use galvanized pipe. Aluminum melts at a low temperature and will fail with wood fire. If you had a chimney fire, you would probably burn your shop down. Gas appliance pipe is called "B-vent" and has an aluminum inner pipe, galvanized outer.

Galvanized pipe will release toxic zinc gases when heated to wood stove temperatures. This will give you heavy metal poisoning. This is also why you shouldn't weld galvanized pipe.

Use only black stovepipe, and screw the sections together. It needs at least 18" clearance to combustible materials, which his why you will probably have to switch to a UL listed insulated "all fuel" type pipe before you penetrate the ceiling and go through the roof.

Get some good advice from your local building inspector, fire department or fireplace shop. Hundreds of people burn down their houses every winter because of improperly installed wood stoves. This is serious stuff.

Answer 2

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Answer 3

Hey Mr Doltrite county inspector for 20 years, if you have ever spoken to a welder or anyone in that field aluminum galvanized pipe melts at approx. 2750*, it melts the coating at 800*, the boiling point is 1663* and softening and melting starts at 2400*. I have a wood stove and went to Lowes and Home Depot and they used that same scare tacit on me. I would have to buy $600 just in BLACK pipe when both of my stoves were under $100. It's a way to scare you into purchasing the BLACK pipe. Here in Tn. people were to poor to afford the BLACK pipe so they used the galvanized. So Mr Building inspector of 20 years needs to go to a welding shop and speak with ppl in that occupation before he try's to give sound information. Also a wood stove pipe CAN get up to 2000*, but it usually reaches 1100*. Wood ignites at 375* to 500* at 1100* the gases burst into flames. So...... use your own common sense.

Answer 4

Wood Stove Flue Pipe

Answer 5

Black suppossedly lasts longer because it is actually a different gauge. You can use pipe that would be made for a gas appliance, but keep in mind that a chimney for a wood stove is much hotter than the exhaust from a gas fire.

Also, when you are using pipe for wood chimneys, the seems should be down not up. This means the male end should fit down into the female end pointing towards the stove. This keeps the creosote inside the pipe.

Answer 6

It seems like everyone forgot one important point, the aluminum pipe will melt and, even start to burn, by the time your stove reaches a hot temperature.

Hard aluminum stove pipe is for venting a dryer, a gas water heater, etc not a stove with hard fuel. Galvanized is O.K. then put screws (metal self tapping) into the seams to hold the pipe from pulling apart.

Answer 7

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Answer 8

NO. Aluminum won't take the same heat that
black iron will.
Especially if you get a bit of tar burning in that
flue, aluminum will fail.

Answer 9

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I agree with Rascal. Triple is overkill, but it also depends on your local codes. I assume you will have it inspected by the city. Most insurance companies will not insure your home with a woodburner unless it has been inspected.

Answer 10

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