Wood stove shielding

If you have a wood stove that needs significant clearances behind and beside it, you may be able to build a shield that allows you to position the stove closer to the wall. Watch todays video to get a better understanding of the rules around shield a wood stove.

[@dbhunter6798]

Great video. Thanks for all the detailed information.

[@AjaOBrien]

I could kiss you for this! Seriously so helpful, thank you!

[@filmongebremeskel6422]

Amazing, thank you

[@denverbasshead]

Regulations suck. We just use the stove manufacturers clearences. Most new stoves are like 9inches without shielding

[@borderpropertyinspections2634]

I agree, some rules don't bake sense but as an inspector I need to call out even minor infractions. Sometimes miner issues mean the entire install must be redone. If the chimney is older it is likely the entire chimney needs to be replaced. On the other hand, stoves with clearances on the label are tested in a lab and are deemed safe if the clearances are maintained. Problem with wood heat is the heat dries out the nearby components and eventually burst into flames.

[@denverbasshead]

@@borderpropertyinspections2634 I live where there aren't inspections lol, but I get you have to for your job. But I always want to do it right the first time, so double wall stove pipe is a must. Single wall should be discontinued

[@HermesTresmegestus]

I need some real numbers here. What does 67 percent mean? And where exactly does that 67 percent start? Does it start at the front of the combustible wall (drywall) or does it start at the front of the shield? Lets say 18" spacing for non-shielded wall. We then add 2 inches of spacer and heat shield. So the reduction is 67 percent which of 18" is about 12". This means to me that I can now move my stove to the drywall 12 inches. So with the 2 inches of heat shield my stove is now 4" away from the shield. The difference between the thickness of the heat shield and heat clearances I'd like some illumination on

[@borderpropertyinspections2634]

Sounds like you have it right. If the stove requires 18" to combustibles (drywall and studs, not Stine etc) and you add a steel shield to gain 67% reduction, now the stove can be 6" from the drywall. The shield should be 7/8" minimum from the combustible wall. The position of the shield and stove is irrelevant. When measuring from stove to combustibles ignore the shield. Hope that helps.

[@jerryf609]

Thank you. Is this nook available for purchase? Or possibly from a library?

[@borderpropertyinspections2634]

Only to trained WETT inspectors. Call or text me and I'll help if I can.

[@charlos4241]

Very helpful thank you for this infomation. Do you happen to know the handbook for USA, specifically for Texas version?

[@borderpropertyinspections2634]

No sorry

[@butterflygardener]

I thank you for your video :) It has helped me a lot. I'm also interested in hearth pad clearances. Is it possible to get one of these wood energy technical training reference manuals, digital or otherwise?

[@borderpropertyinspections2634]

Your welcome glad it helped . The manual is only available to Wett trained individuals I'm sure

[@borderpropertyinspections2634]

Almost all stoves have the dimensions in their manual. If not the standard is 18" from the front of the door lip to the front and or any side with a door. 8" to the sides and back. If the stove has a clearance less then 8 " at the back then the pad much be tight to the wall only.

[@borderpropertyinspections2634]

Watch my inspection video

[@SistersofIBEW280]

Is the 7/8" standoff acceptable from drywall covered with paper, or something like cement board?

[@borderpropertyinspections2634]

If the wall is shielded with the handful of option then the reductions can be applied. The child MUST be non combustible. Either metal, ceramic tiles, cement board and a few other materials are acceptable

[@dmbassett]

These are all USA rules yes? In AU we have different regs…

[@borderpropertyinspections2634]

Canada

[@farmboydavid7596]

What is a good noncombustible meterial to use to create that 7/8” or 1” air gap behind one’s heatshield?

[@borderpropertyinspections2634]

Copper pipe couplings work well

[@wcswood]

I used cut pieces of conduit.

[@paulgush]

These are the Canadian regs, right?

[@borderpropertyinspections2634]

Yes

[@nicholaspostlethwaite9554]

That is just weird. Most wood burners are put in old fireplaces, exhausting through the original chimney. When first used the open fire itself would be next to the wall. Why is anyone worrying about warm bricks? Oh perhaps as it in not UK these are all wooden houses?

[@paulgush]

This is for combustible wood framed walls. A lot of stoves in north America get installed in places where there was never a fireplace, like cabins, garages, even living rooms

[@borderpropertyinspections2634]

@@paulgush I guess it's all about pyrolysis. when combustible materials such as wood framing is heated over and over again it can ignite at a much lower temperature than normal. If 480° C, 920°F is the normal wood that is super dried by the process of pyrolysis might ignite as low as 120°C or 250°F. Shielding is designed to prevent the wood framing from reaching over 90°C, 194°F.