Venting smoke through wall

[hartkem]

I had a smoke hood built at a sheet metal shop and I am in the process of installing it above my eko. I really can't go out the roof because of space and need to go through the wall. I can find 8" wall vent caps for dryers and range hoods but I am concerned that they would cause the siding on my building to get stained from soot. They direct the smoke down and not out and up. I also need a backdraft flap built into it. Any ideas?

 

[hobbyheater]

I had a smoke hood built at a sheet metal shop and I am in the process of installing it above my eko. I really can't go out the roof because of space and need to go through the wall. I can find 8" wall vent caps for dryers and range hoods but I am concerned that they would cause the siding on my building to get stained from soot. They direct the smoke down and not out and up. I also need a backdraft flap built into it. Any ideas?

http://www.roofvents.com/categories.php This company has a very interesting wall vent .

 

[huffdawg]

Put the pipe through the wall then use a 90

 

[maple1]

Reduce to 6" before you go out - to give you more options?

My old cobbled one was just 6", seemed to be lots.

 

[stee6043]

I don't think you're going to have soot/stain issues with a smoke "hood". You're not going to be venting that much smoke, at least I wouldn't think.

I have my "exhaust vent" vented through a louvered cap that directs the air down along a section of siding on the back of my house. I only run my blower once in a while when I know I'm loading at a bad time but I've never had any staining issues.

 

[goosegunner]

How about one of these? You should be able to find one cheaper.

(broken link removed)


or if you want to get fancy with another air seal use one of these and power it with the same switch as the fan.

(broken link removed to http://www.smarthome.com/307109C/8-Inch-Diameter-Normally-Closed-Electronic-HVAC-Air-Duct-Damper-with-Power-Supply-ZC108/p.aspx)

gg

 

[goosegunner]

Better yet take your pick.

http://www.famcomfg.com/wall-vents.html

gg

 

[SIERRADMAX]

I use a 4" in-line "Hurricane Fan". Rating on the side says 200cfm. I vented to the outside with a 4" fully stainless steel dryer vent kit. Vent kit has a damper built in. Seal the seams with foil tape. It will suck a piece of paper through the opening in my hood.

Haven't used it yet for reloading but it works well for venting soldering fumes!

 

[711mhw]

....soldering fumes and cleaning the boiler dust!