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We would never use a concentric in a threw the roof application. That's why I thought it was just a straight piece of pipe threw the roof not one of those lol

They have there place I guess, not on a damn near flat roof in a area you can get a foot of snow in a weekend. The name on the furnace sticker was a hackish company in our area, but hell for all I know a homeowner could have asked for it. Conveniently there was a tee with a clean out cap right above the furnace, odds are it happened before.

why use concentric through a roof? just seems stupid!!

http://www.google.com/imgres?imgurl=...Q9QEwBA&dur=42

this would seem to eliminate a concentric from heavy snow areas, if it pertains to all of them.

Originally Posted by Kevin Weaver

For that reason I like to run the intake in the attic and draw air from there. Wouldn't it be hard to get a concentric to be much higher than that because they are not that tall to begin with?

It would be hard that's why I wouldn't use a concentric in that application.

For that reason I like to run the intake in the attic and draw air from there. Wouldn't it be hard to get a concentric to be much higher than that because they are not that tall to begin with?

Normally people shovel the roof but judging by the house being a pig sty, the half naked kids running around and the lady sitting on her phone the whole time there just may be a lack of motivation. The vent should be 18" above snow line, I think someone miss interpreted the manual lol

LOL, that's great! 18" off the roof, you're lucky there wasn't about a 2' tunnel down to the vent with how much snow you guys can get.

Originally Posted by ryan1088

Careful up there, I would hate to see you do a Tim the tool man Taylor dive off of that!!

Ah it was a ranch, my make a ladder was almost to tall lol

Originally Posted by Joehvac25

I told the lady it could be redone but since her dad was paying the bill I will assume she won't get it done lol. It was about the worst roof to put a concentric on, it was a 4/12 or less, plus the vent was maybe 18" off the roof, dumb!

Careful up there, I would hate to see you do a Tim the tool man Taylor dive off of that!!

I told the lady it could be redone but since her dad was paying the bill I will assume she won't get it done lol. It was about the worst roof to put a concentric on, it was a 4/12 or less, plus the vent was maybe 18" off the roof, dumb!

Originally Posted by OldSchoolMech

That's a Good one.
That's Exhaust?
Doesn't look blocked

The combustion air is pulled from the bottom of the cone shaped topper (It is concentric.) That is why it fired when he removed the door. It could then pull the combustion air from the basement.

That's a Good one.
That's Exhaust?
Doesn't look blocked

WOW , upper MI = I would think 3 feet above roof surface ?
Put address on a list for a cheap upgrade in the slow season.
luck dan

Time to shovel the roof

Went to a call today, furnace won't stay running, after pulling the door it ran fine. Went to the roof and saw this.Attachment 352611Attachment 352621