Thread: PVC fire rating

PVC high efficiency gas boiler ( Munchkin ) runs across the garage ceiling before exiting side wall.
I am reading that a metal or plastic sleeve is required for fire rating through fire wall.
Yes, no ,ok, thankyou?

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Originally Posted by wayne soper

PVC high efficiency gas boiler ( Munchkin ) runs across the garage ceiling before exiting side wall.
I am reading that a metal or plastic sleeve is required for fire rating through fire wall.
Yes, no ,ok, thankyou?

Would not be good going through the wall into from the living space, but the exterior walls is no problem as long as there is at least 5 feet fire separation between that structure and the closest other structure as the exterior wall then does not require any fire-resistance rating.

I agree, but there has to be a way!
Especially since they already did it in the house i inspected today
As i stated, what I have read is that a metal sleeve is required.
This link is related to C Vac but same difference http://www.suescentralvacuum.com/firecode_001.htm
I will call local Building dept in AM but just figured I should throw this one into the pond for review.

Whoa! Time out!

Either I did not correctly read what you wrote ... or ... you did not correctly read what I wrote - so let's start over.

You originally said this:
" ... runs across the garage ceiling before exiting side wall.
I am reading that a metal or plastic sleeve is required for fire rating through fire wall ... '

Which does NOT say that it goes through the wall from the living area to the garage. It does, however, say that it goes through the exterior side wall. Then you made a reference to it going "through a fire wall", and, being as there is no "fire wall" between the garage and the living space, but there is a "fire wall" as the exterior wall of the house if the house does not have proper minimum separation from and adjacent building, I addressed that wall.

Your response said "Especially since they already did it in the house i inspected today" ... okay ... what way did they already do it?

Sorry,
Raised ranch
Boiler room next to garage at interior, laundrry room. ( that's another oops)
Condensing boiler added 4 years ago
PVC vent and intake sent through boiler room wall, into garage, across the ceiling, and out through the exterior side wall of the garage.
Poor pics no need to post
PVC breaches firewall in my opinion and wondering what others thoughts are.
Central vac removed from same garage leaves an open vacume pipe which is also a breach.
My simple solution would be to add a rated soffitt much like we would do for ductwork.
Or?

so i call the local building dept today and they tell me.
The only requirement in a garage is 5/8 sheetrock.
ductwork
recessed lights
heat
pvc
central vac
you name it
is OK
I'll just stick with my opinion

Originally Posted by wayne soper

I'll just stick with my opinion

I would too.

What about this?

Precautions should be taken to prevent condensate from freezing inside the vent/flue pipe and/or at the vent/flue pipe termination. It is our recommendation that all vent/flue piping exposed to
temperatures below 35°F for extended periods of time should be
insulated with 1/2” thick closed cell foam. Also all vent/flue piping
exposed outdoors in excess of the terminations shown in this
manual (or in unheated areas) should be insulated with 1/2” thick
closed cell foam. Inspect piping for leaks prior to installing insulation.

Hilti Online - CP 643-63/2" N: Item No.: 00304326

Originally Posted by Aaron Miller

Hilti Online - CP 643-63/2" N: Item No.: 00304326

Aaron,

You want to put that on a vent and allow it to close the vent off with the boiler operating?

I suspect that you just forgot to put a smiley face behind that in your post.

Originally Posted by Jerry Peck

Aaron,

You want to put that on a vent and allow it to close the vent off with the boiler operating?

I suspect that you just forgot to put a smiley face behind that in your post.

I was fairly certain that the discussion was about a whole-house vacuum duct. Did I miss something? Sure enough, I did. Sorry.

Besides, we have no boilers here other than what the bartenders concoct.

Originally Posted by Aaron Miller

I was fairly certain that the discussion was about a whole-house vacuum duct. Did I miss something? Sure enough, I did. Sorry.

If it was about a whole house vacuum duct of PVC, then all that needs to be done is to seal around the outside of the PVC where it goes through the drywall on the garage side, that fire-stop device is not required as that wall is not a "fire wall".

Originally Posted by Jerry Peck

If it was about a whole house vacuum duct of PVC, then all that needs to be done is to seal around the outside of the PVC where it goes through the drywall on the garage side, that fire-stop device is not required as that wall is not a "fire wall".

Required, no. Better, yes. In my opinion.

Originally Posted by Dan Cullen

What about this? Precautions should be taken to prevent condensate from freezing inside the vent/flue pipe and/or at the vent/flue pipe termination.

Why? Do you make the same recommendation for soil stacks?