I have an existing 8" roof opening which the previous 65% gas furnace
and water heater was vented thru . The last owner abandoned both and
went with electric furnace and electric water heater...and simply
placed an 8" sheetmetal cap over the roof opening .
I want to install a 95% gas furnace requiring two 2" dia. PVC Pipes
(intake and exhaust) and would like to utilize the present 8"roof
opening . I could cut two seperate holes thru the existing cap ,
or, is it better to use one rubber roof jack for both pipes to go
thru if such a thing is offered ? I want to have it sealed good
against the elements.
Your help is appreciated
.
You might want to run the cocentric offset in the existing pipe and not centered incase you want to get a direct vent gas hot water heater in the future.
That would be a valid concern, except, I made myself a Solar Hot Water Collector which is giving me some mighty hot water of 145-160 f. ... enough for a daily shower and dishwasher , so I dont use my water heater anymore -- living in FLorida has its advantages :
(http://rimstar.org/renewnrg/diy_pex_...thermal_dn.htm ) .
Or get an Alumi-flash pipe portal. You can run four 1" to 2" pipes through it, but nothing really hot (i.e. nothing requiring a metal vent). The base is aluminum and it has a EPDM cap. They have one with a single 2" to 6" cap too, if you want to run the concentric vent through it.
Ill google the alumiflash pipe portal to see what is looks like . Thanks
I think I would replace the shingles/decking in the area, and put a new flashing at another spot.
"Better tell the sandman to stay away, because we're gonna be workin on this one all night."
"Dude, you need more than 2 wires to a condenser to run a 2 stage heatpump."
"Just get it done son."
Dad adjusted
Manufacturer is Commercial Products Group:
http://www.commercialproductsgroup.c...lumiflash.aspx
Or check the Big Rock Supply web site.
wow, those seem to be more for industrial. Would anyone need 4/5 vents in one location for a house?
Looks like maybe the portal line would be a bit more practical.
Oh yeah? I have one on my roof, with the C-481 cap. Two refrigerant lines and a 3/4 PVC for the control wiring. I have one port left if I ever need to add something like wiring for security cameras, a weather station, or whatever. It costs a few bucks, but it's way better than a pitch pan.
BTW, the guys who did that first install crammed the 2 refrig lines through a 2" metal vent flashing and of course couldn't seal it properly due to the small size of the hole. Idiots.
okay, well that makes a little more sense. I was only thinking of actual pipes (ie vent stacks, etc.) coming through and not additional things such as wire chases, etc..
Maybe on a two+ story house I could see that many actual vent stacks coming out, but on a one story dont know if you'd have enough run for adequate pitch.
Anyways, good product to know about.