Flue vent older furnace
#1
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Flue vent older furnace
I have installed an old Reznor ceiling mount natural gas heater in my garage. It's an oldie but goodie. The garage is a 5 car space with a 10' ceiling. The old flue appears to be an 8 inch. Can I reduce this to a 6"?? Was it just old standards why they built them with 8 " flues?? I'd like to use a 6" B vent through the ceiling and out through the roof.
There is a large opening on the front of the heater that probably provides combustion air and also goes directly up the flue. In order not to lose a lot of warm air from the garage, I am planning on sealing off this large opening on the front of the heater and installing a pipe to bring in outside air for combustion.
I know if I asked Reznor, they would probably say can't do.
Is it feasible??
There is a large opening on the front of the heater that probably provides combustion air and also goes directly up the flue. In order not to lose a lot of warm air from the garage, I am planning on sealing off this large opening on the front of the heater and installing a pipe to bring in outside air for combustion.
I know if I asked Reznor, they would probably say can't do.
Is it feasible??
#2
Originally Posted by c21guy
I have installed an old Reznor ceiling mount natural gas heater in my garage. It's an oldie but goodie. The garage is a 5 car space with a 10' ceiling. The old flue appears to be an 8 inch. Can I reduce this to a 6"?? Was it just old standards why they built them with 8 " flues?? I'd like to use a 6" B vent through the ceiling and out through the roof.
There is a large opening on the front of the heater that probably provides combustion air and also goes directly up the flue. In order not to lose a lot of warm air from the garage, I am planning on sealing off this large opening on the front of the heater and installing a pipe to bring in outside air for combustion.
I know if I asked Reznor, they would probably say can't do.
Is it feasible??
There is a large opening on the front of the heater that probably provides combustion air and also goes directly up the flue. In order not to lose a lot of warm air from the garage, I am planning on sealing off this large opening on the front of the heater and installing a pipe to bring in outside air for combustion.
I know if I asked Reznor, they would probably say can't do.
Is it feasible??
Older equipement was not effcent, so more heat going going to up the flue. I do NOT advisee going down to 6". Also, The large opening in front of the heat is more likey a draft hood, and that MUST be left open.
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??
This heater is listed at 120,000 BTU's - Output. It also says the input is 150,000 BTU's. Is it that inefficient?? Or is that normal?? What is a normal input and 0utput for a regular efficiency furnace or heater.
Maybe I'd be better off buying a newer unit??
When I said oldie but goodie, it is listed as built in 1977, but still worked when removed from a Daycare Facility.
Thanks for the info.
Maybe I'd be better off buying a newer unit??
When I said oldie but goodie, it is listed as built in 1977, but still worked when removed from a Daycare Facility.
Thanks for the info.
#5
That's alot of heat!
150,000 BTU..
is the garage doors going to be open and closed often?
Where are you out of?
Changing out the burners is not going to make any dffirance in efficeny of the heater.
150,000 BTU..
is the garage doors going to be open and closed often?
Where are you out of?
Changing out the burners is not going to make any dffirance in efficeny of the heater.