From what I’ve researched:
Gas fired heating systems (except high efficiency) require a chimney…?
Update: I was told from the listing re agent that they had to spend $100 to turn the utilities on. If that was the case, if this furnace exhaust was a problem they would have red flagged it and not lit the pilot!:shock:
jhorton1
(Jim Horton, State License #HI01100033)
2
I posted this question last night before I went to bed at 1am.
It’s now 12pm.
My question has been viewed 89 times. I don’t know what portion was visitors or NACHI members.
I was hoping to have this issue discussed so I could continue finishing my written report in a timely fashion for my client.
Problem has been resolved:
I spoke with the buyers re agent and she said “I’ve been in the business for 20yrs and it looks good to me, besides I may have another job for you.”
my guess is that is very wrong. There’s a 10/2 rule that combustibles must me 2’ higher than anything 10 away horiszontally from a wood burning chimney exhaust. there are graphics in the nachi library
and fwiw, I rarely see gas water heater flues at the recommended clearance height in the graphic- hard to call it out when you are standing on the roof looking at 20 or more houses that dont meet the spec. Im just saying.
I would call that one out though. I had a garage with one similar last week that I found charred sheathing on at the lower part of the roof from the attic
Oh boy…what a realtor!:roll: That would get referred out by me.
What make and model furnce is it?
I believe it depends on the furnace manufacturer and the vent manufacturer installation instructions:
It may need a sidewall vent kit and inducer.
See pages 9, 10:
**80% gas furnace installation instructions - Whirlpool HVAC Dealers **
jhorton1
(Jim Horton, State License #HI01100033)
9
Rob, I respect your opinion and your demenor towards other HI’s, but I don’t think your firing on all eight cylinders today!!!:roll:
Did I miss something?
This thread is for the furnace.
jhorton1
(Jim Horton, State License #HI01100033)
10
I was getting a little impatient so I decided to try a different approach (the re agent farce). I call it “Creative Marketing”.
Manufacturer:
TraneHeil
Model #:
H8MPNO75B12B1
Serial #:
A053948379
BTU: unknown
Manufacturer Date: 2005
The manufacturer name tag was duct taped to the furnace…
a gas flue discharging outside is a gas flue discharging outside. only variables are single wall or double wall which reflect on actual combustible clearance issues- the discharge is the discharge. Maybe I dont get the question. I am saying it doesnt matter what type of appliance its connected to on the business end.
jhorton1
(Jim Horton, State License #HI01100033)
12
I see what your saying, but when I reviewed my study book it states,
“Gas fired heating systems (except high efficiency) require a chimney.”
I’ve gotten myself a tad confused because a wood stove does not need a brick chimney and also burns much hotter. So why would my study material state this? As you can see HVAC is not one of my stronger skills at this point.
its all very gray. I agree. I only have these opinions specifically from running into simialr situations and needing to form an opinion of my interpretaiton based on the situation at hand. essientally there is a chain of command that must be followed for the true correct answer:
Manufacturer insutructions
local codes
state codes
national codes
what do you do when some of the above are condradicting? what if different people interpret differently? There’s not a good answer but hopefully something sounds good to you.
jhorton1
(Jim Horton, State License #HI01100033)
14
I found the manufacturers information, but it doesn’t specify anything about the exhaust pipe?
