FAU in a closet

Kevin, you going to start to give Charley some lessons here or what?

I think Charley knows a little more of this stuff than you do, mind you. :slight_smile:

Why do you think I put it on here!

Not at all Charley, I’m happy to have you participate.

In this case, the doors were not really “louvered.” They are “louvered” looking, but actually had no openings. When the doors were closed, there was about a four inch gap between the door and the base base of the unit, so all the air was being drawn in from the gaps around the doors, the combustion air vent and the attic. That’s the reason everything was so filthy.

Also, it’s not an electronic filter, it’s a high-efficiency disposable, 4 inches thick.

Glad to here that as they modified it most likely. Something I recommend when seeing this style.

I did not think the Drip Leg…
If it is a gas furnace (gas line left of picture) in a Bedroom, that is the primary concern… Never Permitted…

Can be if the closet door is selfing closing and weathered stripped to prevent air from the bedroom from entering the closet must have external C air Never is a big word

Do you see that in the photo???

Based upon the Original photo…
“Never” is the “Only” big word (if in a Bedroom)…
I know the mileage of my “Never” comments…
your mileage may vary,

How would one deduce from the OP’s photo that this furnace is an 80%?

By the energy rating bar.
If you look really close you can see the arrow pointing to 80%.
This one I am displaying is just over 90%

74 Thorneloe Cres July 13 2012 116.JPG

The problem that I can not see but assume the flue pipe 80% furnace is less than 10 feet from the return:grin:

SWAG :wink:

I have good eyes Charley but I did not catch that from your comment.:smiley:

The long sleep with rosy pink cheeks…

Good call Jeff. Please share the verbiage you used to describe.

Not my milage its in the IRC or was

The forced-air system has been installed in a manner that represents a potential safety hazard. The intake must be isolated from the combustion chamber of the furnace, otherwise, operation of the furnace could result in carbon monoxide contamination to the residence. Therefore, the system should not be used until the installation has been corrected by a qualified HVAC contractor.

AHHH :slight_smile: For a moment I thought I was missing something obvious in the photo. :slight_smile:

My understanding is the system return cannot be located within the same room as the furnace - but is that only for 80% units? What about higher efficiency units.

The return on a 80% furnace can be in the same room just not within 10 feet of the unit. Would not apply to a 90% furnace

There is a circumstance when it would apply and that is if they decide to take the air for burning from inside the building at least here it does. I don’t know about your area.

Tell me why

We actually want to see vents added to outside.
It is the installation of High Efficiency Furnaces that say you can take the air from inside on some types of units.