View Full Version : oil furnace in the garage.
ROBERT YOUNG
12-24-2016, 01:36 AM
Exposed oil furnace with AC in the garage.
Require a narrative considering venting is exposed.
Looking for a canadian standard or something applicable.
Raymond Wand
12-24-2016, 04:10 AM
Picture?
Is the oil tank in proximity to furnace or on the exterior of garage?
Is the furnace protected from damage - bollards?
Not sure what you mean by venting exposed?
Raymond Wand
12-24-2016, 04:41 AM
Also found this on oil tanks, although it has nothing to do with your question, its very good information albeit for North West Territories.
http://www.enr.gov.nt.ca/sites/default/files/brochures/homeowners_guide_oil_tanks.pdf
ROBERT YOUNG
12-24-2016, 06:43 AM
Interior garage.
Could not locate oil tank.
Too much stuff.
Could not get an image with the car removed.
Plenum, return and supply and branches in the garage.
Circa 1987 everything.
33169
Peculiar inspection.
We all get old. Be grateful you have a child caring for you.
Raymond Wand
12-24-2016, 07:06 AM
If it supplies interior of home it's wrong because CO can be carried into living space.
Jerry Peck
12-24-2016, 07:17 AM
If it supplies interior of home it's wrong because CO can be carried into living space.
Replying on my phone so hard see about the photo - but isn't the heated air system in a closed loop to/from the living space and separate from the combustion air system in the garage?
Just like when a furnace is in an attic or basement.
Raymond Wand
12-24-2016, 07:21 AM
I was under impression system is in garage not separate in its own room. Ducting not sealed.
Robert we need more info to clarify.
Jerry Peck
12-24-2016, 08:26 AM
I was under impression system is in garage not separate in its own room. Ducting not sealed.
Robert we need more info to clarify.
I am also under the impression the system is in the garage and not separate in its own room ... just like it would be in an attic or basement.
The only time the duct (return air) is not sealed to the unit would be when the unit is in the conditioned space, right?
Otherwise you would be having to heat the air of whatever temperature was outside (if the unit was in an attic) or whatever the air temperature was in the basement, leading to a very inefficient system trying to heat -40 degree air to 70 degrees, or even trying to heat 40 degree air in a basement to 70 degrees, and having to keep heating fresh air instead of just having to re-heat the environmental air in the conditioned space.
Jerry Peck
12-24-2016, 08:35 AM
Interior garage.
Could not locate oil tank.
Too much stuff.
Could not get an image with the car removed.
Plenum, return and supply and branches in the garage.
Circa 1987 everything.
Oil tank outside underground somewhere? In an inaccessible compartment off the garage? In a basement?
Ductwork in a garage needs to be:
- sealed just like all other ductwork needs to be
- protected from physical damage
- insulated just like all other ductwork not in conditioned space needs to be
- properly supported
Furnace in garage needs proper combustion air.
Vent from furnace in garage needs to not be insulated (if that insulted item in the photo is the vent).
As Raymond said - need more information, paint the picture better for us.
You guys way up north there need to make sure that silly looking fat guy feeds those weird horses with horn things well, they have a lot of work scheduled for tonight. :thumb:
Happy Holidays!
Raymond Wand
12-24-2016, 08:51 AM
Jerry,
I was using my phone to look and post about the furnace too.
Now back on my computer. I agree with your assessment.
Further concern with duct work at cleats, they are not sealed.
Also its a power vent exhaust.
Raymond Wand
12-24-2016, 09:04 AM
Circa 1987 everything.
Okay, so its 29 years old. Its past its due date. Time for upgrades/improvement/replacement ... $$$$ :)
Raymond Wand
12-24-2016, 09:17 AM
Another reference from state side fyi.
Default Re: Furnace in Garage
Greetings from COSA, the CARBON MONOXIDE SAFETY ASSOCIATION
Phone 1-800-394-5253 Website: The Carbon Monoxide Safety Assoc
See post 23
http://www.inspectionnews.net/home_inspection/heating-ventilation-air-conditioning-hvac-home-inspection-and-commercial-inspection/12198-furnace-garage.html
Fröhliche Weihnachten!
Jerry Peck
12-24-2016, 09:31 AM
Okay, so its 29 years old. Its past its due date. Time for upgrades/improvement/replacement ... $$$$ :)
And that's not even including that electrical mess front and center in Roberts photo! :)
Jerry Peck
12-24-2016, 09:37 AM
Another reference from state side fyi.
Default Re: Furnace in Garage
Greetings from COSA, the CARBON MONOXIDE SAFETY ASSOCIATION
Phone 1-800-394-5253 Website: The Carbon Monoxide Safety Assoc
See post 23
http://www.inspectionnews.net/home_inspection/heating-ventilation-air-conditioning-hvac-home-inspection-and-commercial-inspection/12198-furnace-garage.html
Fröhliche Weihnachten!
From that post you linked too:
"But, I will add that open combustion flames present a hazard for combustion gases and by-products (Carbon Monoxide for one) to reach the inhabitants of the dwelling you are inspecting. Forced air furnaces and other Air Handlers that have ductwork in garages can be the pathway to draw in these hazards. "
Somehow, putting the furnace in the garage is MORE dangerous than putting that very same furnace INSIDE the living space (because carbon monoxide can get into the ductwork from the garage, but it's okay to allow that same carbon monoxide to just roll out into the living space?
Either I am missing something or he did not think the reply through. :confused:
ROBERT YOUNG
12-24-2016, 12:41 PM
Sorry for the late reply.
Just heading home from last minute shoping.
Amana/Goodman oil fired furnace.
Exposed in the garage. Can not locate oil tank.
Natural draft.
Single wall with B vent through the wall assembly.
Ambient combustion air,
Second time I have seen this type of setup.
Typically/usually the have there own or in an utility room.
I will post the model and serial number shortly.
Fire code?
Jerry Peck
12-24-2016, 03:00 PM
Fire code?
I don't know about up there, but the IRC requires the ignition source (flame, spark, anything which can ignite something else) be at least 18 inches above the garage floor.
ROBERT YOUNG
12-25-2016, 09:53 AM
Everything appears correct.
The burner was 18" inches above the flooring.
Thank you so much for your response members and Merry Christmas.
Powered by vBulletin® Version 4.2.0 Copyright © 2025 vBulletin Solutions, Inc. All rights reserved.