I ve written about how bad it is to put your heating and cooling system in an unconditioned attic especially in a cooling climate.
Hvac vents in garage.
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Recently inspected a townhome with drive under garage and finished basement.
The problem here is health and safety.
I stated the normal safety concerns and recommended a licensed hvac contractor inspect and correct as needed.
Garage air getting into the home can lead.
Here is my scenario.
International residential code prohibits any ducts or vents opened to the garage space.
From an efficiency standpoint the garage would be a better location than an unconditioned attic.
Two hvac supply vents were installed in the garage one directly above a gas water heater flue.
Typically there will be two 2 12 inch louvered metal vents co located just above the sill plate and usually near the vehicle entry end of the garage.
The principle reason is that it provides an area where fire can freely pass from the garage space into the attic and then quickly travel across the home over sleeping areas.
I figured that the vents will mainly be opened on the weekends and sometimes in the evenings.
Hvac registers grilles vents.
There s one place though that s even worse.
Garage door openers.
No cars ever get parked in the garage.
I don t have a window to use a window unit so i would would like to know if i can have one or two vents installed using the home s existing hvac.
I have been searching for requirements for residential garage ventilation.
System is working properly at this time.
As i understand this is required due to combustible storage such as paints thinners gasoline as well as the potential car running with vehicle door closed not.
Here is what the licensed contractor put in writing on the invoice.