Recently inspected a townhome with drive under garage and finished basement. Two HVAC supply vents were installed in the garage (one directly above a gas water heater flue. I stated the normal safety concerns and recommended a licensed HVAC contractor inspect and correct as needed. Here is what the licensed contractor put in writing on the invoice:
"System is working properly at this time. Ducts in garage are supply vents and have been inplace since time of install. There is no code stating that you can not have supply vents in a garage. To seal the vents off could cause the downstairs Zone to be out of balance and could cause problems in the system operation."
My thoughts are do you want to live with a potential safety hazard or “live” with a balanced sytem.
What are your thoughts?