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Return Air in Laundry Room

So a guy in Florida recently failed an inspection because they were installing a gas dryer and only had a supply. The inspector told him that because it is a gas dryer, he has to have a return air vent. They already made the change, but I told him to still ask for the code citation.
 
No difference. I almost never see a return in a laundry room and never put one in when in the trade. While laundry can smell good you probably don't want to smell it all the time throughout your house.
Also, if anything a return could short a gas dryer for combustion air.
 
When you titled the thread ‘return’ air, I thought it was a brain freeze and you meant makeup air. Perhaps it’s my frozen brain.
 
A return air alone would cause a deeper negative pressure for both gas and electric. Make-up air for combustion would come from the make-up air provided to the room for the gas required by M614.6
 
Grok, does an electric clothes dryer require make-up air?

Yes, an electric clothes dryer may require make-up air, depending on the installation and local building codes. Here’s a concise explanation:Electric dryers vent moist, hot air to the outside, which removes air from the room they’re installed in. This creates a negative pressure that needs to be balanced by make-up air to ensure proper dryer performance and to prevent issues like back-drafting or poor ventilation in the space.
 
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