Not to be negative about the radon testing which I think is great, but I am going to bet this requirement is about putting another "bump in the road" to try and limit Airbnb and VRBO rentals than it is about radon testing.

Doug, well stated. I think it is important that we attempt to keep the bar a little higher rather than lower. To this day I continue to find fans in the crawl space, mounted sideways to save 2 90's with black flexible drain pipe as the exhaust that discharges at he foundation vent, below a window. And people have been living in the home for years thinking they were safe from radon. If some people in our industry fail to follow the standards that have been in place for years I would hate to see the results of a relaxed standard.

The fan not be in the garage if three is a room above because it can not be below a habitable space. If there was no room above the garage it would be ok to put the an in the garage.

Fred Ellrott

Tammy, the cover looks like what we use to cover the thermostat so the it can not be tampered with. It should be available from any HVAC supplier.

Fred Ellrott