Originally Posted by JoeW
You also need to be careful of gas appliances with a whole house fan. I recall reading that if you don't have enough inlet area, the fan could draw spent gases from your gas hot water heater down the flue pipe. At work, we have a LARGE exhaust fan built into the wall. It will blow out the pilot light on the gas water heater if the garage door wasn't opened first.
this is correct, fortunately, most modern stoves don't have a pilot light, and most water heaters are in the garage.
the instructions for whole house fans always have a warning that say not to run the fan unless you have a window open, otherwise you can burn out the motor. I hope that does not mean electrical fire.