Here we go with the A/C shit again. When running the fan in a space that is not air conditioned it has no affect on air condition also it is still a "whole house fan" if he wants it to be by simply turning off the air in his home if he so chooses and opening the garage door to the house. You are beyond dense, My father owns his own GC and HVAC company and frequently puts these in homes. Like you even admitted you ran your mouth without all the info so now go chem on your foot. This application is allowed, cost affective and quit common. Just because you dont have the mental capacity to comprehend the idea or concept behind it does not mean it is wrong. It is a solution that is used quit extensivly. It draws air in from lower areas closer to the ground forcing out the hotter air. You are only accounting for the exact temprature of the air but not the cooling properties had by the movment as well. It actually can make the house feel quit cold just because of the air moving so rapidly.
Also Texas building code does not restrict the placement of a WHOLE HOUSE UNIT.
As stated it refers to a WHOLE HOUSE TYPE and does not say it must be used for every room. It is just refering to the designation of the fan type as opposed to an EXAUST FAN
Exception: Whole-house ventilation-type attic fans that
discharge into the attic space of dwelling units having private
attics shall be permitted
But it says nowhere that it must be used for the whole home only that it must be a WHOLE HOUSE TYPE THAT DISCHARGES INTO A PRIVATE ATTIC.
so daddy installs HVAC equipment, so you are an expert huh? At least you think your dumb ass is. Let me guess it is "quit" common for you to take credit for you daddy's knowledge.
Let me break it down for you in moron terms so you can possibly understand it, yet I have my doubts.
It is 100 degrees in the summer and he is working in his garage so he turns on the fan to "cool" the garage down. Three scenarios can happen:
1) He leaves his A/C on in the house, opens the garage door between the house and the garage like you suggested to make it a whole house attic fan, then he is, like I said before, cooling his garage with the a/c. Stupid.
2) He turns his a/c off in the house, opens the garage door between the house and garage like you suggested to make it a whole house attic fan, then he is pulling the air from inside the house to the garage. Since you are pulling air from the inside of the house, it has to have some source for make-up air. There is only one source since the inside of the house is now at a negative pressure, the outside. So now he is pulling in 100 degree air into his house then through to the garage. I am sure that if anyone is in the house at that time, they would really appreciate it, then you have to use the a/c to cool the house back down from over 100 degrees. Again, stupid.
3) He leaves the a/c on, keeps the door between the garage and the house closed. Then the fan can not be used in this application because it then becomes a ventilation fan for the garage and by code, can not be discharged into the attic.
It does take a bit of brains to interpret codes, so I can understand why you have no idea what you are fucking talking about. A whole house type attic fan is refering to the application of the fan. You can call a bathroom exhaust fan a helicopter, but it is still a bathroom exhaust fan. A kitchen hood would ventilate your house because it pulls a negative pressure on the inside of the house. It doesn't have enough CFM to cool an entire house, but it would be the same concept as running a whole house attic fan in the heat of the summer, no cooling effect, yet you can't discharge that into the attic. Same goes for bathroom exhaust. And in reverse, you could use one of those type of fans as a kitchen hood or bathroom exhaust fan, but since it isn't designed to ventilate the whole house, you couldn't discharge it to the attic. The exception is for a whole-house ventilation-type attic fan, not a whole-house-ventilation type attic fan, as in, it is the type of fan used for ventilation for the entire house. A whole house attic fan is a fan that is used to ventilate the whole house when the cooler ambient temperatures will allow it. It is basically the same thing as an economizer on a large HVAC unit. Draws in cooler outside air to remove the heat from inside a space. If you use it on 100 degree days, you are not doing that at all, it makes no sense to, it is stupid.
Bottom line, he can not use that fan unelss he wants to waste energy by running the a/c at the same time, or make his house uncomfortably hot in the dog days of summer so he can work in the garage in 110 degree heat and then go inside to possibly even warmer temperatures and some pissed off people, just so he can keep the garage at 110*.
A floor fan would cost 1/10 of that, not piss anyone off, and he could get the conductive cooling effect from the air blowing on him and the evaporative cooling effect from his sweat evaporating.
Now go run to daddy for more HVAC advice because you clearly need it.