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Seriously considering the QC for my 2800sq ft SoCal home... From what I've read I am in the ideal area where it gets hot during the day 90-100F(at times) but 60-75F at night. In addition, I am considering purchasing a smaller version for one of my rooms that is notoriously hotter than others (builder, when under warranty, checked and claimed all was well- BS)
I have an "open floor plan" so my entry is all open to the second floor with 20ft high ceiling, with the small room size in my daughter's room. Cost-wise, what can one expect for a pro installation? I am more than capable of doing a DIY, however, I'm wondering if the wholesaler fans are better then the DIY ones that are available for purchase via websites?
I dont know what they charge for installation, because when I was looking around for who would install mine, all the pricing was "includes installation". Since I was not interested in trying to DIY it at all, that worked for me. The only issue I can think of with a split system (I believe thats what they call the whole home fan installs with more than 1 fan) is having enough roof venting to be able to operate both at the same time.
As it was explained to me (and it makes sense), if you dont have enough roof venting in your roof venting system, what happens is the air has to go "somewhere". If there is more volume of air than can flow through the vents, it will start to flow down the inside of the walls, etc... because its air and obviously will continue to flow. This could push hot air downstairs, or into rooms that you dont want it.
So, if you are considering 2 fans, you definitely want to at least chat with an experienced installer company who can help you size the fans "appropriately" and let you know if they think you have enough venting.
I mentioned who I used a few times, but didnt post it. I used a company called "quietcoolguys" which can be found at:
https://wholehousefanexperts.com/
They happen to be based in the city where I live ( temecula) but it appears to me they have install crews all around southern cali. They basically install these things all day, every day. My install took like 1 hour from walking in, to walking out (lol) and they put down floor covering in the appropriate places etc.
I would recommend at least checking them out as you look around for who to get quotes from. All the pricing seemed to be similar. I do also think there is a slightly different version for DIY vs the pro install.
Also, just as information, there are other companies that make similar whole home fans. Quiet cool is the biggest brand name in these things I think, but there are others, who either move a bit more air, or are more DIY, etc etc.