Is there a system for adding a dedicated blower and housing into my existing duct system? It is hot here in Oklahoma, but some nights cool off well so turning off the AC and still having air come into the house through existing ducts would be great. Also, changing the air out in the house would be desirable to me. My entire unit is outside with accessible duct work.
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Low Cost Cooling
- Thread starter Dale
- Start date
oldgoat
Well-known member
I know on my unit it has a switch for fan only. If you have at least some of the windows open it will help cycle the outside air through. I don't know if it would be practical to try to make a dedicated outside air duct to tie into your existing ductwork and put a damper on each so that you could close off the one you don't want to use.
I too am in search for a low cost cooling system. I was thinking of adding a couple of exhaust fans. The temps in my 2 car garage these days are about 100F in the lower area and 113F in the upper attic area. I have 2 vent holes in the upper area and two in the lower area. I was thinking if I added 2 exhaust fans in the upper vents that will create a low pressure system that'll **** the outside air (80 degs) in from the lower vents. I was then going to mount a ceiling fan to throw the air around.
I didn't see any exhaust fans that'll be good for 300+CFM at Home Depot though.
Failing that a small whole house fan is another option but it's loud, I have one in the house. I don't like the A/C idea much in the garage as I like to have fresh air circulating through the garage in case of the fumes etc.
I'm looking for confirmation from anyone that has attempted similar ideas and if they noticed a big improvement.
I didn't see any exhaust fans that'll be good for 300+CFM at Home Depot though.
Failing that a small whole house fan is another option but it's loud, I have one in the house. I don't like the A/C idea much in the garage as I like to have fresh air circulating through the garage in case of the fumes etc.
I'm looking for confirmation from anyone that has attempted similar ideas and if they noticed a big improvement.
Last edited:
hangfirew8
Well-known member
Is there a system for adding a dedicated blower and housing into my existing duct system? It is hot here in Oklahoma, but some nights cool off well so turning off the AC and still having air come into the house through existing ducts would be great. Also, changing the air out in the house would be desirable to me. My entire unit is outside with accessible duct work.
Fresh air ventilation systems are common in tight houses in very hot or very cold regions. The houses are so well insulated and sealed, that without forced fresh air ventilation, the indoor air would get continuously recirculated and become stale.
http://www.hgtvpro.com/hpro/np_supplyhouse/article/0,,HPRO_22396_4759621,00.html
Many such systems have timers and are sized to provide at set number of exchanges per day. Since they are usually installed in very hot or cold climates, they often involve a heat recovery exchanger called a Heat Recovery Ventilator (HRV) to recapture some of the heating or cooling from air that is exiting the house, and hand it off to the incoming air.
Your needs are probably simpler. Whatever you do, I would make sure that the incoming air is filtered.
-HF