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ot - whole house fan

K

Korny

Well-known Member
I have a horizontally mounted whole house fan, Wife decided to remove the frame (shutters) to paint - now the shutters will not open when turning the fan on. I removed the paint, oiled the hinges and have the spring adjusted as tight as it will go - still the shutters will barely open. If I force them open them with the fan running they will stay open. Any ideas?
 
that is what I was thinking too - so I used oven cleaner and power washer and removed the paint - including most of the original paint, so the shudders should be even lighter now but it still didn't help.
 
Our whole house fan won't open the shutters when its belt stretches and starts slipping - -usually too little of slip top hear.
Or, any chance your airflow is bypassing the shutters, i.e., blowing back into house/attic?
 
If one has a gas or oil fired furnace. You can switch to 'Fan' (without the burners coming on), the result is a 'whole house fan'. Just sayin.
 
considered that, made sure I had it tight up against the ceiling, dang thing worked flawlessly until it was removed for the painting.
 
Doesn't seem like it would make a difference, but are you sure you oriented the shutters the right way when you re-installed it?
 
I think somebody (won't say who) messed with the tension spring (drastically) so will install it for the thousandth time tomo. Thanks for all the suggestions.
 
Agree with that. Down here we call them attic fans as they vent into the attic. When I built my house (by my own hand) in '79 I had no AC and the attic fan was THE cooling mechanism for the house. I had to mount the shutters TO the ceiling as I used pre-formed trusses for the rafters and I didn't want to cut into a 24" spaced truss to install a 36" fan. The fan sat on the rafter and I build boxes for both to make an air plenum. Took 3 years to get the money to put in a 2 ton window unit and that was used, for $135 and too heavy for one person to lift. Wife was a good trooper on that. Never griped about being hot.

I moved to the country and built the house as self sufficient as I could after reading Howard Ruff's "How To Survive the Coming Hard Times". Got-er all done and sat down waiting for the sky to fall................never did and I was happy about that. Course I didn't have the $10k he said that you needed to have stashed away in gold and silver coins. The Krugerrand was the Gold of choice at the time; one Oz of 99.99999 pure gold, mined and minted in S. Africa.
 

A horizontal whole house fan with shutters ? What does that look like and how is it set up and ducted ?
Around here a forced air system is a centrifugal fan as part of a furnace, often with an AC evaporator coil. Using both supply and return duct work to every room in the home/building.
 
(quoted from post at 08:42:22 07/01/15)
A horizontal whole house fan with shutters ? What does that look like and how is it set up and ducted ?
Around here a forced air system is a centrifugal fan as part of a furnace, often with an AC evaporator coil. Using both supply and return duct work to every room in the home/building.
Click to expand...
ts just like a big shop fan that's laid down horizontally. The shutters are in the ceiling and open when the fan is turned on. It draws air from the house into the attic. I have one in my house. In the spring and fall I use it. Open the windows and turn it on. It creates a pretty good breeze throughout the whole house. Also good for clearing out smoke when the wife burns dinner!
 
(quoted from post at 12:55:09 07/01/15)
(quoted from post at 08:42:22 07/01/15)
A horizontal whole house fan with shutters ? What does that look like and how is it set up and ducted ?
Around here a forced air system is a centrifugal fan as part of a furnace, often with an AC evaporator coil. Using both supply and return duct work to every room in the home/building.
Click to expand...
ts just like a big shop fan that's laid down horizontally. The shutters are in the ceiling and open when the fan is turned on. It draws air from the house into the attic. I have one in my house. In the spring and fall I use it. Open the windows and turn it on. It creates a pretty good breeze throughout the whole house. Also good for clearing out smoke when the wife burns dinner!
Click to expand...

The fan discharges into the attic or through a duct to the outdoors ?
Anything here between the attic and living area of the house such as an attic access door. Needs insulation or frost will form on the warm side of the door.
 
(quoted from post at 17:36:09 06/30/15) If one has a gas or oil fired furnace. You can switch to 'Fan' (without the burners coming on), the result is a 'whole house fan'. Just sayin.
Click to expand...

That is not the same thing. A "whole house fan" removes air from the living area into the attic, then out to the atmosphere through attic vents. Open the right combination of windows and you get very good airflow through the area you want to vent/cool. A furnace fan will just circulate air through the living area.
 
The fan mounts horizontal to the ceiling joists or some put it vertical in the Gable end of the house. If you have it in the gable,
obviously you have no other ventilation in the attic which is not the way you want to do it; for obvious reasons. Obviously you need
adequate gable venting to allow for adequate circulation. The grille consists of aluminum louvers like windows in Florida except
windows are made of glass and are hand cranked open. These louvers are light weight with a light duty closure spring that are sucked
open by the fan turning. My fan is operated by a 1/3 hp electric motor via a V belt. I changed out my V belt at 30 years......didn't want
to take a chance on it slipping.........
 
Good point but down here we don't use an attic fan when it's cold outside; spring, summer, and fall only. Besides, yes you insulate the
attic side of the attic access apparatus, being it a panel or door.
 
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