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Bert

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Reply with quote  #21 
Our house is odd in a sense. The south side definitely is nice and warm when the sun is out. When not, it's the coldest room.
I think it's because it's been added onto throughout the years. The furnace has a hard time getting any air pressure to this room. They probably didn't size the furnace and ductwork right.


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Bert K.
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gbwillson

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Reply with quote  #22 
Have you looked at a duct booster fan? That's what they were designed for. They won't move much air on their own, but if the air is already in motion, it helps increase flow a great deal.

Greg in MN
Bert

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Reply with quote  #23 
Greg,

I thought about them, but heard that they don't work very well. May give it a try though.

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Bert K.
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gbwillson

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Reply with quote  #24 
I used one for my mom's old house to move more air to the second floor. You could try one and if it doesn't work, take it back.

Greg
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Reply with quote  #25 
Quote:
The south side definitely is nice and warm when the sun is out. When not, it's the coldest room.


Bert, what is the specification of your windows ?
For south-facing windows, they do not look very big: what is the percentage of window area, to floor area ?

G_H

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Bert

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Reply with quote  #26 
The south side windows are about 32 sq ft total in the family room. Then there's one small window in the bathroom and another in the garage.

The family room is about 360 sq ft.

There are three other windows in the family room not on the south side.
Double pane windows.

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Bert K.
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Bert

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Reply with quote  #27 
Greg

I took your suggestion about the vent booster. Got this one;
http://www.amazon.com/gp/product/B001WT11Y2?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

EDIT: I bought it from Amazon. Not sure why my link keeps changing to Lowes. LOL

It definitely helped. The airflow is easily twice as before. Probably triple. I can feel the heat come out. It's a bit noisy on high,

One of the reviewers suggested to cut the back vents out. I did and it is quieter.
fan1-640.jpg

I noticed that it had 12v fans in it, so I used my volt meter and the output from the transformer was DC. It measured 20v.  The transformer said that it was 12v DC.

I eliminated the transformer by hooking it up to my solar/battery source. It works great.  

Thanks for the suggestion. It's a few degrees warmer in her already. Haven't had it very long so time will tell.
fan2-640.jpg


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Bert K.
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KevinH

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Reply with quote  #28 
Sounds like the AC adapter is not regulated.  With no load it would measure higher than what the label says.  With the load from the fans it would drop closer to 12V.

Is it turning on based on sensing warmer air?

Kevin H
MN
Bert

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Reply with quote  #29 
Yes. There's a knob you turn to adjust when it comes on by temperature. It needs a better controller though. It can cycle on/off a bit when it first comes on and when it goes off.
All in all pretty decent though.

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Bert K.
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gbwillson

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Reply with quote  #30 
Hi Bert-

I was thinking more of the inline booster fan like the one people sometimes use for solar heaters, like this:

http://www.menards.com/main/heating-cooling/ductwork/duct-boosters-accessories/suncourt-air-boosting-6-round-in-line-duct-fan/p-1444444198431-c-6872.htm?tid=6273109403964663284

But the main thing is that it works! I also like the different fan speeds and temp controls better. It gives you more flexibility, as opposed to being on or off. Being 12v fans, I bet you could upgrade the fans, if needed.

Greg in MN



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