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solarusmc

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Posts: 180
Reply with quote  #1 
Make sure to really think out your tubing when building a hot air collector so that you are balancing out your cold air tubes to help stop/trap cold air from retuning into your home when sun goes away.

I used inexpensive suit coat lining material when building backdraft dampers for my collectors.
It's $7.99 yd. at Joanne's Fabrics in Rhode Island // Easy to work wtih and stops 99% of all drafts normally caused by hot air collectors.

This PDF will show you how to build your own.pdf DIY–Backdraft-Damper.pdf     


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Pat B. Warwick, Rhode Island Rest Assured! Comments and/or suggestions I make here at the forums on 'your' projects as well as my own have all been carefully and scientifically calculated by the 'seat of my pants'

gbwillson

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Reply with quote  #2 
Pat-

I went to JoAnnes Fabric and they were way understaffed. two people cutting and 12 people waiting their turn. I asked at the counter if they could show me what I'm looking for so I could wait in line and I was verbally attacked by the people waiting. I found some fabric liner designed for clothing. It's a rayon blend. It's very light and would drape and fall well. But this is certainly not anything that is going to stop the breeze I could blow right through it. What is your material made from?


Greg in MN
solardan1959

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Reply with quote  #3 
Greg,
   What were you thinking son, trying to get between a woman and her fabric, (or chocolate, or ice cream), is a dangerous thing.  You need a wife so she can "train you properly" [smile]
   Then of course there may be issues with the ten foot collector in the yard......
Dan
solarusmc

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Reply with quote  #4 
GB

It's just suit coat or winter coat 'inner' lining material..
Wish I had the code number to give you.

There's racks of lining material and some of it is thicker then others.

The stuff I got you could hardly blow threw it yet it collapses beautiful when the fan shuts down and opens wide open when the fan turns on.

I actually put a damper in the supply and return pipes just cuz they're dirt cheap to make.

and I'm with Dan GB..
heck you're lucky you didn't get sewed to the wall or something over there with all those women.

If you guys want, I'll go over there tomorrow morning and get the actual code or 'lot' number of the fabric I purchased. I know right where it's located in the store.

I'll wear an old white bun wig we used one year for Holloween and carry some of my wife's knittn needles to blend right in.. Just let me know ok?

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Pat B. Warwick, Rhode Island Rest Assured! Comments and/or suggestions I make here at the forums on 'your' projects as well as my own have all been carefully and scientifically calculated by the 'seat of my pants'
brandonm78

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Reply with quote  #5 
Hi, I'm just wondering if you ever happened to get that item # of the damper material? Thank you. Brandon
gbwillson

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Reply with quote  #6 
Welcome Brandon-

I don't have a number, but when I went to the fabric store I asked for suit coat liner. When I asked if there was anything else that would block the wind, I was shown some nylon windbreaker type material. It was too stiff. There are several colors of coat liner ranging in price from $5.99-$7.99 per square yard. Clearance colors were even cheaper. Some had an anti-static treatment applied for a buck or two more. If the store is a chain, look for coupons, even online. I found one for half price.

Greg in MN[wave]

stmbtwle

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Reply with quote  #7 
I like that setup, thanks!  Never would have thought of it myself.
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Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay
mclark999

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Reply with quote  #8 
Is it silent?
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Denver, CO

Double screen hot air collector
solardan1959

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Reply with quote  #9 
Brandon,  Hancock fabrics had various types of flag material with many levels of stiffness.  I found some real nice water resistant material that was pretty dense but pretty flimsy, (flexible).  Cheap also and with a coupon it was 3.99ish a yard or less.

Another project I have to get to....
Dan
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