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kzz1king

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Posts: 7
Reply with quote  #1 
Here are some pics of my 32" x 36' collector that heats my garage. I keep the 24 x 32 garage heated to a minimum of 42 F. The collector cut my bill in half for the past 2 years when it was 32" x 24'. I added the section below this fall and changed my ducting some for increased airflow. I am getting a 20 degree rise with a lot of cfm. I am not really hoping to lower the fuel bill much more but do plan to raise the mininum temo to about 50 this winter. 
DSCN2822.JPG  DSCN2855.JPG  DSCN2857.JPG 
The above pic shows the backdraft preventer standing out. It is a vinyl notebook protecor with a thin piece of wood and some magnets on the bottom to seal it to the blower door. It is 2 squirrel cage blowers installed in series. Thanks for looking.
Wayne

solardan1959

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Reply with quote  #2 
Wayne,
   Looks like a nice collector but it sure don't look 36' or even 24' in the picture.  What are we missing? How about some more details, looks like a downspout, is this one section of twelve feet and now you have three? Looks more like what I need for my pole barn.  Also, where are you located so we have a better idea of your heating needs?.
   What is this neat looking rounded wooden building?
Dan
kzz1king

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Reply with quote  #3 
Yes, the collector pic is the 12' middle section. I had originally built the 24 footer in 2 12' sections with a plenum on each end so that I could expand if needed. I used it for 2 years and when I installed new steel roofing this summer I decided to expand to 36'. I have no pics of construction of the original. You can see on the outside pic of it mounted on the roof as it sits now. 

I am in North Dakota, about 55 miles south of the US/Canadian border. The first winter I used it it was extremely mild for us. The second winter was colder than average but not extremely bad.

I will post some pics of the building you mentioned. It is an old town hall that is now the home to my high school shop class students. It is a great building.
Wayne
kzz1king

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Reply with quote  #4 
I see I forgot to attach my photo of it on the roof! Here is some before the expansion and of the shop.
164027_186242524738227_385221_n.jpg 164027_186242528071560_5105612_n.jpg 385076_307224522640026_788266145_n.jpg 

solardan1959

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Reply with quote  #5 
kzz1king,
   Hope you have good mounts, Looks like a big sail up there, and don't they say something like "the wind never stops in North Dakota"?  I probably would have mounted it further down the slope of the roof to block some of the wind but it already lasted one year.  Nice job and that's a lot of barn to heat up.
Dan
kzz1king

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Reply with quote  #6 
I had to stay higher on the roof because the garage in north on my 2 story house. The barn is not the building I am heating. The barn is where I work and built the panels at. The garage is 24 x 32 and well insulated. It has held up to 2 years of ND winds and has done well so far. Here is a recent pic.

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gbwillson

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Reply with quote  #7 
Nice looking collector! You would benefit from insulating your ducts. With a space that large, every little bit helps.

Greg, MN
gbwillson

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Reply with quote  #8 
I forgot to ask you what kind of air flow you get with two fans? Your output box is large. Are you using furnace fans. If so, that's a lot of electricity and CFM output. I have a furnace fan that I converted into a dust collector. It uses almost 8 amps and 750 watts on high. And you have two of them. I've rigged it so it has 3 speeds.

Greg, MN
solardan1959

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Reply with quote  #9 
Garage, Barn, it did look bigger until you showed the picture with the truck.  Still it is a pretty big space to heat, Not as big as my pole barn but bigger than the workshop I would like to heat to fifty also.  I was barely keeping my workshop above freezing when it got really cold here but most times it's near the low forties.  My workshop is around 18 X 22 and twelve feet high.  It is also insulated but only with about 9 inches of cellulose. I had 96 feet, (3 4X8 panels).  I added 8X8 feet of preheater for this year and might add another before it gets cold.  I kind of want to warm the rest of the barn, total of about 56X32X12 feet high but realize my limitations of about 4 hours a day of sun.  Maybe I should be up un the roof also.
Did the kids help out with your solar project?
Dan
kzz1king

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Posts: 7
Reply with quote  #10 
Greg, the ducts are now insulated. That is a construction photo. I am using a bit of juice but I want to suck as much heat out of them as fast as I can. I should figure the cost but I would most likely not change it anyway.

Dan, the students did help and had/have a lot of questions. I hope to build some for the barn/shop that I teach in some day. I am very well insulated including the slab. I think the slab is what carries me through the night in the first half of the heating season. The furnace does not let it get below 40 but it does not start kicking on untill much later in the saeason. I start using the collectoras early September to build up heat in the floor. I have temps as high as 90 in the building then. Adding an 1 of foam to the insulated garage doors helped a great deal also.
Wayne 
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