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Aluminum Downspout Hot Air Solar Collector
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colinmcc: The aluminum downspout collector was my first hot air project. The advantages it offers are that it works well in a horizontal configuration and it...
The Zero Pass Hot Air Collector
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Irishvoyageur: The Zero Pass Hot Air Collector is a newer brainstorm that a couple folks here on the Simply Solar forum are working on, so we've started a new topic...
Double Layer Screen Solar Hot Air Collector - The Reference Standard!
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stmbtwle: My friend Gary Reysa, creator of the website Mecca for all things solar, http://www.builditsolar.com and I set out to do some side by side...
The Empty Black Box Solar Hot Air Collector
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Garage_Hermit: The empty black box solar hot air collector is simply that - an empty black box. We wanted to see how much adding a heat absorber (which is just...
Backpass Solar Hot Air Collector
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gbwillson: With side by side testing in mind, Gary and I originally planned to make the backpass our reference standard, but when we started testing, we found...
Vented Soffit Solar Hot Air Collector
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ananthapriya: The vented soffit solar hot air collector works very well, almost as well as the screen design. It is more expensive to build than the screen and...
Polyiso without foil
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gbwillson: Hey all, I have a good local source for polyiso but it's not the foil backed type. Is this okay to use? This will be for a triple layer...
A heating system that heats air in buildings using solar radiation
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SolarInterested: https://www.solardaily.com/reports/The_effectiveness_of_a_heating_system_is_validated_heating_air_from_solar_radiation_999.html Excerpt: The...
Pros and Cons of various frame materials for solar hot air collector
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SunFun: I'm going to be building 2 new collectors this fall and am interested in hearing what other builders have used for the frame of their collectors. ...
collector done (pictures) - low temps! first day!
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gbwillson: so I just dove in and did this. so many things going on, and far from perfect. today was my first day running it. I was pretty excited. I got a...
new collector
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defer12: Hi All I am making a 4x8 collector in Madison, WI and had a few questions. I wasn't seeing the answers on the forum. I am very excited about this...
aluminum downspout comparisons
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apollo: I have found aluminum downspouts already factory-coated in a flat black paint. Anything that will keep me from having to use a spray can is a plus....
Improve air flow
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Bruce: Hello, I have a 1x4 meters (3.2x13 feet according to Google) ZP collector which is running too hot now in Spring. That means that I risk melting the...
4" dryer duct with reflectors.
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gbwillson: Well i finally joined this group and i have to say there are a lot of great ideas. I have all ready picked up some good ideas for my situation here...
Air heater questions
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Kostika: Hello, i am new to solar projects. I would like to build an aluminium screen solar air heater. I really need to know how many screen layers should...
Finally built my collector
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gbwillson: I started reading this site about 2 years ago and bought most material then to build a collector. However I am renovating the house where the panel...
4 5/8 inch deep collector
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johnfmonroe: In my thread for the 4x11 collector, some of us were discussing the depth limitations of 3 5/8 inch metal stud track as a frame material. One...
80s house with passive solar air heater - need info!
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solarn00b: Hi All, Excited about my first post and picking everyone's brains. We have a house with passive solar air heater built-in. The unit faces South...
External insulation
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HauteGaronne: Here in France I can't find polyiso or similar insulation capable of standing the high temperatures. I therefore wonder if it would be possible to...
PV Powered DC Fan for Hot Air Collector
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dbc: Here is a concept to run a hot air collector fan off a 12V PV panel: The PV panel could be mounted next to the collector. The whole...
Drainpipe Collector Question
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gbwillson: I'm really partial to drainpipe collectors, I guess because they're so elegantly simple and work really well even though not to the efficiency of the...
Glazing gasket recommendations
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gbwillson: I am building a long zero pass SAH and will soon be adding the glazing (twin wall 8mm polycarbonate). I saw a post where someone used silicone to...
New to this and need as much advice as possible on a 4' x 24' roof mounted horizontal 3 screen collector
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Bruce: Hi all, I've been lurking for quite a while and have an idea of what I want to build but am confused about certain things. I am in southern New...
Double Pass Solar Air Heater with fins and coarse metal screen
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Irishvoyageur: I am planning building a long narrow SAH this fall that will be placed under my porch windows. It will be about 2.5 ft x 18 ft. I am leaning towards...
Fan recommendations
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gbwillson: I'm looking for a 12 volt fan that I can drive a 4 inch round duct to move air from one room to another. The duct will be about four feet long with...

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