Hi.I have a 30'x40' workshop.currently it is floor heated with a 40 gal. nat. gas water heater.I have 7' W x14' H south facing space which I would like to use for a solar collector.Having observed how hot water gets in a garden hose in summer would it work to build a collector with black ABS headers and black plastic pipe in between every 3 or 4 inches.seems it would be simpler than all these aluminum fins etc.that are being used.Front of collector would be glazed in and rear would either be black or foil reflective.Circulation would be with existing pump.This is in northern BC Canada.Any pros or cons.Could cover in summer to avoid over heating.
Shop floor heat
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This is how it's done:
http://www.builditsolar.com/Projects.../solarshed.htm
Great article. And an updated build here
Detailed description of a homemade solar space heating and water heating system that is very simple to build.
Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister -
I think I'd look at a different material. The heat rating under pressure for ABS is only 100F. That's not high enough for a solar collector.
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OP: See a website called : builditsolar.com. Lots of DIY projects. Start small and read/learn before you build. Solar thermal can/will work in situations such as you describe, but the results will probably be less than you expect or hope for, at least initially. Still, output can be perhaps measureable, if less than cost effective, if partially for the fun of learning. Having dome a fair amount of such stuff a long time ago, a hint: Keep the designs flexible and serviceable - that will save time on the way to a workable design.
Good luck.Comment
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Is there any sunlight in winter? Like around here it'd be completely worthless to try and get heat from.Comment
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If "under pressure" meant zero psi gauge everywhere you could not run a vertical pipe in a thermosiphon system or have a panel tilted from horizontal.
Pressure combined with temperature can cause particular problems at a point where barb type couplings are used, so keep that mind when designing.
SunnyBoy 3000 US, 18 BP Solar 175B panels.Comment
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Lots of sunny days but short days.I built this collector last winter but can't get any heat out of it. No problem getting 40 Celcius inside it in -10 but can't get the heat to move.even set up a fan to pull air through it . 2016-09-13 08.29.00.jpgComment
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Last edited by Fecteve; 10-01-2016, 04:45 AM. Reason: Do not remove my link. It is relevant to the post.Comment
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