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What do you recommend to use for a clear glazing?
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SolarInterested: Suntuf is light, very easy to work with (cuts easily with tin snips and drills easily too), tolerates high heat, is strong to the elements,...
Glazing test
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gbwillson: Hi, I did some testing for transmittance on some common DIY solar collector glazing materials. Also included some older Suntuf and twinwall...
How do I turn my fan / pump on and off automatically when the sun is shining?
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moosemagicco: Here are two options: A snap disk fan switch like these for around $6.50: ...
Lightweight Box Construction
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dbc: I'm mostly a lurker, just learning for now until I have time to devote to doing a build. I've seen several comments about people wanting the keep...
New to this: Solar powered pump
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sundug: Hi All, I'm quite new to all things solar, thus I'm hoping someone can offer a bit of advice on what to do next on a hobbyshop project of mine: I've...
Screen materials, alternatives
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stmbtwle: I have been looking around online for material to use as the screen in a ZP collector. I thought insect mesh would be the thing to use but the cost...
12 volt wiring for off-grid home
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tacman7: Hello all, I am at the wiring stage of my off-grid home and am not sure what wire would be most efficient for my application. The entire cabin will...
Can you safely use a motorbike 12V GEL battery in a PV system ?
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stmbtwle: I am trying to set up a PV system that is as cheap as possible. Eventually, my goal is to build IoT functionalities on top of it, using micro...
Craigslist Materials Search List
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jjackstone: As stated previously I am trying to build air heaters for a minimum dollar amount to give away to folks who want to save money on utility bills....
Screen frame made from 1 5/8 stud + track
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Bert: I put together a prototype screen frame, made from 1 5/8 metal stud + track. I was looking for an alternative to the wood or aluminum window screen...
Solar charge controllers
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robertpelletier: I am fairly new to solar power. I have built a system for my medical mobility scooter. The scooter is permanently stored on the lift on my truck. ...
Shade cloth for ZP back screen?
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Bruce: I am in the planning and material acquisition stage of building a 6x12 zero pass air system. I have seen some discussion about shade cloth as an...
silicon o-ring cord for spline in ZP collector?
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rustythread: May be just another example of a dumb question, but has anyone looked at the possibility of using silicon O-ring material in a screen collector in...
Polyiso tube as air duct
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dbc: All, I came up with an idea to replace the long (~ 20 ft.) flexible air duct that connects the input of my 2x16 ZP collector. Referring to this: ...
What type of AC battery charger to charge solar battery bank in the winter?
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stmbtwle: Hi, I'm new to this group and have a question about charging my solar bank. I have 6 trojan 6 volt batteries wired in series and parallel for a 12...
Do I have enough panels to power this pump?
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stmbtwle: Hi there, I'm very new to this so would really appreciate some help. I'm volunteering at a school and we're setting up an aquaponics system and...
Solar Well Pumping Grundfos Versus Lorentz
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GOM: Pro's and Con's of Grundfos and Lorentz well pumps. (Well specs: 105' Static water level, 45' drawdown at 15 GPM Well report attached) ...
Aluminium Insect Mesh
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solardan1959: Good evening, I've been perusing the site looking at the ZP/DP collectors. Being the other side of the pond to you chaps I've been searching for...
Cheap Polyiso Insulation
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gbwillson: I got a couple sheets of damaged 1.55" foil faced polyiso today at Menards for $1 each (regular price $39.99). If your local hardware store has...
Collector fan
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Punky: Was shopping at Menards today and found some inline fans by Suncourt. The 6" ones in the the store were duct boosters rated at free air 160 cfm...
Wire in Collector - Off-Gas?
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gbwillson: What kind of wire do you use in your collectors for sensors, fans and such? Is there any concern that the high temperature can make the wires or the...
Finding local contractors/ end users
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stmbtwle: Hey Everyone- I live in Tampa and haven't really seen much penetration of SOLAR by ANYONE! I would love to start a group or even create a COMPANY...
New style hydronic fins
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SolarInterested: Came across these in a Home Depot ad this morning, seems like they might make the construction of a hydronic collector less labor-intensive. Haven't...
Screens for ZP Aluminum Frames or Frameless
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stmbtwle: There have been some suggestions on here lately about using aluminum screen frames for the zero pass collector. I was wondering would it be strong...
PEX
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stmbtwle: I decided to search for some UK prices for PEX and the first place I have looked at uses the selling point that " Speedfit pipe is cooler and...

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