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#1
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Need advice on sealing glass to a homemade Solar Collector Box
Im making my first Hot Water Solar Collector to go on the roof and
will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. Im going to paint the wooden box , copper tubing roll , and window enclosure frame a flat black using special high temp. paint intended for Solar Collectors . I suspect the temperature of the window enclosure frame is going to get very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? Thanks. |
#2
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Need advice on sealing glass to a homemade Solar Collector Box
On Jan 27, 2:00*pm, " wrote:
Im making my first Hot Water Solar Collector to go on the roof *and will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" *wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. *Im going to paint the wooden box , copper tubing roll , and window enclosure frame *a flat black using special high temp. paint intended for Solar Collectors . *I suspect the temperature of the window enclosure frame is going to get *very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? * Thanks. Since your box is made of 2x6's...water is going to get in. Consider in oyur design & fab allowance for liquid water to escape AND water vapor as well...otherwise you're going to get condensation on the bottom side of the glass which will interfere with the solar collection. cheers Bob |
#3
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Need advice on sealing glass to a homemade Solar Collector Box
On Jan 27, 4:17*pm, DD_BobK wrote:
On Jan 27, 2:00*pm, " wrote: Im making my first Hot Water Solar Collector to go on the roof *and will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" *wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. *Im going to paint the wooden box , copper tubing roll , and window enclosure frame *a flat black using special high temp. paint intended for Solar Collectors . *I suspect the temperature of the window enclosure frame is going to get *very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? * Thanks. Since your box is made of 2x6's...water is going to get in. * Consider in oyur design & fab allowance for liquid water to escape AND water vapor as well...otherwise you're going to get condensation on the bottom side of the glass which will interfere with the solar collection. cheers Bob Do you want to use a thermopane glass? Won't that keep some of the sunlight out, or is the heat net loss enough less to cover the extra sunlight loss? |
#4
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Need advice on sealing glass to a homemade Solar Collector Box
On Jan 27, 8:49*pm, "hr(bob) "
wrote: On Jan 27, 4:17*pm, DD_BobK wrote: On Jan 27, 2:00*pm, " wrote: Im making my first Hot Water Solar Collector to go on the roof *and will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" *wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. *Im going to paint the wooden box , copper tubing roll , and window enclosure frame *a flat black using special high temp. paint intended for Solar Collectors . *I suspect the temperature of the window enclosure frame is going to get *very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? * Thanks. Since your box is made of 2x6's...water is going to get in. * Consider in oyur design & fab allowance for liquid water to escape AND water vapor as well...otherwise you're going to get condensation on the bottom side of the glass which will interfere with the solar collection. cheers Bob Do you want to use a thermopane glass? *Won't that keep some of the sunlight out, or is the heat net loss enough less to cover the extra sunlight loss? Bob- Good catch on the thermopane glass.....I totally missed that. OP- I would suggest sizing your collector box such that "free" ancient (as in no special sunlight transmission inhibiting glass) sliding glass door panels could used. If the frames are aluminum (check with a magnet) you can use wood working tools (saws, drills, etc) to modify the frame. cheers Bob |
#5
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Need advice on sealing glass to a homemade Solar Collector Box
On Jan 28, 5:59*pm, DD_BobK wrote:
On Jan 27, 8:49*pm, "hr(bob) " wrote: On Jan 27, 4:17*pm, DD_BobK wrote: On Jan 27, 2:00*pm, " wrote: Im making my first Hot Water Solar Collector to go on the roof *and will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" *wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. *Im going to paint the wooden box , copper tubing roll , and window enclosure frame *a flat black using special high temp. paint intended for Solar Collectors . *I suspect the temperature of the window enclosure frame is going to get *very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? * Thanks. Since your box is made of 2x6's...water is going to get in. * Consider in oyur design & fab allowance for liquid water to escape AND water vapor as well...otherwise you're going to get condensation on the bottom side of the glass which will interfere with the solar collection. cheers Bob Do you want to use a thermopane glass? *Won't that keep some of the sunlight out, or is the heat net loss enough less to cover the extra sunlight loss? Bob- Good catch on the thermopane glass.....I totally missed that. OP- I would suggest sizing your collector box such that "free" ancient (as in no special sunlight transmission inhibiting glass) *sliding glass door panels could used. If the frames are aluminum (check with a magnet) you can use wood working tools (saws, drills, etc) to modify the frame. cheers Bob- Hide quoted text - - Show quoted text - The window is going to be special ordered with regular glass...not low 'e' or tinted . I want thermopane glass so heat is kept in the box more instead of escaping. I plan on sealing the vinyl window frame to the wooden box real well , but I will put in a couple drain holes in the box in case moisture condenses in it (which I doubt will occur) . |
#6
Posted to alt.home.repair
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Need advice on sealing glass to a homemade Solar Collector Box
On Jan 28, 6:24*pm, " wrote:
On Jan 28, 5:59*pm, DD_BobK wrote: On Jan 27, 8:49*pm, "hr(bob) " wrote: On Jan 27, 4:17*pm, DD_BobK wrote: On Jan 27, 2:00*pm, " wrote: Im making my first Hot Water Solar Collector to go on the roof *and will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" *wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. *Im going to paint the wooden box , copper tubing roll , and window enclosure frame *a flat black using special high temp. paint intended for Solar Collectors . *I suspect the temperature of the window enclosure frame is going to get *very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? * Thanks. Since your box is made of 2x6's...water is going to get in. * Consider in oyur design & fab allowance for liquid water to escape AND water vapor as well...otherwise you're going to get condensation on the bottom side of the glass which will interfere with the solar collection. cheers Bob Do you want to use a thermopane glass? *Won't that keep some of the sunlight out, or is the heat net loss enough less to cover the extra sunlight loss? Bob- Good catch on the thermopane glass.....I totally missed that. OP- I would suggest sizing your collector box such that "free" ancient (as in no special sunlight transmission inhibiting glass) *sliding glass door panels could used. If the frames are aluminum (check with a magnet) you can use wood working tools (saws, drills, etc) to modify the frame. cheers Bob- Hide quoted text - - Show quoted text - The window is going to be special ordered with regular glass...not low 'e' *or tinted . * I want *thermopane glass so heat is kept in the box *more instead of escaping. *I plan on sealing the vinyl window frame to the wooden box real well *, but I will put in a couple drain holes in the box in case moisture condenses in it (which I doubt will occur) .- Hide quoted text - - Show quoted text - Use a j-shaped drain. That way water will hold in the drain to keep air flow out, but will still drain if water builds up. But, watch out for condensation building up inside the unit; You may want to have the whole thing airtight. |
#7
Posted to alt.home.repair
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Need advice on sealing glass to a homemade Solar Collector Box
On Jan 28, 6:24*pm, " wrote:
On Jan 28, 5:59*pm, DD_BobK wrote: On Jan 27, 8:49*pm, "hr(bob) " wrote: On Jan 27, 4:17*pm, DD_BobK wrote: On Jan 27, 2:00*pm, " wrote: Im making my first Hot Water Solar Collector to go on the roof *and will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" *wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. *Im going to paint the wooden box , copper tubing roll , and window enclosure frame *a flat black using special high temp. paint intended for Solar Collectors . *I suspect the temperature of the window enclosure frame is going to get *very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? * Thanks. Since your box is made of 2x6's...water is going to get in. * Consider in oyur design & fab allowance for liquid water to escape AND water vapor as well...otherwise you're going to get condensation on the bottom side of the glass which will interfere with the solar collection. cheers Bob Do you want to use a thermopane glass? *Won't that keep some of the sunlight out, or is the heat net loss enough less to cover the extra sunlight loss? Bob- Good catch on the thermopane glass.....I totally missed that. OP- I would suggest sizing your collector box such that "free" ancient (as in no special sunlight transmission inhibiting glass) *sliding glass door panels could used. If the frames are aluminum (check with a magnet) you can use wood working tools (saws, drills, etc) to modify the frame. cheers Bob- Hide quoted text - - Show quoted text - The window is going to be special ordered with regular glass...not low 'e' *or tinted . * I want *thermopane glass so heat is kept in the box *more instead of escaping. *I plan on sealing the vinyl window frame to the wooden box real well *, but I will put in a couple drain holes in the box in case moisture condenses in it (which I doubt will occur) .- Hide quoted text - - Show quoted text - Wood absorbes moisture, dry in your home its around 5-11%, outside maybe 15% dry, on a roof it might be higher and transmit in and condense, even oil paint is rated for moisture permeability, Sherwin Williams will get you the info specs on their stuff, I used to have their spec book, maybe its online. Sheet metal is best, but if wood is used paint the whole box. SW has good products and will help at the tech level so you can seal the wood completely, Ive seen collectors all fogged up. Get glass with a warranty on the seal and fogging, my local does it. alt.energy.homepower might have panel makers, Read the "Born On" date on the silicone sealant you buy, it degrades to sometimes worthless in 6 months, if its an issue finding new contact manufacturers like Dow, use what they recomend to clean before caulking. The high heat and humidity will stress everything. One consideration you may not have though of I can think is wood expands, and you will get it real hot, that might ruin the glass seal fast as the frames expands and contracts daily, there again Metal is best, and sheet metal is cheap. On metal paint should last much longer, it will be what 160f in the box? think of the wood expanding- contracting every day. Ive seen doors move 1/16th" a day, every day, painted black and they wont get as hot nor were they Flat Black which absorbes more energy. But maybe im wrong im just thinking |
#8
Posted to alt.home.repair
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Need advice on sealing glass to a homemade Solar Collector Box
On Jan 28, 4:24*pm, " wrote:
On Jan 28, 5:59*pm, DD_BobK wrote: On Jan 27, 8:49*pm, "hr(bob) " wrote: On Jan 27, 4:17*pm, DD_BobK wrote: On Jan 27, 2:00*pm, " wrote: Im making my first Hot Water Solar Collector to go on the roof *and will be using a 60' roll of 1/2" i.d. Copper Tubing in a 2x6" *wooden box , with a Thermopane Window that comes in a vinyl enclosure frame to sit on top of the box. *Im going to paint the wooden box , copper tubing roll , and window enclosure frame *a flat black using special high temp. paint intended for Solar Collectors . *I suspect the temperature of the window enclosure frame is going to get *very very hot in the summer , so, im wondering what sort of adhesive or weatherstripping I should use to seal the window enclosure frame to the wooden box that will hold up very well in extremely hot temps and moisture ? * Thanks. Since your box is made of 2x6's...water is going to get in. * Consider in oyur design & fab allowance for liquid water to escape AND water vapor as well...otherwise you're going to get condensation on the bottom side of the glass which will interfere with the solar collection. cheers Bob Do you want to use a thermopane glass? *Won't that keep some of the sunlight out, or is the heat net loss enough less to cover the extra sunlight loss? Bob- Good catch on the thermopane glass.....I totally missed that. OP- I would suggest sizing your collector box such that "free" ancient (as in no special sunlight transmission inhibiting glass) *sliding glass door panels could used. If the frames are aluminum (check with a magnet) you can use wood working tools (saws, drills, etc) to modify the frame. cheers Bob- Hide quoted text - - Show quoted text - The window is going to be special ordered with regular glass...not low 'e' *or tinted . * I want *thermopane glass so heat is kept in the box *more instead of escaping. *I plan on sealing the vinyl window frame to the wooden box real well *, but I will put in a couple drain holes in the box in case moisture condenses in it (which I doubt will occur) . When you state "thermopane"...do you mean two layers of glass with a space between? Depending on the operational temperature of the water in the collector tubes (pool heater? domestic water? living space?) ....double pane may actually reduce heat gain Please post photos of unit after a few days of sun after the rain stops. My money is on water vapor condensing on the innermost surface of the glass. BTDT cheers Bob |
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