On Jan 29, 12:21*am, DD_BobK wrote:
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- Hide quoted text -

- Show quoted text -

Thanks everyone for the tips and considerations. Ill take precautions
on the box being airtight and will coat the wood with a moisture
barrier coating of some sort. Once i get this built and in
operation, ill be posting some results .