[RE-wrenches] Heat Tape

Drake drake.chamberlin at redwoodalliance.org
Sat Jan 5 09:13:43 PST 2013


I think modules have uneven heating whenever snow is melting off, 
with some of the module covered with frozen snow and adjacent 
portions of the module exposed to direct sunlight.

At 03:53 PM 1/3/2013, you wrote:
>With heat tape I'd be worried about uneven heating of the module 
>surface and possible cracking.
>
>I have toyed with the idea of running a length of 2" or 3" conduit 
>under the bottom of the modules on my shop roof. It would be capped 
>on the end and have 3/8" holes drilled in it every foot. It would 
>lead inside the building to a simple blower on a timer. The heat 
>would be even and gentle.
>
>I've noticed that if I can just clean off the bottom foot or so of 
>the array the heat gets up under the snow the whole mass comes down 
>on the first sunny day. An hour of warm air might jump start the process.
>
>Hilton
>
>--
>Hilton Dier III
>Renewable Energy Design
>Partner, Solar Gain LLC
>453 East Hill Rd.
>Middlesex, VT 05602
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