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<font face="Times New Roman, Times, serif">With heat tape I'd be
worried about uneven heating of the module surface and possible
cracking.<br>
<br>
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.<br>
<br>
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.<br>
<br>
Hilton<br>
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<pre class="moz-signature" cols="72">--
Hilton Dier III
Renewable Energy Design
Partner, Solar Gain LLC
453 East Hill Rd.
Middlesex, VT 05602
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