On Aug 30, 10:45 am, Clark wrote:
md wrote in news:1188488265.701974.112300
@r29g2000hsg.googlegroups.com:





I want to build a roof deicer. Please don't laugh.

I am looking for a small inline heater that can be exposed to the
elements. It will be installed inline with small copper pipe which
will lie in a roof valley. The pipe will be full circuited with the
lower sections built with flexible tubing; allowing it to snake
thru gutters and drain pipes. I am hoping the circulation will
provide just enough heat to keep the drain open allowing
occasional melt to head for the street.

I suppose this inline heater could be affected with heat tape. The
inline
heater could also be placed under the eves in a protect position.

Ideas?

Just purchase and install a de-icer that is available.

Here's one example:

http://www.aplussupply.com/easyheat/roof_and_gutter.htm

Shop around. Most gutter outfits can install one for you if the deicers are
common in your area.

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I probably will ... but I hear about exposed wires and fires. I
thought the liquid thing was safer.