Pipe Heat Tape Too Long

[Lakee911]

I have about 16in of a pipe that is prone to freezing. Beyond that length, the pipe is not accessable. I bought a pipe heat tape with a thermostat that plugs in and keeps it warm when it's below freezing. Problem is that it's 36in long (minimum length) and it says not to cut it, spiral it or double back on it. What should I do with the extra 20in of wire? Just hang it somewhere in air? Surrounding area is wood. It's only a few watts.

Thanks,
Jason

[rshackleford]

Try a system like Frostex. This a build your type kit that allows you to cut the length to fit. See link below.

http://www.tycothermal.com/usa/english/heat_tracing/applications/residential/pipe_freeze_protection/ProductDetails.aspx?pcg=1114&nm=Raychem+Frostex+Plus

[asayers]

I have a shower in an exterior wall. I am currently putting it in place as part of a remodel and have no other place to put it. Can I put heat tape within the wall?

[Bob NH]

IF IT'S COPPER PIPE:

I would start the free end at the point where the pipe enters the inaccessible cold area and would spiral it so there is at least 3/8" of clear space between the spirals. If you can fish an inch or so into the inaccessible space, I would do that. Attach it to the pipe with a Ty-Rap or some good tape.

Then spiral it for the length of the accessible pipe (with 3/8 spacing) and fasten it at the end of the 16" length of pipe. Depending on the diameter of the pipe and the width of the tape you may not have much left. Increase the spacing if necessary to get full coverage.

You usually want the thermostat in contact with the pipe. You may need to run it straight over the length of the thermostat to get the thermostat in contact with the pipe if that is the instruction.