Frost King HC3A Automatic Electric Heat Kit Heating Cables, 3 Feet, Black

Easy to install. Works great. I installed these on the supply lines to my sinks in a new bathroom I had built out in an unfinished attic space at my vacation lake house in NC. The plumbers ran those lines on a day I was not there as I would have preferred that they run them under the floor because the attic gets very cold in the winter and the house sits empty most of the winter. I was concerned the supply lines would freeze and rupture, flooding the house. So far, I’ve made it through the coldest part of the winter without any issues. I also installed older Wi-Fi enabled thermostats to monitor the attic spaces. They did get well below freezing on a few days so am glad I installed these!

Works as advertised. No frozen pipes where the cable is wrapped.

Fantastic product, works as described. Helps keep my water manifolds at a site less prone to freezing when the weather gets colder. Love that they have a power indicator when in use and the thermostat seems to be spot on when I've been using it with our plumbing.

I’ve used these before very reliable and works great but had to return this one I ordered the wrong size my bad

Very good heat kit. I used to use the Frostex heat kit, used them for many years, but there expensive and their controller cannot get wet. This Frost King is waterproof which is a big plus. This Frost King does Not have an adjustable wire length, you could cut the Frostex to fit but not these Frost Kings, so get an accurate measurement of what length you need. I had installed a 12-foot Frost King but it turned out to be too long, I had to remove it and install this 9 footer.

I live in Frazier Park and my plumber said I need to replace my heat strip on my water line. It was easy to install and is a good quality product, I recommend buying it and it is reasonably priced. I have used other Frost King products and I have never been disappointed .

I bought this about a year ago due to a recurring freezing pipe in our basement when the outdoor temperature is in the single digits (or less). I finally got to try it out with this past week's (Jan 2026) negative degree temperatures in western PA. It worked GREAT! Our pipes did not freeze and the cable did not get hot - just warm.

I use these on all the lines I have externally out of ground. Than even the ones I put underground. Wrapped in tubing, like pool noodles. I have not had one of these fail on me yet. I have literally got at least 5 of these over the last 4 years. Living in a mobile home you always have frozen lines being from Ohio. These have saved me lots of hours, and heartache having to unfreeze water lines. Thank you!!

I ordered 3 of these. Be sure to plug them into a GFCI plug in. Regular plug in can be dangerous and a fire hazard. Best to get a qualified electrician to install it. People think they can do it then Ka Boom!

I've been using this to prevent our sump pump discharge water from freezing in the outdoor section of the pipe and so far it hasn't let me down. The built in thermostat automatically turns on the heater when the temperature drops to almost freezing. This item is well worth the cost for the peace of mind it provides in knowing the water discharge pipe will remain open and the water won't back up into the sump pump.

Fait la job

The light is on but not cold enough to see if it is working

but since length matters, had to return it.