HEATIT 3JHSF 100 ft
A low-cost self-regulating pipe cable with a thermostat, for long runs of pipe or an RV water line.
Amazon $71.99$71.99
100 ft$0.72/ftSelf-reg.
A heat cable is a resistance wire in a weatherproof jacket that plugs into an outlet and warms whatever it is laid against. Roof and gutter kits zigzag along the eave and run through the gutters and downspouts, so meltwater has a path off the roof instead of refreezing into an ice dam. Pipe cables run along a water line under insulation and keep it above freezing. These rankings cover plug-in kits and cut-to-length cables for houses, cabins, barns and mobile homes, from Easy Heat, Frost King, HEATIT, WarmlyYours, Radiant Solutions, Raychem, Wrap-On, VEVOR and others. Snow-melting mats, driveway and floor-heating cable and contractor-only heat trace are left out.
Heating type is the first choice. A constant-wattage cable puts out the same heat along its whole length all the time. It is the cheap option, but it must never touch or cross itself and it can’t be cut. A self-regulating cable turns its own output up as it gets colder and down as it warms, so it can overlap, spiral around a valve and often be cut to length. It costs more per foot.
Length is the second. Roof kits come in fixed lengths and can’t be shortened, so measure the eave, gutters and downspouts first and round up. Pipe cables are either pre-assembled to a length or sold as a reel that you cut and fit with a plug kit.
Power matters before you plug in. These cables plug into an ordinary 120 V outlet, and a long roof kit can draw 1,000 W or more, a large share of one circuit. Most makers say to use a GFCI-protected outlet, and a few build ground-fault protection into the plug.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Top Picks
VEVOR Self-Regulating Pipe Cable 100 ft
The cheapest way to put self-regulating cable with a thermostat on 100 ft of pipe. It carries no UL, ETL or CSA listing.
Amazon $57.90$57.90
100 ft$0.58/ftSelf-reg.
Shop by Use
Roof & gutter
12 rankedPlug-in heat cable kits that clip along a roof edge and run through gutters and downspouts to keep a meltwater path open and stop ice dams forming.
Top rated: HEATIT 8JHSF 50 ft $62.99
Pipe freeze protection
10 rankedHeat cable and heat tape that runs along or inside a water pipe to keep it from freezing.
Top rated: HEATIT 3JHSF 100 ft $71.99
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Best Roof and Gutter De-Icing Cables
- HEATIT 8JHSF 50 ft#1 of 12Full review
A short self-regulating cable with a thermostat, for one gutter run or a few pipes. Buy clips separately for roof use.
Amazon $62.99$62.9950 ft$1.26/ftSelf-reg. - Easy Heat ADKS-1000 200 ft#2 of 12Full review
A long Easy Heat kit for a full roof edge with gutters and downspouts, at one of the lowest prices per foot here.
Amazon $121.90$121.90200 ft$0.61/ftConstant - Eastrexon 100 ft Roof De-Icing Kit#3 of 12Full review
A low-cost self-regulating roof kit with clips in the box. The listing gives no safety listing or warranty.
Amazon $104.99$104.99100 ft$1.05/ftSelf-reg. - HEATIT HIRD 240 ft#4 of 12Full review
The cheapest way per foot to cover a long roof edge with a plug-in kit. Check that the outlet circuit has room for it.
Amazon $142.99$142.99240 ft$0.60/ftConstant - Easy Heat ADKS-500 100 ft#5 of 12Full review
The best-value 100 ft roof kit here, from a long-running brand with a published listing and warranty. Plug it into a GFCI outlet on a shingle roof.
Amazon $66.99$66.99100 ft$0.67/ftConstant
Best Pipe Heat Cables
- HEATIT 3JHSF 100 ft#1 of 10Full review
A low-cost self-regulating pipe cable with a thermostat, for long runs of pipe or an RV water line.
Amazon $71.99$71.99100 ft$0.72/ftSelf-reg. - VEVOR Self-Regulating Pipe Cable 100 ft#2 of 10Full review
The cheapest way to put self-regulating cable with a thermostat on 100 ft of pipe. It carries no UL, ETL or CSA listing.
Amazon $57.90$57.90100 ft$0.58/ftSelf-reg. - HEATIT JHSF1 150 ft#3 of 10Full review
A long plug-in self-regulating cable for many feet of pipe, which also works on a roof edge with clips bought separately.
Amazon $159.99$159.99150 ft$1.07/ftSelf-reg. - HEATIT 5HTM 100 ft Kit#4 of 10Full review
A bulk self-regulating cable with one plug kit included, for one long custom-length run.
Amazon $111.99$111.99100 ft$1.12/ftSelf-reg. - Easy Heat AHB-160 60 ft#5 of 10Full review
A well-documented 60 ft thermostat pipe cable at a low price per foot, for straight runs of supply pipe.
Amazon $60.49$60.4960 ft$1.01/ftConstant
How We Rank
Each cable is ranked against others for the same job and scored on its price per foot, its heating type, whether it has a built-in thermostat, how ready to install it is, its safety listing and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per foot of heating cable | 35% |
| Heating type | self-regulating or constant wattage | 20% |
| Thermostat | built-in thermostat that switches the cable on and off | 10% |
| Ready to install | plugs in out of the box, and roof clips included for roof kits | 10% |
| Safety | safety listing of the cable and a built-in GFCI plug | 10% |
| Warranty | warranty length | 15% |
How we rank explains each factor in full.