A low-cost self-regulating pipe cable with a thermostat, for long runs of pipe or an RV water line.
Amazon $71.99The HEATIT 3JHSF 100 ft rates 4.0 among pipe freeze protection heat cables; the TOPDURE 120 ft Roof De-Icing Cable rates 3.1 among roof & gutter ones. The HEATIT 3JHSF 100 ft costs $31 less ($71.99 vs $102.99).
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.

A 120 ft constant-wattage roof kit with clips, priced between the Easy Heat and HEATIT kits per foot.
Amazon $102.99Scores side by side
These two sit in different use classes (pipe freeze protection and roof & gutter), and each is scored against the reference points for its own class, so a rating says how well each does among its own use peers. How we rank explains each factor.
| Factor weight | HEATIT 3JHSF 100 ft | TOPDURE 120 ft Roof De-Icing Cable |
|---|---|---|
| Overall rating | 4.0/5 | 3.1/5 |
| Value 35% | 74 $0.72 per ft ($71.99, 100 ft) | 67 $0.86 per ft ($102.99, 120 ft) |
| Heating type 20% | 100 self-regulating | 25 constant wattage |
| Thermostat 10% | 100 built-in thermostat, on at 38 F | 0 no built-in thermostat |
| Ready to install 10% | 100 plugs in out of the box | 100 plugs in out of the box, roof clips included |
| Safety 10% | 60 ETL listed | 60 ETL/CSA listed |
| Warranty 15% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| HEATIT 3JHSF 100 ft | TOPDURE 120 ft Roof De-Icing Cable | |
|---|---|---|
| Heating | ||
| Heated length | 100 ft | 120 ft |
| Rated output | 3 W/ft | 5 W/ft |
| Total watts | - | 600 W |
| Voltage | 120 V | - |
| Heating type | Self-regulating | Constant wattage |
| Built-in thermostat | On at 38 F, off at 50 F | No |
| Installation | ||
| Connection | Plugs in | Plugs in |
| Cold lead (power cord) | 3 ft | 6 ft |
| Roof clips included | - | Yes |
| Safety and warranty | ||
| Safety listing | ETL | ETL, CSA |