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
The HEATIT 3JHSF 100 ft rates 4.0 among pipe freeze protection heat cables; the Frost King RC100 100 ft rates 2.8 among roof & gutter ones. The HEATIT 3JHSF 100 ft costs $23.99 less ($71.99 vs $95.98).
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.
Frost King RC100 100 ft
#11 in Roof & gutterFull review
A plain 100 ft constant-wattage kit for shingle roofs at a fair price per foot.
Amazon $95.98$95.98
Scores 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 | Frost King RC100 100 ft |
|---|---|---|
| Overall rating | 4.0/5 | 2.8/5 |
| Value 35% | 74 $0.72 per ft ($71.99, 100 ft) | 62 $0.96 per ft ($95.98, 100 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 | 0 no cable safety listing stated |
| Warranty 15% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| HEATIT 3JHSF 100 ft | Frost King RC100 100 ft | |
|---|---|---|
| Heating | ||
| Heated length | 100 ft | 100 ft |
| Rated output | 3 W/ft | 5 W/ft |
| Total watts | - | 500 W |
| Voltage | 120 V | 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 | - |
| Roof clips included | - | Yes |
| Safety and warranty | ||
| Safety listing | ETL | - |