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 is the better heat cable overall, rated 4.0 to 2.8. The HEATIT 3JHSF 100 ft leads on value, thermostat and ready to install. The HEATIT 3JHSF 100 ft costs $69.35 less ($71.99 vs $141.34).
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 SR100 Freeze Free 100 ft
A self-regulating pipe cable reel for several runs of supply and drain pipe. The listing gives no wattage or warranty.
Amazon $141.34$141.34
Which should you buy?
- Choose the HEATIT 3JHSF 100 ft for value ($0.72 per ft ($71.99, 100 ft) vs $1.41 per ft ($141.34, 100 ft)), thermostat (built-in thermostat, on at 38 F vs no built-in thermostat) and ready to install (plugs in out of the box vs needs a connection kit bought separately).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every pipe freeze protection heat cable; a clear win is highlighted. How we rank explains each one.
| Factor weight | HEATIT 3JHSF 100 ft | Frost King SR100 Freeze Free 100 ft |
|---|---|---|
| Overall rating | 4.0/5 | 2.8/5 |
| Value 35% | 74 $0.72 per ft ($71.99, 100 ft) | 45 $1.41 per ft ($141.34, 100 ft) |
| Heating type 20% | 100 self-regulating | 100 self-regulating |
| 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 | 0 needs a connection kit bought separately |
| 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 SR100 Freeze Free 100 ft | |
|---|---|---|
| Heating | ||
| Heated length | 100 ft | 100 ft |
| Rated output | 3 W/ft | - |
| Voltage | 120 V | - |
| Heating type | Self-regulating | Self-regulating |
| Built-in thermostat | On at 38 F, off at 50 F | No |
| Installation | ||
| Connection | Plugs in | Connection kit sold separately |
| Cold lead (power cord) | 3 ft | - |
| Safety and warranty | ||
| Safety listing | ETL | - |