HEATIT In-Line Pipe Heat Cable 20 ft
For a buried or hidden water line that can’t be wrapped from outside, such as a lake or spring intake. It costs far more per foot than an external cable.
Amazon $119.99$119.99
The HEATIT In-Line Pipe Heat Cable 20 ft is the better heat cable overall, rated 2.9 to 2.7. The HEATIT In-Line Pipe Heat Cable 20 ft leads on heating type and safety. The Frost King HC24A 24 ft wins on thermostat and value. The Frost King HC24A 24 ft costs $65.57 less ($54.42 vs $119.99).
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.
Frost King HC24A 24 ft
A short thermostat pipe cable for one exposed supply line. Longer cables cost far less per foot.
Amazon $54.42$54.42
Which should you buy?
- Choose the HEATIT In-Line Pipe Heat Cable 20 ft for heating type (self-regulating vs constant wattage) and safety (CSA listed, built-in GFCI plug vs no cable safety listing stated).
- Choose the Frost King HC24A 24 ft for thermostat (built-in thermostat, on at 38 F vs no built-in thermostat) and value ($2.27 per ft ($54.42, 24 ft) vs $6 per ft ($119.99, 20 ft)).
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 In-Line Pipe Heat Cable 20 ft | Frost King HC24A 24 ft |
|---|---|---|
| Overall rating | 2.9/5 | 2.7/5 |
| Value 35% | 0 $6 per ft ($119.99, 20 ft) | 25 $2.27 per ft ($54.42, 24 ft) |
| Heating type 20% | 100 self-regulating | 25 constant wattage |
| Thermostat 10% | 0 no built-in thermostat | 100 built-in thermostat, on at 38 F |
| Ready to install 10% | 100 plugs in out of the box | 100 plugs in out of the box |
| Safety 10% | 100 CSA listed, built-in GFCI plug | 0 no cable safety listing stated |
| Warranty 15% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| HEATIT In-Line Pipe Heat Cable 20 ft | Frost King HC24A 24 ft | |
|---|---|---|
| Heating | ||
| Heated length | 20 ft | 24 ft |
| Rated output | - | 7 W/ft |
| Total watts | - | 168 W |
| Voltage | - | 120 V |
| Heating type | Self-regulating | Constant wattage |
| Built-in thermostat | No | On at 38 F, off at 45 F |
| Installation | ||
| Connection | Plugs in | Plugs in |
| Safety and warranty | ||
| Safety listing | CSA | - |
| Ground-fault protection | Built into the plug | - |