The Difference between HISD,JHSF and JHSF1-CT

As winter approaches, the temperature becomes lower. When temperatures drop dangerously low many homes and buildings are at an increased risk of frozen pipes and valves. When water freezes (32℉/0℃) this causes the water to expand; the expansion inside pipes then causes frozen pipes to burst!

Prevent your pipes from freezing in the winter with HEATIT heating cables! HEATIT pipe heating cable has 3 kinds, including HEATIT HISD, HEATIT JHSF, HEATIT JHSF1-CT.

Different working principle
HEATIT HISD is a kind of constant wattage heating cable, which has a steady output and regular power is 7 watts/ft. Besides, HISD built-in thermostat, which can automatically turn on the cable when the temperature lower than 37℉(3℃) and turn off when temperature higher than 50℉(10℃) off.

HEATIT JHSF is a kind of self-regulating heating cable, power will vary according to environment temperature change, built-in thermostat and it can automatically turn on the cable when the temperature lower than 37℉(3℃) and turn off when temperature higher than 50℉(10℃) off.

HEATIT JHSF1-CT is a kind of self-regulating heating cable, without built-in thermostat.

Different application scope

HEATIT HISD can be used on water-filled plastic (including PEX) or metal pipes.

HEATIT JHSF suitable for use on rigid plastic and metal water pipes. ( including inlet pipe, drain pipe, sewer, palm tree frost protection, etc).

HEATIT JHSF1-CT suitable for use on plastic and metal water pipes( including inlet pipe, drain pipe, sewer, palm tree frost protection, etc). Besides, JHSF1-CT used fluoropolymer material as an outer jacket and the material can protect the heating cable from chemical attack and mechanical abuse, so It can be used inside the pipe (Please do not immerse the connection between the cold lead and black heating cable into the water). And JHSF1-CT also can be used on flat roofs, metal roofs, asphalt roofs, rubber roofs, slate roofs, stone roofs, metal roofs, ceramic roofs, composite (tar and gravel) roofs and so on. Industrial grade self-regulating heating cable.

In summary, these three lines are basic characteristics. For specific questions, you can ask the official website customer service.