Reddit reviews HEATIT JHSF 9-feet 120V Self Regulating assembled Pipe Cable
We found 1 Reddit comments about HEATIT JHSF 9-feet 120V Self Regulating assembled Pipe Cable. Here are the top ones, ranked by their Reddit score.
JHSF doesn't work unless the ambient temperature is below 37F/3 degree C. Please test the cable in a cold environment. HEATIT is registered Trademark by zhukeshi(We didn't authorize other sellers in Amazon.com).Suitable for use on plastic and metal water pipes.( including inlet pipe,drain pipe, sewer , palm tree frost protection etc). Self regulating heating cable output will adjust automatically based on the ambient temperature at each point along the cable.Pre-assembled, easy to install. Including grounded plug with light, built in thermostat(turn the cable 37F on 50F off) and instructions. 120 volt, 3 watts/ft at 50 degrees F. Protect pipes up to 2" in diameter. Can be used by straight, spiral and overlap.ETL approved. 2 ft 18/3 cold lead with plug. The lowest installation temperature of this heating cable is -10 degree C. Tough XLPE as inner insulation and weather resistant PE (high-low temperature) as out jacket. Ingress Protection 65.Testing the cable before the installation. Four year limited warranty. If you are not completely satisfied, please feel free to contact us in any time.
Would it be silly to hook up a 100 watt solar panel to some heat tape?
The idea is to make the panel that I'd only use in the summer pay in the winter by pre-heating the water going into my hot water heater a couple degrees, as a way to cheaply and easily make the solar panel work for me when I'm not otherwise using it.
https://www.amazon.com/dp/B07331JKPR/ref=sspa_dk_detail_1?psc=1
I'm assuming it's pretty much just a resistor so it shouldn't mind ac/dc or voltage that much. I wonder about the thermostat though, and I'd rather have it cut closer to 120F, although I doubt it'd get there, I'd also not want to burn the place down or have a steam explosion. On that one it's on at 37, which is about what my water comes in at, and off at 50 which I wouldn't think I'd ever get.
Does a solar panel care if the load is just a big resistor?
If the tape is 7.5 watts a foot on 120volt ac, how much would I want for a 100 watt panel? Would I want the controller if I have it anyway?
The margins are pretty thin. Assuming in winter the 100 watt panel give 50 watts 8 hours a day offsetting .4kwh per day, or about a nickel, which means the $24 heat tape is paid back in 480 days assuming the panel is free because for it's other purpose.