DERNORD Immersion Cartridge Heater 12V 150W Hot Rod Heating Element Replacement 3/4 Inch Thread

A very well made product with silicone end sealing, strain relief and high temperature wire. All stainless steel, this heater element is beautiful and should last a long time. I tested the exact resistance of it with my high current 4 wire ohmmeter and it was 0.766 ohms. This is just what the calculations predicted for a 12V 200W element. This is recommended to be powered by a 12V battery only which can supply 17A. A 12V 200W heating element is not a good match for a 12V 200W solar panel as it can only produce about 76W maximum from the 10A that panel could supply. Solar panels are 17-20V and a 24V element is a much better match. In the last picture is the power point solar controller I will be using this heating element with. Electronically this matches the load perfectly to the solar panel for highest efficiency.

The heater works well and can heat 1 gallon of water to 111 degrees F in under 30 minutes. The one suggestion I have is be careful of not to kink +/- wires going into the base.

Wow. I was surprised at how big and beefy this thing is. All stainless. Nice finish. Great sealing job at the wires. Actual diameter of the rod is .744 inches. I haven't load tested it yet, but will update if I find anything off about it.This item would be great for a solar-powered animal trough heater in the winter, a solar/wind/hydro dump load, a waste vegetable oil heater, etc.