DERNORD 36V 1200W Stainless Steel Heating Element Immersion Heater Submersible Water Heater Element with 1 Inch NPSM Fitting Double U Type

Fairly solid. I would say that it's a little underpowered for application (bought 50x through company to boil an acre large lake), but after a month and $10000 spent on electricity it worked like a charm!Lifespan: Does not run out given that you keep it in distilled water.Ease of installation: Very easy, even a child could do it.Fit: Large, easy to fit.

I split these and made two out of one. With each one being 600 watts. Using a 80 gallon water heater. Also added a 3/4 element. Plenty of hot water.

This is a 36v, 1200watt element. That means the max amps on the wire could be 33amps. To run 33amps DC any distance at all, you're gonna need #8 wire minimum, and maybe heavier.The PROBLEM is the lugs on the element are TINY....haven't measured, but they look like 3/16" studs (or smaller), and WORSE, they are very close to each other.Try to find a lug to go on the end of a #8 wire with a small enough ring or spade connector that it doesn't bridge the small gap between the positive and negative studs on the element......REALLY had to do ! Most are made for 1/4" and go up from there.I finally found some ground lugs at an electrical supply store that take a #8-14 size wire, and mounted them on the element studs to for a place to connect the wire.Whoever designed this sure didn't take into consideration HOW THE HECK TO ACTUALLY CONNECT WIRES TO IT !!Edit: After 3 weeks, the RELAY I had wired between the panels and the element failed. I used a relay (rated at far more amps than my panels put out) controlled by the tank thermostat to control water temperature. I thought initially the element had failed, but it is fine. Waiting on a Bosch relay instead of the cheap one I had from you-know-where. Right now, I'm running six 175w 5a panels into this element in a 28gal tank. My panels are West facing and only get about 1/2 day of sun, but the tank temperatures are running in the 175 degree range with little water used. I'm well pleased with this element.

Everything it is supposed to be. Can't make any claims as far as longevity but it appears to be well made and the threading is clean.

Works great, wired to two 325 watt solar panels to keep my koi pond open in winter.

Heats up nice.

Just got this item and have not operated it yet. Each element is approximately 2.5 ohms, and can be wired in series or parallel with provided shunts. They come wired in parallel for approximately 1.25 total ohms (mine measured ~1.36). If run at the nameplate of 36 volts this consume less than the 1200 watts (approximately 1000 watts, 15% less). However if used in a lead acid battery system of 18 cells (36 V nominal) with a float voltage of around 39 V, it would be closer to the 1200 watts advertised.