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🔥 Power your water heating with off-grid confidence ⚡
The DERNORD 12V 200W Immersion Heater is a robust stainless steel submersible heating element designed for 12V DC systems. Featuring a universal 1-inch NPSM flange, it fits standard US water tanks and custom heaters. UL and cUL safety certifications ensure reliable performance, while the electropolished surface and silicone sealing washer provide durability and waterproof installation. Ideal for battery, solar, hydro, or wind-powered setups.
| Material | Stainless Steel |
| Voltage | 12 Volts |
| Item Length | 6.89 Inches |
| Brand | DERNORD |
| Color | Silver |
| Wattage | 200 watts |
| Manufacturer | DERNORD |
| Part Number | DERNORD-1742 |
| Item Weight | 8 ounces |
| Item model number | DERNORD-1742 |
| Size | 12V 200W(Single U Type) |
| Batteries Included? | No |
| Batteries Required? | No |
M**T
~300 watts verified
I measured the element with connecting bars attached. Ohms measured 0.5 ohms, 12 V/0.5 ohm=24 amps, 24x12=288 watts. This will give a decent amount of heat to keep water from freezing.
S**I
Best solution there is for Rv off grid camping
Would give it 10 stars if i could.I was heating my water heater in my RV with gas was getting to expensive here at $3.60 a gallon. After doing some simple math the figures came out to 6 gallons of hot water every 2 hours in a perfect environment meaning no heat losses threw insulation. So factoring heat losses on i figured a tank of hot water every 3 hour.Worked out perfectly i now have hot water all day.Now i dont kill my batteries using the ac inverter to get hot water.Its a small burden on my solar panels 300 watts i have 4 100 panels.Not using any gas at all 2 people living here and enjoy a hot shower any time WE want one.
Y**N
Not 300 watts @12v
This is a great option for heating water in my car rooftop solar tube. Fit is excellent. ABS 4x4x2 fitting with PVC adapter/reducer and threaded galvanized reducer.I test ran with one element connected. It drew 175 watts. When I connected the second it drew 350 watts. Thought folks should know actual power usage.
T**Y
Versatile and useful product for solar and wind turbine installations!
I have used these for years and never had one fail. With the two elements, they can be configured for half-load (one element), full load 12V (factory config with parallel jumpers) or full load 24V (move jumpers to series the elements). As such, they are perfect dump loads for solar and wind turbine use and can store energy as hot water. The 1" NPT fittings fit many common water heaters.
A**.
looks like good quality
Appears that I should work as intended, looks like good quality.
R**S
it works
it works, simple to install, drilled a hole in my water container and hooked it up to my batteryits gets super hot, takes a bit longer to warm the water than i thought it would tho, but i didnt know what to expect.
G**A
It works
So far we have just tested it to make sure it heats up. It did.
K**N
... 3 100 watt solar panels and didn’t have a great sunny day
Heated water to 80 degrees using 3 100 watt solar panels and didn’t have a great sunny day
Trustpilot
2 weeks ago
1 week ago