---
product_id: 21709731
title: "DERNORD 12V 600W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type"
brand: "dernord"
price: "€ 36.35"
currency: EUR
in_stock: true
reviews_count: 13
category: "Dernord"
url: https://www.desertcart.ie/products/21709731-dernord-12v-600w-immersion-heater-submersible-water-heater-element-stainless
store_origin: IE
region: Ireland
---

# 12V DC compatible - versatile power sources 1" NPSM flange - fits standard/custom tanks UL & cUL listed - certified safety & reliability DERNORD 12V 600W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type

**Brand:** dernord
**Price:** € 36.35
**Availability:** ✅ In Stock

## Summary

> 🔥 Heat smarter, not harder – power your water your way! ⚡

## Quick Answers

- **What is this?** DERNORD 12V 600W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type by dernord
- **How much does it cost?** € 36.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/21709731-dernord-12v-600w-immersion-heater-submersible-water-heater-element-stainless)

## Best For

- dernord enthusiasts

## Why This Product

- Trusted dernord brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** UL and cUL certifications mean you get trusted, professional-grade safety standards.
- • **Built to Last:** Electropolished stainless steel surface resists corrosion, promising long-term durability.
- • **Universal Fit:** Standard 1-inch NPSM flange ensures hassle-free installation on USA water tanks or custom setups.
- • **Power Your Way:** Seamlessly connects to batteries, solar panels, hydro & wind generators for eco-smart heating.
- • **Leakproof Confidence:** Flexible silicone sealing washer guarantees a waterproof, worry-free seal every time.

## Overview

The DERNORD Immersion Heater is a 12V, 600W stainless steel submersible heating element designed for versatile, low-voltage applications. Featuring a standard 1-inch NPSM flange, it fits most US water tanks or custom setups. Its electropolished surface and silicone sealing washer ensure durability and leakproof performance. UL and cUL certifications guarantee safety, making it ideal for eco-conscious professionals supplementing hot water with renewable energy sources.

## Description

DERNORD 12V 600W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - desertcart.com

Review: Great low voltage heater for science experiments! - I used this for my son's science experiment which required heating a tank of water and regulating the temperature to a specific value. This worked great, no leaks thanks to the silicone gasket, and was a safe, low-voltage component. we coupled it with our own homemade temperature controller and it worked great! Would purchase again for any similar needs in the future. The heater is made from high quality materials, stainless steel and has the heating element brazed to the terminals for what looks like a long-life component that should last many years. Note: This heater comes with NO NUT, so you need to purchase one separately if not threading into an existing housing with threads or a nut already in place. We used this one: https://www.desertcart.com/gp/product/B06X3TVD81/ref=ppx_od_dt_b_asin_title_s01?ie=UTF8&psc=1
Review: A cheap quick way to supplement hot water. - A cheap Quick Way To Supplement hot Water. just install this element in either the top or lower port to supplement the temp I just used A HF. 4 panel kit about 100 watts. And set up the contact bars to run in series. (Solar Panel current is closer to 24 vdc and travels better A long distance from the source than 12 to minimize loss. ) when you set it up keep in mind you still want to leave the second 220 V element attached as the back up if you don't have enough solar to keep up. we don't use A lot of hot water so I initially installed the low voltage element in the lower port through the existing thermostat and set it at 150 deg. F and Set the top 220 V 2500 watt element at 220 deg. I set it up like this to test everything .the 40 gal. tank held enough hot water to run the dish washer and 2 showers. until finally cooling to lukewarm. so i went to check on the heater and realized i had forgot to turn the grid power breaker back on. I would suggest if you do this at first use a 3500 watt 240 v element in the bottom port set at 140 deg. and use the low voltage element in the top port. and install a mixing valve this maximizes capacity uses less than half of grid power and greatly extends hot water capacity.

## Features

- 12v DC heater connects with batteries, solar panels, hydroelectric generators and wind turbine dump
- 1" NPSM flange fits USA standard water tank or your own custom heater tank
- UL and cUL listed to the safety standards
- Stainless steel surface has electropolish
- Supplied with silicon sealing washer which is flexible and waterproof

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0182BETBE |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #104,379 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #202 in Water Heater Replacement Parts |
| Brand | DERNORD |
| Color | White |
| Customer Reviews | 4.2 4.2 out of 5 stars (458) |
| Date First Available | November 15, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Length | 185 Millimeters |
| Item Package Quantity | 1 |
| Item Weight | 11 ounces |
| Item model number | DERNORD-37 |
| Manufacturer | DERNORD |
| Material | Stainless Steel |
| Part Number | DERNORD-37 |
| Size | 12V 600W |
| Style | 600W |
| UPC | 717080640315 |
| Voltage | 12 Volts |
| Wattage | 600 watts |

## Product Details

- **Brand:** DERNORD
- **Color:** White
- **Item Length:** 185 Millimeters
- **Material:** Stainless Steel
- **Voltage:** 12 Volts

## Images

![DERNORD 12V 600W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - Image 1](https://m.media-amazon.com/images/I/612zVtqjzuL.jpg)

## Questions & Answers

**Q: I have a 100 gallon preheat tank plumbed ahead of my regular water heater. can I install this powered by 600 watt of solar panels. will it overheat**
A: I would not advise directly connecting this to solar panels as there are no regulars for the amount of power that enters the heating element. Solar panels are rated to a specific wattage in the best environment possible, but they will likely never achieve the written specifications on the panel/manual. Take note that in a typical 12V solar panel the output voltage typically ranges from 16V-18V, this is be cause you would need higher than 12V to charge a 12V battery and it is expected that the solar panels will not always get full sun. I believe best practice would be to get a charge controller and a small battery bank for your setup. You can get a decent charge controller for this setup for around $20-30 on Amazon. Batteries will vary, if you go with deep cycle make sure you have ventilation as they excrete flammable hydrogen gas, make sure you keep them filled with distilled water and have a cut off switch so they do not run under 40% charge. Running deep cycle batteries lose a lot of life if they are drained below 40% charge. You can also get lithium batteries that can be run all the way down to 0% without any difference in degeneration; however, with lithium batteries degeneration is occurs every time charging is initiated. With a solar panel and a charge controller you'll be constantly charging and discharging the battery. Good luck with your setup, sorry if this response inquires more questions than it provides answers.

**Q: Can u run just one part of element for low demand and kick on the second part for higher demand**
A: Of course you can, but please take down both metal plate.

**Q: What the correct size of then ? Length and Width?**
A: Please make sure your voltage and wattage(12V, 600W), and then take into account the length (Tube length to the terminal flange:180mm) and flange(1" NPSM).

**Q: Hi, Can we run from 240v to 12v dc transformer directly?**
A: Hi, 12v heating element is ok!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great low voltage heater for science experiments!
*by M***C on February 8, 2021*

I used this for my son's science experiment which required heating a tank of water and regulating the temperature to a specific value. This worked great, no leaks thanks to the silicone gasket, and was a safe, low-voltage component. we coupled it with our own homemade temperature controller and it worked great! Would purchase again for any similar needs in the future. The heater is made from high quality materials, stainless steel and has the heating element brazed to the terminals for what looks like a long-life component that should last many years. Note: This heater comes with NO NUT, so you need to purchase one separately if not threading into an existing housing with threads or a nut already in place. We used this one: https://www.amazon.com/gp/product/B06X3TVD81/ref=ppx_od_dt_b_asin_title_s01?ie=UTF8&psc=1

### ⭐⭐⭐⭐⭐ A cheap quick way to supplement hot water.
*by E***A on September 18, 2025*

A cheap Quick Way To Supplement hot Water. just install this element in either the top or lower port to supplement the temp I just used A HF. 4 panel kit about 100 watts. And set up the contact bars to run in series. (Solar Panel current is closer to 24 vdc and travels better A long distance from the source than 12 to minimize loss. ) when you set it up keep in mind you still want to leave the second 220 V element attached as the back up if you don't have enough solar to keep up. we don't use A lot of hot water so I initially installed the low voltage element in the lower port through the existing thermostat and set it at 150 deg. F and Set the top 220 V 2500 watt element at 220 deg. I set it up like this to test everything .the 40 gal. tank held enough hot water to run the dish washer and 2 showers. until finally cooling to lukewarm. so i went to check on the heater and realized i had forgot to turn the grid power breaker back on. I would suggest if you do this at first use a 3500 watt 240 v element in the bottom port set at 140 deg. and use the low voltage element in the top port. and install a mixing valve this maximizes capacity uses less than half of grid power and greatly extends hot water capacity.

### ⭐⭐⭐⭐ good solid product..
*by R***T on May 3, 2024*

it works very well and waiting to see how it works in its full application...

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-23*