---
product_id: 560844279
title: "DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type"
brand: "dernord"
price: "$126"
currency: NZD
in_stock: true
reviews_count: 5
url: https://www.desertcart.nz/products/560844279-dernord-12v-400w-immersion-heater-submersible-water-heater-element-stainless
store_origin: NZ
region: New Zealand
---

# 400W Power Stainless Steel 12V Connection DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type

**Brand:** dernord
**Price:** $126
**Availability:** ✅ In Stock

## Summary

> 🔥 Heat Up Your Innovations!

## Quick Answers

- **What is this?** DERNORD 12V 400W 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?** $126 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/560844279-dernord-12v-400w-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

- • **Custom Fit:** 1-inch NPSM flange fits standard USA water tanks.
- • **Safety First:** UL and cUL listed for your peace of mind.
- • **Durable Design:** Electropolished stainless steel for longevity and performance.
- • **Power Up Your Projects:** Unleash 400 watts of heating power for all your DIY needs.
- • **Versatile Connectivity:** Seamlessly connects to batteries, solar panels, and more.

## Overview

The DERNORD 12V 400W Immersion Heater is a robust and versatile heating solution designed for various applications. With a powerful 400-watt output and compatibility with multiple power sources, this stainless steel heating element is perfect for DIY enthusiasts and professionals alike. Its UL and cUL safety certifications ensure reliability, while the custom-fit 1-inch NPSM flange makes installation a breeze.

## Description

DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type

## 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 silicone sealing washer which is flexible and waterproof

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Wattage | 400 watts |
| Voltage | 12 Volts |
| Item Length | 175 Millimetres |
| Colour | White |
| Material | Stainless Steel |

## Product Details

- **Material:** Stainless Steel
- **Voltage:** 12 Volts
- **Item length:** 175 Millimetres
- **Brand:** DERNORD
- **Colour:** White

## Images

![DERNORD 12V 400W 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/611pzzn9-XL.jpg)
![DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - Image 2](https://m.media-amazon.com/images/I/510kpuqpgCL.jpg)
![DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - Image 3](https://m.media-amazon.com/images/I/61sjCH0Sn8L.jpg)
![DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - Image 4](https://m.media-amazon.com/images/I/51OLTOco5ZL.jpg)
![DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - Image 5](https://m.media-amazon.com/images/I/61Q7Mk4llKL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    ~300 watts verified
  

*by M***T on Reviewed in the United States on 29 September 2024*

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.

### ⭐⭐⭐⭐ 







  
  
    Works fine, really wish it was hotter
  

*by T***. on Reviewed in Canada on 4 February 2023*

I replaced the 120v element in a Kuuma heater with this unit. Ran 8 gauge power cable to it and it does work.But it takes forever to heat a 10 gallon water heater from cold. Like 6 hours. The 120v element heated the tank from cold in 45 minutes.Once hot it maintains temp okay. Each cycle is about 1 hour. That being said its drawing 28 amps during that time. Overnight that depletes 40% of my 600ah battery bank. Not what I was hoping for.At 28 amps I really wish this got way hotter.  I cannot decide if this is performing better than when I ran the 120v element off my inverter. I believe overnight depletion is around the same. I am really interested in trying it at 24 volts, but that an experiment for future me.So if your using this in a vehicle, and that vehicle is running the engine every day you should be fine. And 28amps is way less stress on the batteries than 160amps is from an inverter. Just plan you showers accordingly as the recoup time is LONG.I will update long term performance a few months from now.

### ⭐⭐⭐⭐⭐ 







  
  
    Versatile and useful product for solar and wind turbine installations!
  

*by T***Y on Reviewed in the United States on 15 December 2019*

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.

## Frequently Bought Together

- DERNORD 12V 400W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type
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**Shop now:** [https://www.desertcart.nz/products/560844279-dernord-12v-400w-immersion-heater-submersible-water-heater-element-stainless](https://www.desertcart.nz/products/560844279-dernord-12v-400w-immersion-heater-submersible-water-heater-element-stainless)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-23*