--- product_id: 24106484 title: "DERNORD 12V 300W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type" brand: "dernord" price: "₩81215" currency: KRW in_stock: true reviews_count: 9 category: "Dernord" url: https://www.desertcart.kr/products/24106484-dernord-12v-300w-immersion-heater-submersible-water-heater-element-stainless store_origin: KR region: South Korea --- # 300W power output - efficient heating 12V DC compatible - perfect for off-grid power 1" NPSM fitting - universal tank compatibility DERNORD 12V 300W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type **Brand:** dernord **Price:** ₩81215 **Availability:** ✅ In Stock ## Summary > 🔥 Power your off-grid lifestyle with sleek, reliable heat! 🔋 ## Quick Answers - **What is this?** DERNORD 12V 300W 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?** ₩81215 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/24106484-dernord-12v-300w-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 Certified:** UL and cUL listed to guarantee reliable and safe operation under demanding conditions. - • **Off-Grid Ready Power:** Seamlessly integrates with batteries, solar panels, and wind turbines for eco-smart heating. - • **Flexible Installation:** Standard 1" NPSM flange fits most US water tanks or custom setups with ease. - • **Waterproof Seal Included:** Comes with a silicone sealing washer for a leak-proof, flexible fit every time. - • **Robust Stainless Steel Build:** Electropolished surface ensures durability and corrosion resistance for long-lasting performance. ## Overview The DERNORD 12V 300W Immersion Heater is a stainless steel, submersible heating element designed for off-grid energy systems. Featuring a universal 1" NPSM fitting, UL safety certifications, and a waterproof silicone seal, it delivers efficient and durable heating compatible with batteries, solar, and wind power setups. ## Description DERNORD 12V 300W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - desertcart.com Review: Nice build quality - 23 amps at 12v Review: 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. ## 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 | |---------------|-------| | ASIN | B017VT68XA | | Best Sellers Rank | #102,106 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #187 in Water Heater Replacement Parts | | Brand Name | DERNORD | | Color | Silver | | Customer Reviews | 4.3 4.3 out of 5 stars (119) | | Item Length | 175 Millimeters | | Item Weight | 11 Ounces | | Manufacturer | DERNORD | | Material Type | Stainless Steel | | UPC | 717080640254 | | Unit Count | 1.0 Count | | Voltage | 12 Volts | | Wattage | 300 watts | ## Product Details - **Brand:** DERNORD - **Color:** Silver - **Item Length:** 175 Millimeters - **Material:** Stainless Steel - **Voltage:** 12 Volts ## Images ![DERNORD 12V 300W 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/51hj+VEp5mL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Will this heater work for a 450 gal tank to keep water from freezing?** A: Most likely NOT, Is the tank indoors or outdoors? you will need at least a 800watt element, make sure yo have a thermostat to control the temp... **Q: I will be connecting this directly to my solar panel. My solar panel puts out 12-21 volts. Will 21v damage the element?** A: The heater is actually two twelve volt elements connected in parallel by factory jumpers. Much of the time, this load would pull down a 300 watt panel to very low voltage resulting in poor heating. You will probably find the higher voltage and lower amps of putting the elements in series (change the factory jumpers) across your panel yields better results (heating) and solves the possibility of damaging the elements. The heater then becomes 24 V and 300 W. **Q: What is the resistance of the element aka how many ohms is it** A: The element which is made of sus304 has 0.48 ohms. Thank you **Q: what size bulkhead do folks use for this? Any links to one?** A: 12 volt 300 watt will take a long time to heat up i use a 48 volt 1000 watt element with batterys ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice build quality *by P***R on June 13, 2020* 23 amps at 12v ### ⭐⭐⭐⭐ Not 300 watts @12v *by Y***N on September 4, 2022* 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. ### ⭐⭐⭐⭐⭐ ~300 watts verified *by M***T on September 29, 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. ## Frequently Bought Together - DERNORD 12V 300W Immersion Heater Submersible Water Heater Element Stainless Steel Heating Element with 1 Inch NPSM Fitting Double U Type - Beduan 1" Female Bulkhead Water Tank Connector Stainless Steel Thru-bulk Fitting - DERNORD Cast Pipe Fitting Stainless Steel 304 Hex Locknut NPT Female 1" (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/24106484-dernord-12v-300w-immersion-heater-submersible-water-heater-element-stainless](https://www.desertcart.kr/products/24106484-dernord-12v-300w-immersion-heater-submersible-water-heater-element-stainless) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-04-25*