Will this heater work for a 450 gal tank to keep water from freezing?

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...

I will be connecting this directly to my solar panel. My solar panel puts out 12-21 volts. Will 21v damage the element?

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.

What is the resistance of the element aka how many ohms is it

The element which is made of sus304 has 0.48 ohms. Thank you

what size bulkhead do folks use for this? Any links to one?

12 volt 300 watt will take a long time to heat up i use a 48 volt 1000 watt element with batterys

Dernord 12v 150w Immersion Heater Submersible Water Heater Element Stainless

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

VT11336

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

Secure transaction

Description

🔥 Heat Up Your Life with DERNORD!

CUSTOM FIT - 1-inch NPSM flange fits standard USA water tanks or your custom setups.
SAFETY FIRST - UL and cUL listed, ensuring compliance with the highest safety standards.
DURABLE DESIGN - Crafted from electropolished stainless steel for longevity and corrosion resistance.
POWERFUL HEATING - Efficiently heats water with 500 watts of power, perfect for quick heating needs.
VERSATILE COMPATIBILITY - Easily connects to batteries, solar panels, and more for ultimate flexibility.

The DERNORD 12V 500W Immersion Heater is a robust and versatile heating solution designed for various applications. With its stainless steel construction and compatibility with multiple power sources, this heater is perfect for anyone looking to efficiently heat water while ensuring safety and durability.

Specifications

ASIN	B0761L2Q8M
Best Sellers Rank	#108,000 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #196 in Water Heater Replacement Parts
Brand	DERNORD
Brand Name	DERNORD
Color	silver
Customer Reviews	4.3 out of 5 stars 142 Reviews
Item Length	6.89 Inches
Item Weight	0.51 Pounds
Manufacturer	DERNORD
Material	Stainless Steel
Material Type	Stainless Steel
Part Number	DERNORD-51
UPC	717643521518
Unit Count	1.0 Count
Voltage	12 Volts
Wattage	150 watts

Reviews

M**C

8.02.2021

D**R

27.02.2025

R**T

3.05.2024

R**D

16.04.2024

W**S

6.07.2018

D**D

2.02.2018

W**R

2.09.2023

D**H

12.06.2018

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

VT11336

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago