Why is this considered a high watt rather than a low watt density element? What is the length and thread size?

The heater with 1 inch NPT flange has 350mm tube length. and it has 5500w wattage.

Whirlpool model e2f40rd045v. says for 1 phase 240v, 4500 for lower element. will this element work with my water heater?

It depends on whether your existing element is a screw in type or a bolt on type. This is a screw in type element. So if your water heater is a 240 volt with screw in elements then it will work.

Will this fit Ruud pe-30 d hot water heater?

Yes. It's 100% compatible with all water heaters that have ever been made. Including European models which use metric water flow.

I have a 240v hydro turbine that produces 1600w. Will this element work for me

We think you shoud use the lower power heater which is smaller than 1600w

Dernord 240v 2500w Foldback Water Heater Element Screw Plug Heating

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

Description

🔥 Heat smarter, not harder — power your water heater with Dernord precision!

COMPACT FOLDBACK DESIGN - Folded element maximizes heated surface while minimizing length for space-saving installation
EFFORTLESS INSTALLATION - Threaded screw-plug design ensures quick, secure replacement with minimal downtime
UNIVERSAL COMPATIBILITY - Fits most American water heater models including Bradford White, GE, Whirlpool & more
DURABILITY YOU CAN TRUST - Low watt density stainless steel resists dry firing, lime scale, and sand damage
POWER PACKED PERFORMANCE - Delivers a robust 2500W at 240V for rapid, efficient heating

The Dernord 240V 2500W Foldback Water Heater Element is a high-efficiency, stainless steel heating element designed for broad compatibility with American water heaters. Its innovative foldback design maximizes heating surface area while maintaining a compact form factor. Engineered to resist dry firing, lime deposits, and sand abrasion, it ensures long-lasting, reliable performance. Easy to install with a threaded screw-plug mount, this element delivers powerful, uniform heat distribution for fast water heating and energy savings.

Specifications

ASIN	B018S4AQ12
Best Sellers Rank	#45,896 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Water Heater Replacement Heating Elements
Brand	DERNORD
Brand Name	DERNORD
Color	Silver
Colour	Silver
Customer Reviews	4.3 out of 5 stars 45 Reviews
Item Weight	12.95 Ounces
Item weight	12.95 Ounces
Manufacturer	DERNORD
Material	Stainless Steel
Material Type	Stainless Steel
Model Number	DERNORD-21
Number of Items	1
Number of Packs	1
Part Number	DERNORD-21
UPC	717080640360
Unit Count	1 Count
Voltage	240 Volts
Wattage	2500 watts

Reviews

N**D

Good for premanufactured home heaters.

Glad you had it, neither Lowe's or Home Depot had it, and putting a higher wattage element would had caused electrical problems. I installed it a year ago.

14.04.2025

T**.

Serves its purpose well!

I utilized this element in a bit of a different manner, instead of running it off of 240 AC, I tied it to a set of solar panels that make 220 DC. They only make 1100 watts but the resistance of this element (this was attempt #3) matched my panels perfectly! On a good day my 40 gallon tank will make 190 degree water! That equates to almost 80 gallons of usable water with no grid electricity or gas!

15.01.2025

K**R

High Quality

I have bought several of these. They are much higher quality then those found in the big box stores.

19.11.2020

J**S

Installed easy and works great.

Easy install. Water is hot.

16.12.2019

C**R

Good element where stainless is needed

So far it's holding up to the corrosive parkerizing solution

23.10.2017

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