8 Best ecosmart eco 36 36kws of 2025

Save up to 22% off

Best Choice

1

Rheem
Rheem RETEX-36 Performance 36 kw Self-Modulating 6 GPM Electric Tankless Water Heater

22% Off
Main highlights

Refurbished Product Quality
This refurbished product is tested and certified to look and work like new, including functionality testing, basic cleaning, inspection, and repackaging.

Ideal for Multi-Tasking Households
Handles multiple water outlets simultaneously, making it perfect for homes needing hot water for showers, sinks, and laundry at the same time.

Easy Installation and Performance
Customers praise the straightforward installation process and the unit's ability to heat water quickly and efficiently, even in colder climates.
Key specs
- maximum flow rate:8 GPM
- wattage:36 KW
- special features:Refurbished, certified like new
- heat output:N/A
- maximum pressure:N/A
9.8

Exceptional

Our Rating

9.9
worth the money

9.7
Temperature control

9.3
Easy installation
How do we rank?

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Value for Money

2

EcoSmart
Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater, White

17% Off
Main highlights

Energy Efficiency
The Ecosmart ECO 36 is 99.8% energy efficient, saving on energy bills.

Ideal for Large Families
Perfect for homes with high hot water demand, supports multiple outlets.

Praised for Endless Hot Water
Customers love the continuous hot water supply, even during peak usage.
9.7

Exceptional

Our Rating

9.3
Temperature control

8.9
Efficient Energy Use

8.0
worth the money
3

Lisnhlin
HE 90240 Heating Element Upgrade, 3 Pack, compatible with Ecosmart ECO 18/24/27/36, Rheem, Richmond, Eemax tankless water heaters. 240V, 9KW/18KW/27KW/36KW, RC04709024S Water Heater Element
Main highlights

Key Features
9KW 240V heating element with leak-proof O-ring, made of high-quality brass and anti-oxidation coating for extended durability.

Ideal Use Cases
Perfect for resolving issues like low water temperature, long heating times, and varying water pressures in compatible EcoSmart and Eemax models.

Customer Praise
Users frequently commend its easy installation process and the noticeable improvement in water heating efficiency and output.
Key specs
- wattage:9KW
- size:14.72 x 2.83 x 2.6 inches
- material:High-quality brass
- power source:Electric
- style:Screw-in structure
9.6

Exceptional

Our Rating

8.9
Easy installation

8.0
worth the money
4

zuverlass

HE 90240 Heating Element 9000W 240V for EcoSmart ECO 27 18 36, for Rheem Rtex Retex 27KW 18KW 36KW, for Eemax for Richmond RMTEX, HE90240 Tankless Water Heater Elements RTEX-27 RETEX-27
9.4

Excellent

Our Rating
5

Ximoon
HE 90240 Replacement for Ecosmart ECO 18 24 27 36, 9KW 240V Water Heater Element for Electric Tankless Water Heaters
Main highlights

Key Features
Universal compatibility with EcoSmart and Eemax models, includes O-Ring and screw, high-quality copper construction ensures durability and efficiency.

Ideal Use Cases
Perfect for replacing heating elements in 9kW tankless water heaters, ensuring continuous hot water service in homes and businesses.

Customer Reviews Highlight
Most praised for easy installation and compatibility, significantly improving water heater performance and reliability.
Key specs
- wattage:9000 Watts
- size:14 x 1.75 x 1.75 inches
- material:Copper
- power source:Electric
- style:Heating Element
9.3

Excellent

Our Rating

8.2
worth the money

8.0
Easy installation
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6

MOOTVGOO

MOOTVGOO HE 90240 Heating Element, 9KW 240V Heating Element Replacement for Ecosmart ECO 18, ECO 24, ECO 27, ECO 36, Rheem, Eemax, Richmond 9KW/18KW/27KW/36KW Electric Tankless Water Heaters
9.2

Excellent

Our Rating
7

Ximoon
HE 90240 Replacement for Eco'smart ECO 18 27 36, 9KW 240V Water Heater Element for Eco'smart 27 tankless water heater - 2 Pack
Main highlights

Key Features and Benefits
Compatible with multiple models, includes 2 heating elements and accessories, made from high-quality copper for durability and efficient heating.

Ideal Use Cases
Perfect for EcoSmart, Eemax, iHeat/Drakken, and Rheem tankless water heaters needing a 9kW boost or replacement element to ensure continuous hot water.

Customer Reviews Highlight
Most praised for its easy installation process and compatibility, ensuring a seamless fit and immediate improvement in water heater performance.
Key specs
- wattage:18000 watts
- size:13.5 x 4.9 x 0.8 inches
- material:Copper
- power source:Corded Electric
- style:Indoor Installation
9.0

Excellent

Our Rating

9.5
Easy installation

8.9
worth the money
8

Teninch

HE90240 Heating Element 9KW 240V for EcoSmart ECO 18 24 27 Eemax Richmond 9KW/18KW/27KW/36KW instantaneous Water heaters
8.9

Very Good

Our Rating

8 Best ecosmart eco 36 36kws of 2025

1

Rheem RETEX-36 Performance 36 kw Self-Modulating 6 GPM Electric Tankless Water Heater

9.9

9.7

9.3

How do we rank?

How do we rank?

Analyzing top stores

2

Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater, White

9.3

8.9

8.0

3

HE 90240 Heating Element Upgrade, 3 Pack, compatible with Ecosmart ECO 18/24/27/36, Rheem, Richmond, Eemax tankless water heaters. 240V, 9KW/18KW/27KW/36KW, RC04709024S Water Heater Element

8.9

8.0

4

HE 90240 Heating Element 9000W 240V for EcoSmart ECO 27 18 36, for Rheem Rtex Retex 27KW 18KW 36KW, for Eemax for Richmond RMTEX, HE90240 Tankless Water Heater Elements RTEX-27 RETEX-27

5

HE 90240 Replacement for Ecosmart ECO 18 24 27 36, 9KW 240V Water Heater Element for Electric Tankless Water Heaters

8.2

8.0

6

MOOTVGOO HE 90240 Heating Element, 9KW 240V Heating Element Replacement for Ecosmart ECO 18, ECO 24, ECO 27, ECO 36, Rheem, Eemax, Richmond 9KW/18KW/27KW/36KW Electric Tankless Water Heaters

7

HE 90240 Replacement for Eco'smart ECO 18 27 36, 9KW 240V Water Heater Element for Eco'smart 27 tankless water heater - 2 Pack

9.5

8.9

8

HE90240 Heating Element 9KW 240V for EcoSmart ECO 18 24 27 Eemax Richmond 9KW/18KW/27KW/36KW instantaneous Water heaters

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