Best Electric Heater Element Kits and Replacement Elements

This guide compares reliable electric heater elements and tune-up kits for residential water heaters and immersion applications. Below is a concise summary of the selected products to help you scan options quickly.

Product	Type	Wattage / Voltage	Key Feature
EWH-03 Electric Water Heater Tune-Up Kit (DROMIX)	Tune-Up Kit	4500W @ 240V	Includes 2 elements, 2 thermostats, element wrench
EWH-01 Electric Water Heater Tune-Up Kit (DROMIX)	Tune-Up Kit	4500W @ 240V	Thermo-O-Disc thermostats, 13-9/16″ insert length
Eastman 2000W Straight Copper Water Heater Element	Single Element	2000W @ 120V	High watt density, screw mount with gasket
Commercial Electric Water Immersion Heating Element Brass	Immersion Element	5000W @ 208V	Brass immersion element for buffet/steam tables
EWH-02 Electric Water Heater Tune-Up Kit (DROMIX)	Tune-Up Kit	4500W @ 240V	Protective covers, TOD style thermostats

EWH-03 Electric Water Heater Tune-Up Kit With Element Wrench

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This DROMIX kit is a complete tune-up package that includes two copper screw-in heating elements, two Thermo-O-Disc style thermostats (upper and lower), and an element wrench socket. The listed elements are rated at 4500W @ 240V (approx. 3800W @ 208V), suitable for many residential 30+ gallon tanks.

The thermostats have an adjustable range of 90°F–150°F and are described as exchangeable with Apcom-style controls. The included wrench provides a 1-1/2″ hex for element removal and a 1-1/16″ hex for anode rod removal, with a 10″ length for clearance. This kit targets a full maintenance cycle: element replacement and thermostat reset.

EWH-01 Electric Water Heater Tune-Up Kit

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The EWH-01 kit includes two 4500W copper elements and an upper and lower Thermo-O-Disc thermostat. The elements have an insert length of 13-9/16″, a common dimension for many tank sizes, and are specified to fit most brands of water heaters rated at 30 gallons or more.

The thermostats cover 120V–480V systems and are interchangeable with APCOM style controls. This kit is positioned as a one-year warranty product and is intended to provide an efficient element and control swap to restore heating performance after part degradation.

Eastman 120V 2000W Straight Electric Water Heater Element

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The Eastman 2000W element is a single, straight, high watt density copper-sheathed electric water heater element intended for 120V connections. It features a screw mount with gasket for a secure seal and simplified installation.

The design emphasizes durability and consistent heating using a copper sheath. This element is suitable for specific replacement scenarios where a 2000W 120V element is required rather than a dual-element kit. Verify thread type and insert length before selecting this model for retrofit applications.

Commercial Electric Water Immersion Heating Element Brass (5000 Watt)

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This commercial immersion element is rated at 5000W, 208V and is designed for high-demand applications like buffet tables and steam tables. The product lists a 10″ dimension in the front view and uses a brass construction suitable for immersion heating fixtures.

Immersion elements differ from household screw-in elements: they are intended for direct immersion in process tanks and commercial equipment. Confirm electrical supply, mounting interface, and system compatibility when considering this product for non-residential or specialty installations.

EWH-02 Electric Water Heater Tune-Up Kit With Protective Covers

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The EWH-02 kit includes two 4500W copper high watt density elements, an upper and a lower thermostat, and protective terminal covers. Thermo-O-Disc style thermostats cover a temperature adjustment range of 90°F–150°F with a listed high limit of 170°F.

Features include a standard 1″ diameter x 11-1/2 NPSM thread and a 13-9/16″ insert length specified for tanks with an inside diameter of ≥14″. The kit is designed as a plumber’s pack for quick tune-ups and to extend water heater life through preventive replacement of aging parts.

Buying Guide: How To Choose The Right Electric Heater Element Or Kit

Selecting the proper element or tune-up kit requires matching mechanical, electrical, and application factors. Below are the key considerations to evaluate before purchase.

1. Match Wattage And Voltage

Confirm the heater’s rated wattage and voltage on the appliance label. Common residential elements are 4500W @ 240V (high watt density) or 2000W @ 120V for single-element systems. Using incorrect wattage or voltage can overload circuits or underperform.

2. Verify Thread Type And Insert Length

Check the original element’s thread specification (NPSM or NPT) and the insert length so the replacement sits correctly in the tank. Common insert lengths are around 13-9/16″ for many 30+ gallon tanks. Thread mismatch prevents proper sealing and can cause leaks.

3. Thermostat Style And Compatibility

Thermostats come in styles such as Thermo-O-Disc (TOD) and APCOM. Ensure replacement thermostats are listed as exchangeable with the existing style. Also confirm terminal layout and voltage rating (120V–480V range is common for listed kits).

4. Material And Sheath Construction

Copper-sheathed elements are common in residential systems for efficient heat transfer. For corrosive water conditions, consider elements with alternative sheath materials (stainless steel) or configure sacrificial anodes to limit corrosion.

5. High Watt Density Vs. Lower Watt Density

High watt density elements (e.g., 4500W) heat faster but can scale more rapidly in hard water. Lower watt density elements run cooler per area but may take longer to recover hot water. Match density to water quality and recovery expectations.

6. Immersion Element Specifics

Commercial immersion elements are designed for process applications and may use different flanges, threads, or brass fittings. Verify mechanical mounting and power supply compatibility for buffet tables, immersion tanks, and industrial uses.

7. Included Tools And Protective Covers

Kits that include an element wrench and terminal protective covers can simplify installation and improve electrical safety. Wrench sizing (1-1/2″ for elements, 1-1/16″ for anode) matters for access and clearance in the tank area.

8. Warranty And Replacement Policy

Review the manufacturer’s stated warranty period and return/exchange policy. Kits and parts may carry different warranty terms; a clearly stated warranty can be useful for troubleshooting faulty components after installation.

9. Safety And Local Codes

Follow local electrical codes and shut off power at the breaker before servicing. Replacement thermostats and elements must meet UL or equivalent safety listings for your region. If unsure, consult a licensed plumber or electrician.

10. Performance Versus Longevity Trade-Offs

High-performance kits restore quick recovery and hot water availability but may require more frequent maintenance in hard water areas. Preventive measures like sediment flushing and anode replacement help extend element life regardless of wattage.

Comparison Perspectives

When comparing kits and individual elements, weigh multiple perspectives to ensure the right selection:

• Compatibility Perspective: Kits like EWH-03 and EWH-02 bundle elements and thermostats tailored for common tank dimensions and terminal styles.
• Application Perspective: Eastman 2000W targets single-element 120V residential replacements, while the 5000W brass immersion element suits commercial immersion tasks.
• Maintenance Perspective: Tune-up kits that include a wrench and protective covers reduce the need for additional purchases during service.
• Durability Perspective: Copper-sheathed elements are standard; for aggressive water chemistry, consider alternative sheath materials or corrosion mitigation strategies.