Best Heating Element Options for Tankless Water Heaters: Top Picks and Buying Guide
Choosing the right heating element is essential for maintaining hot water performance in tankless systems. This guide highlights five highly compatible, commonly used elements designed for EcoSmart, Rheem, Eemax, Richmond, iHeat/Drakken, and other electric tankless heaters. Each option emphasizes easy installation, compatibility, and reliable heating performance. Read on to compare features, installation notes, and how to select the best element for your setup.
Summary Table
| Product | Brand | Voltage/Power | Compatibility Highlights | Included |
|---|---|---|---|---|
| Upgrade HE 90240 (2-Pack) | ATEEfaee | 240V, 9KW / 18KW / 27KW / 36KW | EcoSmart ECO 18-36, Eemax, Rheem RTEX-*, Richmond RMTEX-*, iHeat/Drakken | Heating element, O-Ring, screw |
| HE 90240 Replacement for Ecosmart ECO 18-36 | Ximoon | 240V, 9KW | EcoSmart Eco 18-36; Eemax, Drakken, Rheem, Richmond variants | Heating element, O-Ring, screw |
| HE 55220 Water Heating Element | DuckcowsC | 220V / 5.5kW (and variants) | EcoSmart POU 6/8/11; Eemax, Rheem, Richmond variants | Heating element |
| HE 90240 Heating Element (3-Pack) | Mhrxusd | 240V, 9KW | EcoSmart ECO 18-36; IHeat/Drakken; Eemax; Rheem; Richmond | Three heating elements |
| 2 Pack HE 55220 Heating Element | JINQHTEK | 220V / 5.5kW and 240V / 6kW | EcoSmart ECO POU 6/8/11; Eemax; Rheem; Richmond | Two heating elements |
Note: All products listed are screw-in style replacement elements. Compatibility varies by model and year; always verify the exact heater model before purchasing.
Upgrade HE 90240 Heating Element For EcoSmart and More
The Upgrade HE 90240 is a screw-in heating element designed for quick maintenance and straightforward replacement. It includes a new O-Ring and screw for a complete install. Compatibility spans Ecosmart ECO 18, 24, 27, 36, and extends to many third-party units like Eemax and Richmond models. This element aims to restore heating performance when symptoms such as long heating times or low water temperatures occur, helping avoid more costly replacements.
HE 90240 Replacement for Ecosmart ECO 18-36
The Ximoon HE 90240 replacement targets 9kW 240V environments and is designed to fit EcoSmart Eco 18, 24, 27, and 36 series, as well as additional brands including Eemax and Rheem. It includes a new O-Ring and screw. Specifications emphasize a 9,000-watt, 240-volt profile, delivering faster heat for reliable hot water delivery in households with higher demand.
HE 55220 Water Heating Element (2 Pack)
The DuckcowsC HE 55220 is a 5.5kW 220V element designed to fit EcoSmart ECO Pou series (6, 8, 11) along with multiple Eemax, Rheem, and Richmond models. The unit emphasizes a brass construction for durability and corrosion resistance, aiming to reduce mineral buildup. It is offered as a 2-pack, providing a convenient replacement option for households with multiple units or for future maintenance planning.
HE 90240 Heating Element (3-Pack)
This Mhrxusd offering bundles three HE 90240 heating elements suitable for EcoSmart 18, 27, and 36 configurations, plus compatibility with iHeat/Drakken and other major brands. The 9KW/240V profile is standard for larger EcoSmart tanks. Including three elements provides a cost-efficient, multi-unit replacement strategy and reduces downtime in busy households or service environments.
HE 90240 Tankless Element For EcoSmart And More
The Kscjdg HE 90240 element is designed to fit EcoSmart Eco 18, Eco 24, Eco 27, and 36, along with iHeat/Drakken and Eemax series. The packaging notes a 9000W/240V specification and a screw-in design, with a new rubber ring included. It highlights broad compatibility, making it a suitable replacement across multiple tankless heater models where hot water performance has declined due to a failing element.
HE 90240 Replacement Parts For Ecosmart And More
This DuckcowsC option emphasizes a broad compatibility range, covering Ecosmart ECO 18 through 36, Rheem RTEX/RETEX series, Richmond RMTEX families, and several iHeat/Drakken configurations. The 9000W/240V profile is highlighted, with corrosion-resistant brass and mineral-deposit resistance cited as key advantages. This replacement set positions itself as a reliable upgrade for sustaining hot water delivery in mixed-brand systems.
Buying Guide: Key Considerations for Tankless Heating Elements
When selecting a heating element for a tankless water heater, consider compatibility with your model, wattage requirements, and installation practicality. Here are essential factors to evaluate from multiple perspectives.
- Compatibility: Confirm the exact model and voltage of your heater. Many replacements list broad compatibility, but the correct fit depends on your unit’s chamber configuration and KW capacity.
- Wattage and Voltage: Common replacements are 9kW at 240V, but some systems use 5.5kW at 220V or other variants. Matching the original rating ensures steady hot water temperatures and avoids overloading circuits.
- Mounting Style: Most replacements use a screw-in design with an O-Ring for a tight seal. Ensure you have access to a compatible wrench and sealant or gaskets as required.
- Materials and Durability: Brass elements offer good thermal conductivity and corrosion resistance. Evaluate mineral deposit resistance for longevity in hard water areas.
- Installation Time and Labor: Screw-in elements typically install in minutes, but verify that you can safely shut off power and water supply before starting.
- Service Life and Warranty: Check if the seller provides replacement rings, screws, or extra seals. Packages that include O-Rings reduce the need for extra parts during install.
- Availability and Price Trends: Stock levels fluctuate; consider a multi-pack option for future maintenance while comparing total cost of ownership over time.
- Brand Ecosystem: Some replacements advertise broad cross-brand compatibility. Verify your heater’s brand and model lists to minimize mismatch risk.
Choosing the right element involves balancing immediate compatibility with long-term reliability. For higher-demand households or multi-unit setups, a multi-pack can simplify maintenance and reduce downtime. Always follow the heater’s user manual and consult a licensed technician if you’re uncertain about electrical safety or model compatibility.