Best Tankless Water Heater Elements to Restore Peak Performance
The best option for this search is to replace a faulty heating element in a tankless water heater. These elements are best for homeowners or service pros dealing with low water temperature, slow heating, or inconsistent hot water. The top picks below are chosen for compatibility, ease of installation, and overall value for Ecosmart, Rheem, Richmond, and similar models. A quick summary table of the selected products is provided to help quick comparisons.
| Product | Best For | Key Benefit |
|---|---|---|
| Upgraded HE 90240 Heating Element, 2 Pack | EcoSmart Eco 18/24/27/36 users | Comprehensive compatibility and included hardware |
| HE 90240 Heating Element Upgrade, 3 Pack | Multiple tankless models | Value pack for multiple replacements |
| HE 90240 Heating Element, Replacement for EcoSmart ECO | EcoSmart Eco 18/24/27/36 users | Screw-in, copper design |
| Chromex Tankless Water Heater Flush Kit | Routine maintenance | Descaling solution boosts efficiency |
| HE 90240 Water Heater Element 2PCS | EcoSmart and similar models | Comprehensive compatibility and gasket |
Upgraded HE 90240 Heating Element, 2 Pack
Best for: EcoSmart Eco 18, Eco 24, Eco 27, Eco 36 users who want an all-in-one replacement kit. This 90240 element is designed to screw in quickly and includes an O-Ring and mounting screw, reducing downtime when a heating element fails. It is compatible with a wide range of brands, making it a versatile choice for mixed systems.
Why chosen: The kit’s compatibility list covers major tankless brands and models, enabling a single part to service several units. The included hardware simplifies installation and helps ensure a proper seal to prevent leaks.
Limitations: Always verify model compatibility with your exact water heater model before installation to avoid mismatches.
HE 90240 Heating Element Upgrade, 3 Pack
Best for: Homeowners with multiple EcoSmart or Richmond/Rheem tankless units needing a cost-effective replacement plan. The 3-pack provides substantial value for households with more than one heater or ongoing maintenance cycles.
Why chosen: The product specifies the 90240 element and 9KW/240V rating, aligning with common EcoSmart and related models. A leaktight O-ring gasket is included for reliable sealing at installation.
Limitations: Confirm your heater’s exact electrical rating (9KW/240V) and model compatibility before purchasing multiple packs.
HE 90240 Heating Element, Replacement for EcoSmart ECO 18 27 36
Best for: EcoSmart Eco 18, Eco 24, Eco 27, Eco 36 users seeking a screw-in copper element with straightforward replacement steps. This option emphasizes compatibility and practical installability.
Why chosen: The listing highlights broad compatibility with iHeat/Drakken and several Rheem/Richmond models, making it a flexible choice for mixed-brand systems.
Caution: Check specific model compatibility against your heater’s part number to ensure a correct fit, as some units may require alternative configurations.
Chromex Tankless Water Heater Flush Kit
Best for: Any tankless system needing periodic descaling and maintenance to extend life and efficiency. Ideal for households facing mineral buildup in hard water areas.
Why chosen: This kit includes a descaling solution and a 1/6HP pump, enabling a thorough flush for many brands, including Ecosmart, Rheem, Noritz, and more. NSF-certified solution adds safety for potable water systems.
Limitation: Primarily a maintenance tool; it does not serve as a replacement heating element.
HE 90240 Water Heater Element 2PCS for Ecosmart Eco 18/24/27/36
Best for: EcoSmart Eco 18, Eco 24, Eco 27, Eco 36 users who want a two-pack for backups or simultaneous replacements. The part is compatible with a broad set of brands listed in the description.
Why chosen: The product emphasizes compatibility across multiple models and mentions a leak-proof O-ring gasket, which helps with a reliable seal after replacement.
Warning: As with all 90240 elements, verify the exact model and model year of your heater to ensure proper fit and electrical compatibility.
Buying Guide: Tankless Water Heater Elements
What is a tankless water heater element and why replace it?
A tankless water heater element is the heating component inside certain electric tankless water heaters. It converts electrical energy into heat, warming water as it passes through the unit. Replacing a damaged element restores heating capability when symptoms include cold water, longer heating times, or reduced water flow.
Key compatibility considerations
- Model compatibility: Check your heater’s model number (EcoSmart ECO series, Rheem, Richmond, etc.) and confirm the 90240 element is listed as a compatible replacement.
- Voltage and wattage: Ensure the element rating (typically 240V and 9KW, but varies by model) matches your unit’s specification.
- Gasket and seal: A leak-proof O-ring helps prevent leaks at the element connection.
Installation ease and kit contents
- Look for screw-in elements with included hardware (O-ring and screw) for faster, tool-light replacement.
- Some options are sold as multi-packs (2-pack or 3-pack) to support multiple units or future replacements.
- Compatibility breadth can reduce the need to inventory multiple part numbers.
Maintaining tankless systems beyond element replacement
- Periodic descaling helps sustain efficiency and prolongs unit life, especially in hard water areas.
- Regular inspection of electrical connections and seals adds reliability and safety.
Selecting the right product for your needs
- Best for one heater: A single 90240 element with included O-ring may be sufficient if you have a single unit and verified model compatibility.
- Best for multiple units or replacements over time: A multi-pack element can reduce future downtime and costs.
- Best for maintenance-included bundles: A flush kit complements element replacement by removing mineral buildup that impedes heating efficiency.
Common questions
- Q: Can I use any 90240 element for my EcoSmart heater? A: Only if the listing confirms compatibility with your exact model and year.
- Q: Do all 90240 elements include an O-ring? A: Most listings mention a leak-proof O-ring gasket, but verify in the product details.
- Q: Is a professional installation necessary? A: If you are comfortable with basic electrical appliance maintenance, you can perform screw-in replacements; otherwise, consult a technician.
- Q: Will replacing the element fix low water temperature? A: It can, if the root cause is a failed heating element; other issues may require additional inspection.
- Q: Do I need a descaling kit separately when replacing the element? A: Not required, but descaling can improve performance and lifespan in hard water conditions.
Purchase considerations at a glance
- Compatibility with your heater model and brand
- Electrical specifications (voltage and kilowatts)
- Inclusion of O-ring gasket and hardware
- Pack size and storage for future replacements
- Availability of maintenance tools like a descaling kit
FAQ
- What does a faulty tankless heater element look like? Answer: Symptoms include cold water, longer heating times, or inconsistent water temperatures.
- Can I replace the element myself? Answer: Yes, if you are comfortable with basic electrical parts and follow safety precautions.
- How do I verify compatibility? Answer: Compare the heater’s model number, wattage, and voltage with the replacement part’s specifications and the manufacturer’s compatibility list.
- Is a descaling kit necessary after replacing the element? Answer: Descaling is recommended in hard water areas to maintain efficiency and prolong life.
- Are multi-pack replacements better than singles? Answer: They offer better value and ensure you have backups for future maintenance across multiple units.