Water heater replacement thermostats are crucial components for maintaining your home's hot water supply, regulating temperature, and ensuring safety. These devices are typically sought when existing units fail, leading to inconsistent heating or complete loss of hot water. Products were evaluated based on safety features, compatibility with various heater types, overall performance, user reviews, and comprehensive feature analysis.
EWH-01 Electric Water Heater Tune-Up Kit, Includes Two Water Heater Thermostats, Two Water Heater Heating Elements - 4500W 240V, T-O-D Style Thermostat, Water Heater Replacement Parts
$35.59
The DROMIX EWH-01 offers a comprehensive tune-up kit including both thermostats and heating elements, providing a complete solution for common water heater issues.
Search on AmazonRheem UV11698 Therm-O-Disc Upper Thermostat, Electric Water Heaters
The Rheem UV11698 provides a straightforward upper thermostat replacement for electric water heaters, focusing on essential functionality without additional components.
Search on AmazonEastman 60172N Double Throw Upper Element Thermostat for Water Heaters, Black
The Eastman 60172N upper thermostat stands out with its adjustable temperature range and built-in safety switch, offering enhanced control and protection for dual element water heaters.
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- 【Contains】 1 x Upper water heater Thermostat and 1 x Lower water heater Thermostat , Non-Simultaneous, 120V ~ 480V. Temperature adjustment range:90F (32 ℃)~150F (66 ℃).Thermo-O-Disc(TOD)Style, interchangeable with Apcom type thermostats, 120V...
- 【ONE YEAR WARRANTY】If you find any issue not limited on quality problems, please contact us in time to support or return/refund, we will try our best to solve it for you, please rest assured to buy.
- 【SAFETY APPROVED】 Electric Water Heater Thermostat was tested and approved by 3rd part test lab to ensure the design and the material are sadety for electic water heater application. The safety approved marking is on the products.
- 【POWERFUL PERFORMANCE】 KST series controls are designed to meet the high electrical capacity requirements of electric water heaters, using a temperature sensitive bimetal disc to deliver snap-action to the contacts. It has a long use time.
- 【ONE YEAR WARRANTY】Z Turn-up Kit Includes (2) 4500W 240V COPPER Water Heater Element, Insert Length: 13-9/16". 3500W@208V. Fit Most Brands of Water Heater >= 30 Gallons.
- 【ONE YEAR WARRANTY】Includes (1) Upper Water Heater Thermostat, (1) Lower Water Heater Thermostat, 120V ~ 480V
- 【Interchangeable】Therm-O-Disc Type Thermostat, Can interchange with APCOM type.
- 【More Durable】Extra Longer Life of Heating Element with Chromed Coating on the Heating Area
- ONE YEAR WARRANTY: Contains 2 × 13-9/16inch Water Heater Element with Gaskets, 3500W@208V
- ONE YEAR WARRANTY: 1× Upper Water Heater Thermostat, 1× Lower Water Heater Thermostat. Temperature Adjustment Range: 90F-150F, high limit at 170F. 120V ~ 480V. Restores efficiency and improves energy consumption of water heaters
- Versatile Fits: The Tune-up kits fits most water heaters with dual elements or capacity ≥ 30 Gallons, comapatible with A.O Smith, Whirlpool, GE, Richmond, Ruud, Bradford White; Craftmaster; General Electric; Gs Wood; Kenmore; Lochinvar; Reliance...
- More Practical: Therm-O-Disc Type Thermostat, Can interchange with APCOM type.We also chrome-coated the heating zone to extend the life of the heating element. EWH-01 Electric Water Heater Tune-Up Kit is constructed of high-quality materials to ensure...
- ✅DESIGN- Designed to fit most brands of water heaters. Upper thermostat for dual element water heaters such as American, Craftmaster, Rheem, Richmond, GE, Kenmore, Bradford White, AO Smith, Whirlpool and Reliance.
- ✅QUALITY- Features a built-in safety switch to help prevent the water heater from overheating.
- ✅FUNCTIONALITY- Adjustable temperature range of 90-degrees F to 150-degrees F. The 59T/66T thermostat is equipped with a single pull, double throw (SPDT) Therm-O-Disc style switch that only has a single input and can connect to, and switch between...
- ✅EASY INSTALLATION- The thermostat includes all necessary parts for an easy installation.
- Wide Compatibility: 232282 232306 RV Water Heater Thermostat Limit Switch Kit Compatible with Suburban RV Water Heaters SW Series, replaces 232306 233534, 525002, 525007, 232282 ，the replacement for Suburban SW6D water heater thermostat is compatible...
- Functional Fix: 232306 232282 Thermostat Water Heater Limit Switch Resolves issues such as RV water heater thermostat failure, abnormal heating, and inability to regulate temperature. Quickly restores the water heater's temperature control and safety...
- Dual-Temperature Control Design: The 120VAC 232306 thermostat switch offers an automatic adjustment range of 113°F - 140°F, while the 12VDC 232282 thermostat switch provides an automatic adjustment range of 122°F - 140°F. This design precisely...
- 232306 & 232282 RV Water Heater Thermostat Kit: Package includes 1 x 232306 water heater limit switch, 1 x 232282 water heater limit switch, 1 x power control switch, 2 x wire nuts, and 4 x terminal wires. One kit provides everything needed for repairs...
- Water Heater Thermostat Number WH10A.
- Temperature Range 110-170*F. With adjustable slotted knob.
- Has Hi Limit Reset Button (L180).
- Designed to be used with the Upper Heating Element of the Water Heater.
- REPLACEMENT THERMOSTAT: Replacement thermostat designed for use with double element water heaters
- THERM-O-DISC STYLE DESIGN: 59T SPST Therm-O-Disc style thermostat designed to control one circuit
- ADJUSTABLE TEMPERATURE RANGE: Adjustable temperature range from 90 degrees F to 150 degrees F for temperature control
- BUILT-IN SAFETY SWITCH: Equipped with a built-in safety switch that helps prevent the water heater from overheating
This article is part of our complete guide Major Appliances — browse all our comparisons and buying guides.
Last update on 2026-10-17 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Water Heater Replacement Thermostats
Understanding Thermostat Types and Compatibility
When replacing a water heater thermostat, the primary consideration is compatibility with your existing unit. Electric water heaters typically use either Therm-O-Disc (T-O-D) style or APCOM type thermostats. Products like the NISHCON EWH-00 and DROMIX EWH-01 are often designed for universal fit, claiming interchangeability between T-O-D and APCOM types, which simplifies the selection process. However, specific models like the Apcom WH10-A are explicitly designed for particular brands, such as Bradford White, requiring careful verification of your water heater's make and model to ensure a precise match. Mismatched thermostat types can lead to improper operation or even damage to the heating elements.
Evaluating Safety Features
A crucial aspect of any replacement thermostat is its integrated safety mechanisms. Many modern thermostats, including the Eastman 60172N and NISHCON EWH-00, incorporate a built-in safety switch. This feature is designed to prevent the water heater from overheating, which can be a significant safety concern. This high-limit switch, often referred to as a thermal cut-off (TCO), automatically interrupts power to the heating elements if the water temperature exceeds a safe threshold. Users should prioritize thermostats that explicitly mention these safety features, as they provide an essential layer of protection for the appliance and household.
Single vs. Double Element Systems and Kits
Water heaters can operate with a single heating element or, more commonly, with double elements (upper and lower). If your water heater has two elements, you will need both an upper and a lower thermostat. Products like the NISHCON EWH-00 and DROMIX EWH-01 are convenient as they include both components, often in a non-simultaneous configuration where the upper thermostat controls the lower element only after the upper tank is heated. For those needing a more comprehensive overhaul, 'tune-up kits' such as the DROMIX EWH-01 are available, which typically include not only both thermostats but also new heating elements. This can be a cost-effective approach if both elements and thermostats are nearing the end of their lifespan, ensuring all critical heating components are refreshed simultaneously.
Temperature Control and Adjustability
While most thermostats maintain a factory-set temperature range, some units offer manual adjustability, providing users with more control over their hot water supply. The Eastman 60172N, for instance, features an adjustable temperature range of 90-degrees F to 150-degrees F. This flexibility allows users to fine-tune their water temperature, balancing comfort with energy efficiency. Thermostats with specific mentions of their operating style, such as the 59T/66T type, indicate particular design and performance characteristics. Understanding the maximum temperature limits, like the 150 degrees specified for the Rheem UV11698, is also important for safe and effective operation.
Pros & Cons
EWH-00 Water Heater Thermostat, Electric Water Heater Thermostat For Double Element Heater, Include Upper And Lower Element Thermosatat, Water Heater Replacement Parts Fit For Most Water Heaters
Pros
- Includes both upper and lower thermostats for dual element heaters, offering a complete solution.
- Features a built-in safety switch to prevent overheating, enhancing operational safety.
- Designed for broad compatibility, fitting most electric water heaters and universal for TOD & APCOM types.
Cons
- Does not include heating elements, requiring separate purchase if needed.
- Specific temperature range adjustability is not detailed in product descriptions.
EWH-01 Electric Water Heater Tune-Up Kit, Includes Two Water Heater Thermostats, Two Water Heater Heating Elements - 4500W 240V, T-O-D Style Thermostat, Water Heater Replacement Parts
Pros
- Comprehensive 'tune-up kit' includes both thermostats and two 4500W 240V heating elements.
- Thermostats are interchangeable with both Therm-O-Disc and APCOM types, ensuring wide compatibility.
- Provides a one-year warranty, suggesting manufacturer confidence in product durability.
Cons
- The kit's wattage (4500W) may not be suitable for all water heater element requirements.
- Installation of both elements and thermostats can be more complex than just replacing a single thermostat.
Eastman 60172N Double Throw Upper Element Thermostat for Water Heaters, Black
Pros
- Features an adjustable temperature range from 90-degrees F to 150-degrees F, offering user control.
- Equipped with a built-in safety switch to help prevent water heater overheating.
- Designed to fit most brands of water heaters, providing good compatibility for upper elements.
Cons
- Only includes the upper element thermostat, requiring a separate lower thermostat if needed.
- Specific details on compatibility beyond 'most brands' are not extensively provided.
Common Mistakes to Avoid
Overlooking Thermostat Type and Brand Specificity
A common pitfall is failing to verify the specific type of thermostat required by your water heater. Products like the Apcom WH10-A are explicitly for Bradford White units, and attempting to install it in a different brand will likely result in incompatibility. While many universal options, such as the NISHCON EWH-00, claim compatibility with both T-O-D and APCOM types, always confirm your existing thermostat's style to avoid installation issues or incorrect operation.
Ignoring Dual Element Requirements
Many electric water heaters utilize both an upper and a lower heating element, each controlled by its own thermostat. A mistake often made is purchasing only a single thermostat (e.g., the Eastman 60172N upper thermostat) when both are needed for proper function. If your heater is a 'double element heater,' as described for the NISHCON EWH-00, ensure you acquire both an upper and a lower thermostat for complete functionality.
Neglecting Comprehensive 'Tune-Up' Opportunities
When a thermostat fails, it can sometimes be a symptom of broader wear, including aging heating elements. Choosing to replace only the thermostat when a 'tune-up kit' like the DROMIX EWH-01 is available can be a missed opportunity. This kit includes both thermostats and new 4500W 240V heating elements, providing a more thorough refresh that could prevent future failures of related components shortly after a thermostat replacement.
Disregarding Built-in Safety Features
Some replacement thermostats, such as the Rheem UV11698, focus on basic functionality. Failing to choose a thermostat with robust safety features, like the built-in safety switch found in the Eastman 60172N or NISHCON EWH-00, can compromise the water heater's ability to prevent dangerous overheating situations. Always verify the presence and functionality of high-limit cut-off mechanisms for enhanced safety.
