MRCOOL
MRCOOL HeatWise 4500 Watt Low Electric Tank Water Heater - 28 Gallon Capacity
MTWH04528EL
208/230V
Part of Electric Tank Water Heater
- Power
- 208/230V30A breaker
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About this product
The MRCOOL® HeatWise™ Low Boy 28-Gallon Electric Tank Water Heater delivers reliable, energy-efficient hot water designed to meet daily household demands. Built with durability and performance in mind, this compact unit helps reduce energy consumption while ensuring dependable operation—making it a practical and eco-friendly choice for today’s homes. Featuring high-efficiency heating elements, the system rapidly heats water to your preferred temperature, minimizing wait times and improving convenience. Its dual stainless steel tank and ceramic-coated heating element provides up to 50% more corrosion resistance than traditional designs, offering extended longevity and reduced maintenance. With added enhancements like an anti-bacterial tank, self-cleaning functionality, and a patented Rare Earth Anode rod, this unit promotes clean, efficient operation throughout its lifespan. Its low-profile, compact design is ideal for areas with limited vertical clearance—such as under counters, stairwells, or in tight utility closets. User-accessible temperature controls offer easy customization, while its ultra-quiet operation keeps noise levels at a minimum. Built-in safety features guard against overheating, dry firing, and excessive pressure for added confidence and security. Supported by a 10-year parts warranty, 10-year tank warranty, and a 1-year limited labor warranty, the MRCOOL® Low Boy Electric Tank Water Heater offers the perfect blend of compact size, high performance, and long-lasting reliability.
Documents & manuals
Specifications
| Type | Specialty |
|---|---|
| Series | Electric Tank Water Heater |
| Voltage | 208/230V |
|---|---|
| Phase | 1-phase |
| Min. circuit ampacity (MCA) | 18.7 A |
| Max. breaker (MOP) | 30 A |
| Dimensions (in) | 20.05 W × 20.05 D × 30.1 H |
|---|---|
| Weight | 81.57 lb |
| Shipping weight | 99.21 lb |
| Color | Grey |
| AHRI certified | Yes |
|---|---|
| Safety listing | UL |
| Parts warranty | 10 years |
| UPC | 840255592000 |

