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MRCOOL

MRCOOL HeatWise 4500 Watt Tall Electric Tank Water Heater - 40 Gallon Capacity

MTWH04540ET

208/230V

Part of Electric Tank Water Heater

Power
208/230V30A breaker

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About this product

The MRCOOL® HeatWise™ Tall 40-Gallon Electric Tank Water Heater is a dependable solution for delivering consistent hot water throughout your home. Engineered for durability and energy savings, this unit helps lower utility costs while providing reliable performance—making it a smart and eco-friendly choice for today’s households. With high-efficiency heating elements, the system heats water quickly to your desired temperature, minimizing wait times. Its dual stainless steel construction combined with a ceramic-coated heating element delivers up to 50% greater corrosion resistance, promoting a longer-lasting, low-maintenance system. Additional built-in features—such as an anti-bacterial tank and a patented Rare Earth Anode rod—help ensure peak efficiency and long-term reliability. Designed with a tall, slim profile, this water heater easily fits into narrow spaces like closets or utility rooms, making it a flexible option for homes with limited installation space. User-friendly temperature controls allow for easy adjustments, while its ultra-quiet operation keeps noise to a minimum. Integrated safety features offer protection from overheating, dry firing, and pressure buildup, giving you added confidence and comfort. Backed by a 10-year parts warranty, 10-year tank warranty, and a 1-year limited labor warranty, the MRCOOL® Electric Tank Water Heater delivers peace of mind, efficiency, and long-lasting hot water performance for years to come.

Documents & manuals

Specifications

Capacity & efficiency
TypeSpecialty
SeriesElectric Tank Water Heater
Electrical
Voltage208/230V
Phase1-phase
Min. circuit ampacity (MCA)18.7 A
Max. breaker (MOP)30 A
Physical
Dimensions (in)19.35 W × 19.35 D × 59.93 H
Weight121.25 lb
Shipping weight132.28 lb
ColorGrey
Certifications, warranty & ordering
AHRI certifiedYes
Safety listingUL
Parts warranty10 years
UPC840255592024