MRCOOL HeatWise 4500W Tall Electric Tank Water Heater 40 Gallon MTWH04540ET

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.

Technical Specifications

Product Documentation

Installation Manual | Warranty | AHRI Certs