We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
1-800-397-1392
Today's Hours 8am - 11pm estThe MRCOOL HeatWise 4500 Watt Tall Electric Tank Water Heater – 40 Gallon Capacity is a premium residential water heating solution engineered to deliver dependable hot water performance, long-term durability, and efficient operation in a traditional tall tank design. Built for homeowners who need a consistent hot water supply with a standard vertical footprint, this model combines MRCOOL’s advanced HeatWise technology with robust internal protection systems to ensure reliable performance day after day. Designed for residential installations in basements, utility rooms, garages, and mechanical spaces with standard ceiling height, this 40-gallon tall electric water heater provides an excellent balance of capacity, efficiency, and installation flexibility. It is an ideal choice for small to medium-sized households seeking dependable hot water for showers, laundry, dishwashing, and everyday household use.
The MRCOOL HeatWiseâ„¢ Electric Tank Water Heater is backed by a comprehensive warranty package for long-term peace of mind. It includes a 10-Year Limited Tank Warranty and a 10-Year Parts Warranty, helping protect your investment against manufacturing defects and component failures. In addition, a 1-Year Limited Labor Warranty provides coverage for eligible labor costs during the first year of ownership. This extensive warranty coverage reflects MRCOOL's commitment to reliability, durability, and dependable hot water performance for years to come.
Refer to the manufacturer's manual for full warranty details.At the core of the system is a high-performance 4500-watt heating element that rapidly heats water and delivers dependable recovery rates. This powerful heating capability allows the tank to replenish hot water quickly after periods of high demand, reducing wait times and ensuring a more consistent supply throughout the day. Built for long-term reliability, the MRCOOL electric water heater incorporates multiple layers of protection against corrosion, scale buildup, and sediment accumulation. The anti-bacterial enamel-lined tank helps maintain cleaner water storage conditions while protecting the interior tank surface from corrosion. A ceramic-coated heating element minimizes mineral buildup and improves heating efficiency, helping extend component life and maintain performance over time. The system also features a rare-earth anode rod, which provides enhanced corrosion protection compared to traditional anode rods. This advanced design helps safeguard the tank from internal deterioration and contributes to a longer service life.



