MRCOOL

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

Regular price  Sale price  $748.00 $748.00 Unit price  Sold out
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Product details

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.

Shipping and Payments

We process orders within 1-2 business days. Once your order has shipped, you will receive a confirmation email with tracking information.

Estimated Delivery Times
Standard Shipping: 3-7 business days
Expedited Shipping: 2-3 business day
Express Shipping: 1-2 business days
Delivery times may vary during holidays, promotions, or due to carrier delays.

Order Tracking

Once your order ships, you will receive a tracking number via email. Please allow up to 24 hours for tracking information to update.

Refund and returns

We want you to love your purchase. If you're not completely satisfied, you may return eligible items within 30 days of delivery.

Return Requirements

Items must be:
Unused and in original condition

Returned with original packaging
Accompanied by proof of purchase
Non-Returnable Items

The following items cannot be returned:


Gift cards
Final sale items
Personalized or custom-made products
Digital products and downloads

Technical specifications

Specifications

Full engineering data for this system. Certified performance ratings per AHRI Standard 210/240.

Model MTWH04540ET
UPC 840255592024

Electrical

Voltage 208-240V / 60Hz
Circuit breaker 30 A
MCA (min. circuit ampacity) 18.7 A

Warranty

Parts 10 years

Documents & downloads

Documents & downloads

Manuals, warranty terms and certification documents for this system.

DIY installation

Or book certified installation

Our licensed team installs what we sell - sized right, warrantied, done in a day.

Questions & answers

Before you buy

Everything homeowners ask about installing and sizing a MRCOOL system.

Can I install a water heater myself?

Water heaters involve plumbing connections and a dedicated electrical circuit, and most areas require a permit and inspection. A licensed plumber or electrician is the safe route.

What tank size do I need?

Tank size follows household size and peak hot water demand. The capacity of this model is listed in the specifications.

What power does it need?

Electric tank water heaters need a dedicated circuit sized to the element wattage. The required voltage and wattage are in the specifications on this listing.

How long should it last?

Service life depends on water quality and maintenance. Flushing the tank periodically and replacing the anode rod when it wears out will both extend it.

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