MRCOOL® 40-Gallon 4500-Watt Electric Tank Water Heater – High-Efficiency, Self-Cleaning, Rare-Earth Anode, 10-Year Warranty- MTWH04540E

Product Description 

 

Short Description 

The MRCOOL® MTWH04540E 40-Gallon Electric Tank Water Heater delivers powerful, reliable hot water with a 4500-watt heating element, advanced corrosion protection, and a space-efficient design. Built with a dual stainless steel tank, ceramic-coated heating element, and patented Rare Earth Anode rod, this unit is engineered for long service life, fast recovery, and dependable residential performance.

 

Long Product Description 

The MRCOOL® 40-Gallon Electric Tank Water Heater (Model MTWH04540E) is designed for homeowners who need higher hot-water capacity, dependable recovery performance, and long-term durability. Ideal for medium-sized households, this electric tank water heater provides a consistent supply of hot water for showers, laundry, dishwashing, and everyday household use.

At the heart of this unit is a dual stainless steel tank paired with a ceramic-coated heating element, delivering up to 50% greater corrosion resistance compared to standard steel tanks. This advanced construction helps extend tank life, improve reliability, and reduce long-term maintenance concerns. An anti-bacterial tank lining and self-cleaning function help minimize sediment buildup and maintain cleaner hot water over time.

Powered by a high-efficiency 4500-watt electric heating element, the MRCOOL MTWH04540E heats water quickly and shortens recovery time between uses. The unit operates on 208/240V single-phase power, making it compatible with most residential electrical systems.

Despite its larger 40-gallon capacity, this water heater maintains a compact, space-saving footprint, allowing installation in utility rooms, closets, garages, and other tight spaces. Simple, user-friendly temperature controls allow easy adjustment for comfort and energy efficiency.

Backed by a 10-year tank warranty, 10-year parts warranty, and 1-year limited labor warranty, the MRCOOL® 40-Gallon Electric Tank Water Heater is a smart, long-term solution for reliable hot water in today’s homes.

 

 Key Features & Benefits 

✔ 40-Gallon Electric Tank Water Heater – Ideal for medium households

✔ 4500-Watt Heating Element – Fast recovery and consistent hot water

✔ Dual Stainless Steel Tank – Enhanced durability and corrosion resistance

✔ Ceramic-Coated Heating Element – Longer lifespan and efficiency

✔ Patented Rare Earth Anode Rod – Reduced tank wear and maintenance

✔ Self-Cleaning Function – Helps prevent sediment buildup

✔ Anti-Bacterial Tank Design – Cleaner hot water

✔ 208/240V Single-Phase Power – Residential ready

✔ UL Listed & AHRI Certified – Safety and performance verified

✔ 10-Year Tank & Parts Warranty – Long-term peace of mind

 

Technical Specifications 

Brand: MRCOOL

Series: Electric Tank Water Heater

Capacity: 40 Gallons

Heating Power: 4500 Watts

Voltage: 208 / 240V

Phase: Single Phase

Frequency: 60 Hz

Max Breaker Size: 30 Amps

Minimum Circuit Ampacity: 20 Amps

Color: Grey

UL Listed: Yes

AHRI Certified: Yes

Contains Electronics: Yes

Proposition 65 Warning: Yes

Dimensions & Weight

• Net: 21.6” W × 21.6” D × 45.5” H
• Net Weight: 114.6 lbs
• Shipping: 25.2” W × 25.2” D × 49.5” H
• Shipping Weight: 127.8 lbs

 Warranty 

• Tank Warranty: 10 Years
• Parts Warranty: 10 Years
• Labor Warranty: 1 Year Limited

 

Why Buy From MRCOOL DIRECT?

When you order from MRCOOL Direct, you get:

• ✅ Authorized MRCOOL® dealer – Your warranty is protected
• ✅ Factory-fresh units – No refurbished or mystery sources
• ✅ Fast U.S. shipping – Most in-stock items ship in 1–3 business days
• ✅ Financing options – Make high-efficiency comfort more affordable
• ✅ Real product support – Help with sizing, line set selection, and DIY questions
• ✅ No third-party marketplace middlemen – Just genuine MRCOOL® systems from a trusted MRCOOL® dealer.

BUY DIRECT!

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615-553-8118

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