MRCOOL
MRCOOL HeatWise™ 4500 Watt Low Electric Tank Water Heater - 38 Gallon Capacity
208/240V
Key Specifications
Product Overview
The MRCOOL® HeatWise™ Low Boy 38-Gallon Electric Tank Water Heater provides consistent, energy-efficient hot water tailored to meet the daily needs of any home. Engineered for strength and reliability, this compact model helps lower energy usage without compromising performance—making it a smart and environmentally responsible solution for modern households.
Outfitted with high-efficiency heating elements, the unit quickly reaches your desired temperature, reducing wait times and enhancing everyday comfort. Its dual stainless steel tank and ceramic-coated heating element delivers up to 50% greater resistance to corrosion compared to standard systems—offering increased durability and reduced upkeep. Additional premium features, including an anti-bacterial tank, built-in self-cleaning function, and patented Rare Earth Anode rod, support long-term efficiency and clean water quality.
With a low-profile design, the heater is perfect for installations in spaces with restricted vertical clearance—like beneath countertops, inside short closets, or under stairwells. Easy-access temperature controls make adjustments simple, while the whisper-quiet operation ensures minimal noise. Integrated safety protections against overheating, dry firing, and pressure buildup provide added peace of mind.
Covered by a 10-year parts warranty, 10-year tank warranty, and 1-year limited labor warranty, the MRCOOL® Low Boy Electric Tank Water Heater combines compact convenience, powerful performance, and dependable longevity you can count on.
Additional specifications
| UPC | 840255592017 |
|---|---|
| Series | Electric Tank Water Heater |
| Cycle (Hz) | 60 |
| Min circuit ampacity (A) | 18.7 |
| Max fuse / breaker (A) | 30 |
| AHRI certified | Yes |
| UL listed | Yes |
| Parts warranty (years) | 10 Year Parts Warranty |
| Shipping W x H x D (in) | 27.07 x 35.8 x 27.07 |
| Shipping weight (lbs) | 125.66 |
Documents
- Installation manual (PDF)
- Brochure (PDF)
- Warranty (PDF)
- AHRI certificate (PDF)
- EnergyGuide label (PDF)
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Technical Specifications
Performance
| System Type | Water Heater |
|---|
Electrical & Fuel
| Voltage | 208/240V |
|---|---|
| Phase | Single Phase |
Physical & Certifications
| Dimensions (W x H x D) | Φ22.89 x 32.15 x Φ22.89 |
|---|---|
| Weight | 108.03 lb |
| Color / Finish | Grey |
Shipping & Delivery
Manufacturer Warranty
Covered by MRCOOL's limited warranty. Warranty terms are set by MRCOOL and differ by product line — whether registration is required, and whether the installation has to be performed by a state-licensed HVAC contractor, is not the same across the range. In every case coverage depends on the unit being installed according to MRCOOL's instructions and all applicable codes and permits. MRCOOL's warranty document for this model is the controlling source; ask us and we'll send you the one that applies.
Professional Installation Recommended
Most HVAC equipment must be installed and connected by a licensed professional to remain safe, code-compliant, and eligible for manufacturer warranty coverage. If you're unsure about installation requirements, contact us before you order.
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