MRCOOL water heaters
17 basic models and 18 listed models.
Certified figures by basic model
| Basic model | Type | Storage volume (gal) | UEF | Flow at a 67°F rise (gal/min) | First-hour rating (gal) | Recovery efficiency | Model numbers |
|---|---|---|---|---|---|---|---|
| MEWH28L82S1 | Electric storage | 26 | 0.92 | — | 45 | 98% | MTWH04528EL |
| MEWH30S82S1 | Electric storage | 28 | 0.92 | — | 47 | 98% | MTWH04530E |
| MEWH38L82S1 | Electric storage | 35 | 0.92 | — | 54 | 98% | MTWH04538EL |
| MEWH40S82S1 | Electric storage | 37 | 0.92 | — | 55 | 98% | MTWH04540E |
| MEWH40T82S1 | Electric storage | 37 | 0.92 | — | 55 | 98% | MTWH04540ET |
| MEWH50S82S1 | Electric storage | 47 | 0.92 | — | 64 | 98% | MTWH04550E |
| MEWH50T82S1 | Electric storage | 45 | 0.92 | — | 63 | 98% | MTWH04550ET |
| MGWH199IXNN | Gas tankless | — | 0.95 | 5.7 | — | 99% | MHWH199NCLU, MHWH199NCNU |
| MHWH199NCLU | Gas tankless | — | 0.95 | 5.7 | — | 99% | MHWH199NCLU |
| MHWH199NCNU | Gas tankless | — | 0.95 | 5.7 | — | 99% | MHWH199NCNU |
| MTWH04528EL | Electric storage | 26 | 0.92 | — | 45 | 98% | MTWH04528EL |
| MTWH04530E | Electric storage | 28 | 0.92 | — | 47 | 98% | MTWH04530E |
| MTWH04538EL | Electric storage | 35 | 0.92 | — | 54 | 98% | MTWH04538EL |
| MTWH04540E | Electric storage | 37 | 0.92 | — | 55 | 98% | MTWH04540E |
| MTWH04540ET | Electric storage | 37 | 0.92 | — | 55 | 98% | MTWH04540ET |
| MTWH04550E | Electric storage | 47 | 0.92 | — | 64 | 98% | MTWH04550E |
| MTWH04550ET | Electric storage | 45 | 0.92 | — | 63 | 98% | MTWH04550ET |
A range means the models under one basic model differ. A dash means the model has no such figure.
This brand's highest UEF, the energy that reaches the water for each unit used, is 0.95. At 0.95, part of the test's energy did not reach the water. Of this brand's basic models, 3 share the highest UEF, the MGWH199IXNN among them. Of its 17 basic models, 3 list an ENERGY STAR certified model.
Its range spans 2 kinds: electric storage and gas tankless. Its electric storage basic models come to 14 of its 17. Of its tanks, 2 share the highest first-hour rating: 64 gallons. Those 64 gallons include water the tank heats while the hour runs. Of this brand's tankless models, 3 share the highest flow. The test warms the water by 67°F at 5.7 gallons per minute.
Among the 117 brands on this site, 30 list more model numbers than MRCOOL. Of the other brands, 4 list at least one of this brand's basic model numbers. Of those, Midea lists the most: 8 of this brand's 17.