Rheem Professional Classic Electric Short Water Heaters
Residential Electric Water Heaters
Product Overview
The Rheem Professional Classic® electric short (lowboy) water heaters with side water connections are engineered for longer life, featuring resistored heating elements and a premium grade anode rod.
A Rheem Professional Classic electric short (lowboy) water heater is shown, featuring side water connections.
Key Features & Benefits
Efficiency
- UEF: 0.92 - 0.94
- Isolated tank design reduces conductive heat loss.
- Resistored stainless steel upper and lower heating elements to prolong anode rod and tank life.
Performance
- First Hour Rating (FHR): 48 - 59 gallons, based on gallon capacity.
- Recovery: Up to 28 GPH at a 90° F rise, depending on model.
Longer Life
- Premium grade anode rod provides long-lasting tank protection.
Features
- Electric junction box located above heating elements for easy installation.
- Over-temperature protector cuts off power in excess temperature situations.
- Automatic thermostat keeps water at desired temperature.
- Side water connections convenient for vertically constrained spaces.
- Enhanced-flow brass drain valve.
- Temperature and pressure relief valve included.
- Models are compliant to HUD Standards for manufactured housing and modular construction.
- Low lead compliant.
Warranty
- 6-Year limited tank and parts warranty*.
*See Residential Warranty Certificate for complete information.
Compliance
Units meet or exceed ANSI requirements and have been tested according to the AHRI Operations Manual and D.O.E. procedures. Units meet or exceed the energy efficiency requirements of NAECA, ASHRAE standard 90, ICC Code and all state energy efficiency performance criteria.
Specifications
| Type | Nominal Gallon Capacity | Rated Gallon Capacity | Model Number | Wattage | First Hour Rating (Gallons) | Recovery (GPH @ 90° F Rise) | Tank Height (A) | Height to Inlet (B) | Height to Outlet (C) | Height to Relief Valve (D) | Diameter | Approx. Ship Wt. (LBS.) | Uniform Energy Factor (UEF) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Short | 28 | 26 | PROE28 S2 RH93 SB | 4500 | 48 | 21 | 30 in. | 7-1/8 in. | 22-3/8 in. | 22-3/8 in. | 19-3/4 in. | 97 | 0.92 |
| Short | 28 | 26 | PROE28 S2 RH93 SB-HO | 5500 | 53 | 25 | 30 in. | 7-1/8 in. | 22-3/8 in. | 22-3/8 in. | 19-3/4 in. | 97 | 0.94 |
| Short | 38 | 35 | PROE38 S2 RH93 SB | 4500 | 55 | 28 | 31-1/2 in. | 6-7/8 in. | 23-1/4 in. | 24-3/8 in. | 23 in. | 128 | 0.93 |
| Short | 38 | 35 | PROE38 S2 RH93 SB | 5500 | 56 | 28 | 31-1/2 in. | 6-7/8 in. | 23-1/4 in. | 24-3/8 in. | 23 in. | 128 | 0.93 |
| Short | 38 | 35 | PROE38 S2 RH93 SB | 6000 | 59 | 28 | 31-1/2 in. | 6-7/8 in. | 23-1/4 in. | 24-3/8 in. | 23 in. | 128 | 0.94 |
Uniform Energy Factor (UEF) and rated gallon capacity based on Department of Energy (DOE) requirements.
Insulation blanket required to meet UEF Value. Water heater dimensions are prior to installing insulation blanket that is included with water heater. The blanket adds 2-1/2 inches to tank height and 4 inches to tank diameter.
All models equipped with heat traps.
If heating elements of different wattages than those shown are demanded by zone requirements, they must be specifically requested.
Recovery calculations are based on elements used in non-simultaneous operation.
Example Recovery Calculation: 4500W / (2.42 * 90°F) = 21 GPH. Example Recovery Calculation: 5500W / (2.42 * 90°F) = 25 GPH. Example Recovery Calculation: 6000W / (2.42 * 90°F) = 28 GPH.
Diagram showing water heater dimensions: A (Tank Height), B (Height to Inlet), C (Height to Outlet), D (Height to Relief Valve), and Diameter.
Company Information
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
Rheem Water Heating
1115 Northmeadow Parkway, Suite 100
Roswell, Georgia 30076
www.rheem.com
