30 Gal. Tall Direct Vent Water Heater, Residential, Gas, 30,000 BTU

Rheem Professional Classic 30-Gallon Direct Vent Water Heater – 30,000 BTU, Natural Gas

The Rheem PROG30-30N-RH63-MHDV is a 30-gallon direct vent natural gas water heater designed for installations in spaces where indoor combustion air is not permitted. With a 30,000 BTU input and a recovery rate of 30.3 gallons per hour at a 90°F rise, this unit delivers consistent hot water for smaller residential applications or limited space installations.

This model features a sealed-combustion, coaxial venting system that draws air from the outside and discharges combustion gases directly outdoors, ensuring it meets requirements for tightly sealed or confined spaces. It includes an electronic gas control with integrated diagnostics, push-button ignition, and maintenance-free operation with no filters to clean.

Technical Specifications

• Fuel Type: Natural Gas
• Tank Capacity: 30 gallons
• Input: 30,000 BTU/hr
• Recovery Rate: 30.3 GPH at 90°F temperature rise
• Energy Factor: 0.63 EF (compliant with NAECA standards)
• Venting Type: Direct Vent (horizontal or vertical through-the-wall coaxial system)
• Water Connections: 3/4" NPT (top-mounted)
• Ignition: Push-button pilot with electronic gas valve
• Tank Protection: Fused glass lining with anode rod
• Diameter: 17-3/4 inches
• Height (approx.): Varies based on vent configuration
• Warranty: 6-year limited warranty on tank and parts

Installation Guidelines

This unit is suitable for direct vent installations where atmospheric or power vent models are not acceptable due to air supply limitations or code requirements. The venting system supports horizontal or vertical terminations and includes a coaxial pipe design for intake and exhaust. Professional installation is required to ensure correct vent routing, clearances, gas sizing, and adherence to local codes.

Contractor Notes

The PROG30-30N-RH63-MHDV is ideal for retrofit projects or new construction where a smaller tank is acceptable and venting flexibility is required. It provides reliable performance in sealed or tight mechanical rooms and is compliant with current energy efficiency and emissions standards. The integrated diagnostics and maintenance-free combustion air system simplify service and reduce long-term operating costs.