Recirc. Pump Kit (W/ Gasket)

Rheem RTG20319AM Recirculation Pump Kit – For Dedicated Loop and On-Demand Applications

The Rheem RTG20319AM is a manufacturer-approved recirculation pump kit engineered for use with select Rheem tankless gas water heaters. This component is designed to enable and support a dedicated hot water return loop or on-demand recirculation functionality, depending on the system configuration. The kit includes the necessary pump and sealing gasket for integration into compatible Rheem systems.

It ensures fast hot water delivery to fixtures, reducing system lag time and standby water waste in applications where recirculation is required or specified. Suitable for residential and light commercial environments, this kit is optimized for systems requiring recirculation pump support integrated at the unit level.

Component Overview

• Part Number: RTG20319AM
• Includes: Recirculation pump, gasket
• System Type: Rheem tankless natural gas or LP water heaters with recirculation compatibility
• Installation Location: Internal or external unit connection, model dependent

Installation and Configuration

This kit should be installed by a licensed professional with experience in tankless systems and hot water return line design. Proper installation ensures system code compliance, maximizes performance, and prevents premature wear due to flow imbalance or improper pump selection. Installation may require electrical supply connections, backflow prevention devices, and isolation valves as dictated by local code and system layout.

Before installing, verify model compatibility and ensure system firmware or dip switch configuration supports recirculation features (e.g., built-in pump logic or timer control).

Performance Benefits

• Reduced Wait Times: Delivers near-instantaneous hot water at fixtures located far from the heater.
• Minimized Water Waste: Circulates cooled line water back to the heater, reducing volume lost at tap during warm-up.
• System Integration: Engineered for plug-and-play connection with Rheem RTG-series units configured for pump control.
• Seal Reliability: Gasket included for proper watertight integrity at point of connection.

Contractor-Specific Considerations

Designed to reduce field time by eliminating the need for third-party components. When installed per manufacturer guidelines, this pump kit maintains Rheem warranty coverage and simplifies servicing. It supports energy efficiency improvements in homes or commercial structures with extended plumbing runs or high hot water demand timing consistency.

Use Cases

• Dedicated recirculation line installs (continuous or timer-based operation)
• On-demand or push-button recirculation setups with controller integration
• Retrofits of existing Rheem tankless units requiring faster hot water delivery to remote fixtures