Rheem Water Heater

Rheem Prestige Series
94% Condensing Tankless Outdoor

Rheem Prestige RTGH is a series of high efficiency condensing tankless gas water heaters designed for continuous hot water.


Product Features


- 94% Energy efficient with stainless steel condensing heat exchanger

- Intelligent electronic controls designed to increase energy efficiency and safety

- Third party efficiency listed by AHRI


- Industry First! 0.26 GPM minimum flow rate, 0.40 GPM minimum activation flow rate

- RTGH-95 for 3 bathroom homes*– 9.5 gal./min. at 35°F rise max., 8.4 gal./min. at 45°F rise SCAQMD rule 1146.2 compliant

- RTGH-84 for 2-3 bathroom homes*– 8.4 gal./min. at 35°F rise max., 6.6 gal./min. at 45°F rise

Compact Size

- Compact space saving design – about the size of a medicine cabinet

Self-Diagnostic System

- Self-diagnostic system for easy installation and service.

- Digital display shows temperature setting and maintenance codes


- Two-pipe direct vent system designed for PVC pipe, see instructions for details

- Built-in electric blower

- Exclusive! Guardian overheat film wrap (OFW)

- EZ-Link cable available for higher demand applications to connect two tankless units to operate as one

- Manifold up to six units with an optional MIC-6 manifold control board

- Manifold up to 20 units with the optional MIC-185 plus the MICS-180 manifold control assembly

High Altitude Compliant

- High-altitude capability – up to 9,840 ft. elevation above sea level