Rheem Prestige Series Tankless RTGH-95XLN Outdoor
Rheem Prestige Series Tankless RTGH-95XLN Outdoor Review
The Rheem Prestige Series Tankless RTGH-95XLN Outdoor is Rheem's premium outdoor condensing tankless water heater. The "RTGH-95" identifies 9.5 GPM rated capacity in the RTGH (Rheem Tankless Gas High-efficiency) series; "XLN" identifies the outdoor exterior-mount low-NOx configuration.
Specs: 199,000 BTU natural gas input, UEF 0.93 condensing, 9.5 GPM at a 35°F rise or 4.5 GPM at a 70°F rise. Sealed direct-vent combustion (outdoor mount eliminates indoor venting). Full stainless heat exchanger. 12-year warranty on heat exchanger.
The Prestige Series is Rheem's tankless premium tier. The XLN outdoor configuration is common in California, Arizona, Texas, Florida — markets where exterior mounting is code-acceptable and saves valuable indoor space. The exterior mount eliminates indoor venting cost ($500-$1,500 savings) and frees indoor space (~10 sq ft).
Built-in freeze protection: integrated heater prevents internal freezing in cold conditions. Operating range typically -20°F to 110°F ambient.
About $2,400 unit, $3,500 installed. Right buyer: warm-climate primary residence with suitable exterior mounting location, retrofit installation where eliminating indoor venting saves significant install cost. Wrong buyer: cold-climate primary residences (freeze protection consumes electricity year-round), homes where exterior aesthetics matter.