The verdict
The RTEX-13 is the point-of-use pick — Rheem's compact tankless for a single sink or shower. Best for additions and outbuildings.
Rheem RTEX-13 Point-of-Use
Strengths
- +Point-of-use sized for single sink
- +Compact under-cabinet install
- +Self-modulating
- +Cheapest pick
Watch-outs
- −Single-fixture only — not whole-home
- −13 kW limits hot water flow
- −Best for additions, not retrofits
How it compares
Point-of-use only. Compact. Cheapest pick.
Who this is for
At a glance: additions, outbuildings, sheds, and single-fixture installs.
Why you’d buy the Rheem RTEX-13 Point-of-Use
- Point-of-use sized for single sink.
- Compact under-cabinet install.
- Self-modulating.
Why you’d skip it
- Single-fixture only — not whole-home.
- 13 kW limits hot water flow.
- Best for additions, not retrofits.
Rating sources
Our 4.5 score is the average of these published ratings. More about methodology.
