The verdict
The RTEX-24 is the cold-climate pick — Rheem's flagship that handles northern winter inlet temps better than competitors.
Strengths
- +3,900+ reviews proving reliability
- +Excels in cold-inlet conditions (northern climates)
- +Self-modulating heating elements
- +Easy DIY install with proper voltage
Watch-outs
- −Slightly louder than Tempra under load
- −No advanced flow control
- −Smaller display
How it compares
Best for cold climates. Most user reviews. Cheaper than Tempra.
Who this is for
At a glance: northern US homes with cold groundwater inlet.
Why you’d buy the Rheem RTEX-24
- 3,900+ reviews proving reliability.
- Excels in cold-inlet conditions (northern climates).
- Self-modulating heating elements.
Why you’d skip it
- Slightly louder than Tempra under load.
- No advanced flow control.
- Smaller display.
Rating sources
Our 4.7 score is the average of these published ratings. More about methodology.
