The verdict
The Tempra 36 Plus is the best-overall pick — Stiebel Eltron's flow control handles whole-home demand without cold-water sandwiching.
Stiebel Eltron Tempra 36 Plus
Strengths
- +Advanced Flow Control prevents cold-water sandwiching
- +36 kW max — handles whole-home demand in mild climates
- +10-year combined warranty
- +German-engineered reliability
Watch-outs
- −Requires 200A electrical service for full output
- −No Wi-Fi
- −Plumbing install required
How it compares
Best whole-home pick. German engineering. Highest amperage required.
Who this is for
At a glance: whole-home electric tankless installs in mild climates.
Why you’d buy the Stiebel Eltron Tempra 36 Plus
- Advanced Flow Control prevents cold-water sandwiching.
- 36 kW max — handles whole-home demand in mild climates.
- 10-year combined warranty.
Why you’d skip it
- Requires 200A electrical service for full output.
- Plumbing install required.
Rating sources
Our 4.8 score is the average of these published ratings. More about methodology.

