# Navien NPE-240A2 vs Stiebel Eltron Tempra 36 Plus: specs and price compared

A sourced, side-by-side comparison of the Navien NPE-240A2 (Navien) and Stiebel Eltron Tempra 36 Plus (Stiebel Eltron) among tankless water heaters. Stiebel Eltron Tempra 36 Plus is the cheaper of the two at $1132.

## Side by side

| Spec | Navien NPE-240A2 | Stiebel Eltron Tempra 36 Plus |
| --- | --- | --- |
| US price | $2099 | $1132 |
| Brand | Navien | Stiebel Eltron |
| Fuel type | natural-gas | electric |
| Max flow rate gpm | 11.2 | 8.2 |
| Max btu per hour | 199900 | — |
| Power input (kW) | — | 36 |
| Uniform energy factor | 0.95 | — |
| Condensing type | condensing | electric |
| Min activation flow gpm | 0.5 | 0.77 |
| Vent type | pvc | none |
| Max temp f | — | 140 |
| Heat exchanger warranty yrs | 15 | 7 |
| Wi-Fi enabled | No | No |
| Weight (lb) | 77 | 17.6 |

## Key differences

- Fuel type: Navien NPE-240A2 natural-gas vs Stiebel Eltron Tempra 36 Plus electric
- Max flow rate gpm: Navien NPE-240A2 11.2 vs Stiebel Eltron Tempra 36 Plus 8.2
- Condensing type: Navien NPE-240A2 condensing vs Stiebel Eltron Tempra 36 Plus electric
- Min activation flow gpm: Navien NPE-240A2 0.5 vs Stiebel Eltron Tempra 36 Plus 0.77
- Vent type: Navien NPE-240A2 pvc vs Stiebel Eltron Tempra 36 Plus none
- Heat exchanger warranty yrs: Navien NPE-240A2 15 vs Stiebel Eltron Tempra 36 Plus 7
- Weight (lb): Navien NPE-240A2 77 vs Stiebel Eltron Tempra 36 Plus 17.6

## Sources

- Navien NPE-240A2: https://www.navieninc.com/products/npe-240a2 (navieninc.com, verified 2026-07-11)
- Stiebel Eltron Tempra 36 Plus: https://www.stiebel-eltron-usa.com/products/tempra-plus-whole-house-electric-tankless-water-heaters (stiebel-eltron-usa.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/tankless-water-heaters/navien-npe-240a2-vs-stiebel-eltron-tempra-36-plus/
Cite: Per The Front Desk Review, Navien NPE-240A2 ($2099) vs Stiebel Eltron Tempra 36 Plus ($1132) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/tankless-water-heaters/navien-npe-240a2-vs-stiebel-eltron-tempra-36-plus/
License: CC BY 4.0.