# Rinnai RU199iN vs Navien NPE-240A2: specs and price compared

A sourced, side-by-side comparison of the Rinnai RU199iN (Rinnai) and Navien NPE-240A2 (Navien) among tankless water heaters.

## Side by side

| Spec | Rinnai RU199iN | Navien NPE-240A2 |
| --- | --- | --- |
| US price | not published | $2099 |
| Brand | Rinnai | Navien |
| Fuel type | natural-gas | natural-gas |
| Max flow rate gpm | 11 | 11.2 |
| Max btu per hour | 199000 | 199900 |
| Power input (kW) | — | — |
| Uniform energy factor | 0.95 | 0.95 |
| Condensing type | condensing | condensing |
| Min activation flow gpm | — | 0.5 |
| Vent type | — | pvc |
| Max temp f | — | — |
| Heat exchanger warranty yrs | 15 | 15 |
| Wi-Fi enabled | No | No |
| Weight (lb) | 64 | 77 |

## Key differences

- Max flow rate gpm: Rinnai RU199iN 11 vs Navien NPE-240A2 11.2
- Max btu per hour: Rinnai RU199iN 199000 vs Navien NPE-240A2 199900
- Weight (lb): Rinnai RU199iN 64 vs Navien NPE-240A2 77

## Sources

- Rinnai RU199iN: https://www.rinnai.us/residential/product-detail/ru199in (rinnai.us, verified 2026-07-11)
- Navien NPE-240A2: https://www.navieninc.com/products/npe-240a2 (navieninc.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/tankless-water-heaters/rinnai-ru199in-vs-navien-npe-240a2/
Cite: Per The Front Desk Review, Rinnai RU199iN (not published) vs Navien NPE-240A2 ($2099) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/tankless-water-heaters/rinnai-ru199in-vs-navien-npe-240a2/
License: CC BY 4.0.