# Rinnai RU199iN vs EcoSmart ECO 24: specs and price compared

A sourced, side-by-side comparison of the Rinnai RU199iN (Rinnai) and EcoSmart ECO 24 (EcoSmart) among tankless water heaters.

## Side by side

| Spec | Rinnai RU199iN | EcoSmart ECO 24 |
| --- | --- | --- |
| US price | not published | $525 |
| Brand | Rinnai | EcoSmart |
| Fuel type | natural-gas | electric |
| Max flow rate gpm | 11 | — |
| Max btu per hour | 199000 | — |
| Power input (kW) | — | 24 |
| Uniform energy factor | 0.95 | — |
| Condensing type | condensing | electric |
| Min activation flow gpm | — | 0.3 |
| Vent type | — | none |
| Max temp f | — | 140 |
| Heat exchanger warranty yrs | 15 | — |
| Wi-Fi enabled | No | No |
| Weight (lb) | 64 | 14.25 |

## Key differences

- Fuel type: Rinnai RU199iN natural-gas vs EcoSmart ECO 24 electric
- Condensing type: Rinnai RU199iN condensing vs EcoSmart ECO 24 electric
- Weight (lb): Rinnai RU199iN 64 vs EcoSmart ECO 24 14.25

## Sources

- Rinnai RU199iN: https://www.rinnai.us/residential/product-detail/ru199in (rinnai.us, verified 2026-07-11)
- EcoSmart ECO 24: https://www.ecosmartus.com/product/ecosmart-ECO-24-24-kW-Electric-Tankless-Water-Heater (ecosmartus.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/tankless-water-heaters/rinnai-ru199in-vs-ecosmart-eco-24/
Cite: Per The Front Desk Review, Rinnai RU199iN (not published) vs EcoSmart ECO 24 ($525) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/tankless-water-heaters/rinnai-ru199in-vs-ecosmart-eco-24/
License: CC BY 4.0.