Rheem RTG-95DV
#4 in GasFull review
A whole home indoor heater for buyers who want maximum burner size without the condensate drain of a condensing unit.
Amazon $1,201.29$1,201.29
The Rheem RTG-95DV is the better tankless water heater overall, rated 4.1 to 4.0. The Rheem RTG-95DV costs $79.50 less ($1,201.29 vs $1,280.79).
Rinnai RE199i
#10 in GasFull review
A dependable whole home heater for buyers who want Rinnai power at a lower price than a condensing model and have room for metal venting.
Amazon $1,280.79 Amazon $1,412.82$1,280.79
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every gas tankless water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Rheem RTG-95DV | Rinnai RE199i |
|---|---|---|
| Overall rating | 4.1/5 | 4.0/5 |
| Value 35% | 63 $6.01 per 1,000 BTU/h ($1,201.29, 199,900 BTU/h) | 57 $6.44 per 1,000 BTU/h ($1,280.79, 199,000 BTU/h) |
| Heating power 25% | 100 199,900 BTU/h | 100 199,000 BTU/h |
| Efficiency 15% | 12 0.82 UEF | 12 0.82 UEF |
| Warranty 25% | 100 15-year heat exchanger warranty | 100 15-year heat exchanger warranty |
Specifications
| Rheem RTG-95DV | Rinnai RE199i | |
|---|---|---|
| Heating | ||
| Fuel | Gas | Gas |
| Gas type | Natural gas or propane | Natural gas or propane |
| Gas input | 11,000 to 199,900 BTU/h | 10,400 to 199,000 BTU/h |
| Max flow | 9.5 GPM | 9.8 GPM |
| UEF | 0.82 | 0.82 |
| Condensing | No | No |
| ENERGY STAR | - | No |
| Installation | ||
| Venting | Indoor | Indoor |
| Vent type | 3 in x 5 in concentric Category III stainless | 3 in x 5 in concentric |
| Weight | 46.5 lb | 42.1 lb |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | No |
| Heat exchanger warranty | 15 years | 15 years |
| Parts warranty | 5 years | 5 years |