Vesta VRS PLUS-199
Vesta VRS PLUS-199 is a gas tankless water heater from Vesta rated 5.9 GPM at a 0.96 UEF.
| Uniform Energy Factor (UEF) | 0.96 |
|---|---|
| Annual gas use (natural gas) | 176 therms/yr |
| Recovery efficiency | 99 % |
| Annual propane use | 192.35 gal/yr |
| Fuel | Natural Gas, Propane |
|---|
| Max flow rate | 5.9 GPM |
|---|---|
| Draw pattern | High |
| Minimum activation flow | 0.5 GPM |
| Gas input rate | 199 kBTU/h |
|---|
| Max current draw | 5 A |
|---|---|
| Vent size | 2 |
| Smart / connected capable | No |
|---|
| Height | 27.6 in |
|---|---|
| Diameter | 18.1 in |
| Width | 18.1 in |
| Depth | 11.6 in |
| ENERGY STAR certified | Yes |
|---|
Real flow rate by climate
A tankless heater's usable flow depends on how far it must raise incoming water temperature. Sustained hot-water flow of the Vesta VRS PLUS-199 at common temperature rises (a typical shower uses about 2 GPM of mixed water):
| Temperature rise | Climate | Sustained flow | Simultaneous showers |
|---|---|---|---|
| 45 °F | Warm climate (~75 °F groundwater) | 5.9 GPM | 2 |
| 55 °F | Mild climate (~65 °F groundwater) | 5.9 GPM | 2 |
| 70 °F | Cold climate (~50 °F groundwater) | 5.5 GPM | 2 |
| 77 °F | DOE test condition | 5 GPM | 2 |
Similar water heaters
- A. O. Smith ATHR-199M 1 (UEF 0.95)
- A. O. Smith ATHR-199M 1 (ATHR-199X3 1) (UEF 0.95)
- A. O. Smith ATHR-199M 1 (GT15THR-199M 1) (UEF 0.95)
- A. O. Smith ATHR-199M 1 (GT15THR-199X3 1) (UEF 0.95)
- American ATHR-199M 1 (MTHR-199M 1) (UEF 0.95)
- American ATHR-199M 1 (MTHR-199X3 1) (UEF 0.95)
Frequently asked questions
Is the Vesta VRS PLUS-199 ENERGY STAR certified?
Yes, the Vesta VRS PLUS-199 holds a current ENERGY STAR certification for water heating efficiency (UEF 0.96).
How much does the Vesta VRS PLUS-199 cost to run per year?
About $255 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
Is the Vesta VRS PLUS-199 a smart water heater?
No, the Vesta VRS PLUS-199 is not connected-capable — it has no app connectivity or demand-response support.
Sources
- data.energystar.gov (retrieved 2026-07-17)