Midea JSG48-29PCH-LP vs Navien NPE-240S2
The Navien NPE-240S2 is the more efficient unit: UEF 0.96 versus 0.95 — about 1% less energy for the same hot water. At national average rates that works out to about $255/year for the Navien NPE-240S2 against $516/year for the Midea JSG48-29PCH-LP — a $261 annual difference. The Navien NPE-240S2 sustains the higher flow (5.8 GPM vs 5.2 GPM under the DOE test).
| Midea JSG48-29PCH-LP | Navien NPE-240S2 | |
|---|---|---|
| Uniform Energy Factor (UEF) | 0.95 | 0.96 |
| Fuel | Propane | Natural Gas, Propane |
| Max flow rate | 5.2 GPM | 5.8 GPM |
| Draw pattern | High | High |
| Annual gas use (natural gas) | 175 therms/yr | 176 therms/yr |
| Gas input rate | 180 kBTU/h | 199 kBTU/h |
| Max current draw | 1.3 A | 5 A |
| Vent type | Power Direct Vent | Power Direct Vent |
| Recovery efficiency | 0.99 % | — |
| Smart / connected capable | No | No |
| Minimum activation flow | 0.6 GPM | 1 GPM |
| Annual propane use | 191.25 gal/yr | 192.35 gal/yr |
| Vent size | 2 / 3 | 2 |
| Height | 26.8 in | 27 in |
| Width | 17.3 in | 17 in |
| Depth | 11 in | 13 in |
| ENERGY STAR certified | Yes | Yes |
Frequently asked questions
Which costs less to run, the Midea JSG48-29PCH-LP or the Navien NPE-240S2?
The Navien NPE-240S2: about $255/year versus $516/year for the Midea JSG48-29PCH-LP at national average rates — a $261 annual difference.
Are the Midea JSG48-29PCH-LP and Navien NPE-240S2 both ENERGY STAR certified?
Yes — every water heater in this database is drawn from the U.S. EPA ENERGY STAR certified water heater datasets.