Midea MGWH150IXNN
Midea MGWH150IXNN is in the DOE listing as of Oct 26, 2026 and is in the ENERGY STAR list as of Oct 26, 2026.
It has a certified UEF of 0.95 and a certified flow of 4.1–4.2 gal/min at a 67°F rise.
- Gas tankless water heater
- 4 listed models
Certified figures
- Flow at a 67°F rise
- 4.1–4.2gallons per minute
- UEF
- 0.95Uniform energy factor
The 4 listed models differ. A range runs from the lowest figure to the highest.
Your fixtures at once
Change your hour and flowFlow where you live
Colder incoming water needs a bigger rise, so the heater gives less flow.
- Cold water
- Cold water must be at least 10°F colder than the hot water setting.
- Flow estimate
- The estimate uses the lowest certified flow among the listed models. It is about 3.9 gal/min at a 70°F rise.
Flow limits
- The estimate excludes the flow needed to turn the heater on, heat lost in pipes, and installation.
- Cold water from a well or long pipe run can differ from the temperature you enter.
- Without a stated flow limit, estimates for warmer water may exceed the heater’s actual flow.
Product history
Midea MGWH150IXNN was in the DOE listing by Oct 1, 2026.
Midea MGWH150IXNN changed its certified flow at a 67°F temperature rise (gallons per minute) for model MGWH150IXPP from 4 to 4.4 in the ENERGY STAR list between February 2026 and August 2026.
Midea MGWH150IXNN changed its certified flow at a 67°F temperature rise (gallons per minute) for model MGWH150IXPN from 4 to 4.4 in the ENERGY STAR list between February 2026 and August 2026.
Midea MGWH150IXNN changed its certified flow at a 67°F temperature rise (gallons per minute) for model MGWH150IXNP from 4 to 4.4 in the ENERGY STAR list between February 2026 and August 2026.
Midea MGWH150IXNN changed its certified flow at a 67°F temperature rise (gallons per minute) for model MGWH150IXNN from 4 to 4.4 in the ENERGY STAR list between February 2026 and August 2026.
Midea MGWH150IXNN has a recorded ENERGY STAR market-availability date of Sep 10, 2025. It first appeared in the ENERGY STAR list between October 2025 and February 2026.
Certified figures by listed model
| Model number | UEF | Flow at a 67°F rise (gal/min) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|
| MGWH150IXNN | 0.95 | 4.2 | 96% | High |
| MGWH150IXNP | 0.95 | 4.2 | 96% | High |
| MGWH150IXPN | 0.95 | 4.1 | 97% | High |
| MGWH150IXPP | 0.95 | 4.1 | 97% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
ENERGY STAR certified models
| Model number | UEF | Flow at a 67°F rise (gal/min) |
|---|---|---|
| MGWH150IXNN | 0.95 | 4.4 |
| MGWH150IXNP | 0.95 | 4.4 |
| MGWH150IXPN | 0.95 | 4.4 |
| MGWH150IXPP | 0.95 | 4.4 |
Its flow at a 67°F rise is 4.1 to 4.2 gallons per minute, by model number. The gas tankless type has a median flow of 4.8 gallons per minute. Its flow at a 67°F rise trails 360 of the 487 gas tankless models.
All 4 of its model numbers are ENERGY STAR certified. In the test, 5% of its energy does not reach the hot water (UEF 0.95). Its test simulated a day of high hot water use (its draw pattern). Of 399 gas tankless models with the same draw pattern, 49 have a higher UEF and 217 a lower one. For its type and draw pattern, the median UEF is 0.93.
It is sold under 4 model numbers in all.
It may qualify for 6 rebate programs in 7 states. Another 2 rebate programs may accept it if it meets their other terms.
Rebates
| Program | State | Status | Program page |
|---|---|---|---|
| SoCalGas High-Efficiency or ENERGY STAR Certified Natural Gas Tankless Water Heaters rebate | CA | May qualify | Its own page |
| Colorado Springs Utilities Water heater rebate (gas storage, gas tankless) | CO | May qualify | Its own page |
| Nicor Gas Energy Efficiency Rebates for Your Home (gas tankless) | IL | May qualify if it meets the other terms | Its own page |
| DTE Energy Water Heaters (gas storage, gas tankless) | MI | May qualify | Its own page |
| Xcel Energy MINNESOTA RESIDENTIAL ENERGY EFFICIENCY PROGRAMS (gas storage, gas tankless) | MN | May qualify | Its own page |
| PSE&G Tankless Water Heaters | NJ | May qualify | Its own page |
| Energy Trust of Oregon Residential Incentives | OR, WA | May qualify | Its own page |
| Focus on Energy (gas tankless) | WI | May qualify if it meets the other terms | Its own page |
Programs change their terms. Check the program's own page before you buy.
- Every Midea basic model
- Every gas tankless water heater certified at 4.0 to 4.9 gallons per minute
- Every gas tankless water heater
- The most-searched gas tankless models side by side
Not covered
- Advertised figures. We have none on file for this model.