Elios MGWH199IXNN
Elios MGWH199IXNN is in the DOE listing as of Oct 19, 2026. Elios MGWH199IXNN is in the ENERGY STAR list as of Oct 19, 2026.
- Gas tankless water heater
- 3 listed models
Its figures are also listed under Elios EROD199N0000.
Certified figures
- Flow at a 67°F rise
- 5.7gallons per minute
- UEF
- 0.95Uniform energy factor
Your fixtures at once
Change your hour and flowFlow where you live
A bigger rise from colder incoming water leaves the heater with 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 5.5 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
Elios MGWH199IXNN was in the DOE listing by Oct 1, 2026.
Elios MGWH199IXNN has a recorded ENERGY STAR market-availability date of Jan 28, 2026. 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 |
|---|---|---|---|---|
| EROD199N0100 | 0.95 | 5.7 | 99% | High |
| EROD199P0000 | 0.95 | 5.7 | 99% | High |
| EROD199P0100 | 0.95 | 5.7 | 99% | 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) |
|---|---|---|
| EROD199N0100 | 0.95 | 5.7 |
| EROD199P0000 | 0.95 | 5.7 |
| EROD199P0100 | 0.95 | 5.7 |
It warms 5.7 gallons per minute of water from 58°F to 125°F in the test. The median gas tankless model heats 4.8 gallons per minute by 67°F. Of 487 gas tankless models, 60 have a higher flow than this one.
Under this basic model, 3 model numbers are ENERGY STAR certified. In tests, 95% of the energy went to hot water, so its UEF is 0.95. In the test, daily hot water use was set to high (its draw pattern). Its UEF is lower than that of 49 of the 399 gas tankless models with its draw pattern. A UEF of 0.93 is the median for its type and draw pattern. When it runs, 99% of the energy it uses reaches the water (its recovery efficiency).
Its 3 model numbers are EROD199N0100, EROD199P0000, and EROD199P0100. All of its test figures are shared by 15 other basic models. Between them, those basic models carry 4 other brand names. For the full group, see the Elios EROD199N0000 page.
It may qualify for 6 rebate programs in 7 states. It may qualify for 2 more if it meets terms its figures do not show.
Also listed as
They carry every figure in the table above.
- Elios EROD199N0000
- Kepler JSG52-32PCH-NG
- Kepler JSG52-32PCH/199KNP
- Kepler MGWH199IXNN
- Kepler MGWH199IXNP
- Midea JSG52-32PCH-LP
- Midea JSG52-32PCH-NG
- Midea MGWH199IXNN
- Midea MGWH199IXNP
- Midea MGWH199IXPN
- Midea MGWH199IXPP
- MRCOOL MGWH199IXNN
3 more basic models carry these figures.
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 Elios basic model
- Every gas tankless water heater certified at 5.0 to 5.9 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.