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MIDEA28 and MIDEA35: their other names, value by value
Four 12,000 BTU certificates carry exactly the MIDEA28’s values: BOSCH MAX PERFORMANCE R-454B, SENVILLE AURA R454B and DIRECT AIR HEAT XTREME PRO R-454B. A fifth, SENVILLE ELITE, carries the MIDEA35’s. And the DURASTAR Sirius Heat resembles the MIDEA28 without being identical. Here are the two families, and what sets them apart.
Two families, six twin names, one close relative.AHRI values published by NEEP for seven R-454B certificates, verified November 9, 2026.
MIDEA28
Outdoor unit
MO1HS-H12B-2A
Climate 5000 MAX PERFORMANCE R-454B
Outdoor unit
BMS500-AAS012-1CSXHD
AURA R454B
Outdoor unit
SENA-12HF-OG
HEAT XTREME PRO R-454B
DIRM4-12HP-WM
DIRM4-12HXPRO28-1Z
MIDEA35
MSESU-H12B-2A
MO1SS-H12B-2A
ELITE
Outdoor unit
SENE-12EL-OH
Sirius Heat R454B
DRAW12F2A
DRA1H12S2A
Two families of values, seven stars
Each star is a 12,000 BTU AHRI certificate. A solid line joins two certificates whose seventeen NEEP values are identical; a dotted line, two certificates that share some of them. Tap a star to see its certificate and what it shares with the others.
AHRI values published by NEEP, verified November 9, 2026. Seventeen values compared per certificate: SEER2, EER2, HSPF2 IV and V, capacities and COP at 8.3, −8.3, −15 and −30 °C.
At −15 and −30 °C, the two families do not say the same thing
Each family carries its own certified points. The MIDEA35 family is certified higher at both temperatures; the MIDEA28 family keeps a higher minimum at −8.3 and −15 °C. Each figure sits at its own temperature, with its source.
The two families, in dollars, winter and summer
AirGreen estimate for the same 12,000 BTU/h zone in Montréal, at Hydro-Québec Rate D, taxes included. Here, the two families do not have the same certificate: HSPF2 Region V of 8.0 and SEER2 of 25.4 for the MIDEA28 family, 9.5 and 29.4 for the MIDEA35 family. Each amount applies to every name in its family. Electric baseboards serve as the reference point.
How this amount is calculated
- Heat to supply over the winter. A zone whose heat loss reaches 12,000 BTU/h ( kW) at −23.1 °C, Montréal’s design temperature: kW × 24 h × 4,167 degree-days ÷ (18 − (−23.1)) = kWh of heat for round-the-clock heating, all winter. Heating degree-days (18 °C base) and design temperature: Natural Resources Canada, HOT2000 climate data, Montréal Intl station. With fewer hours a day (“Heating” slider), the heat is reduced in the same proportion, for the heat pump and the baseboards alike: a simplification that ignores the recovery after a temperature setback.
- Electricity for heating. Heat pump: heat × 3.412 ÷ HSPF2 Region V, the AHRI certificate value published by NEEP. Region V is the coldest in the standard, and its calculation includes the electric backup expected when the heat pump is no longer enough. Electric baseboards: 1 kWh of electricity for 1 kWh of heat.
- Electricity for cooling. 12,000 BTU/h ÷ SEER2 × hours per day × 60 days ÷ 1,000: the method of Hydro-Québec’s air-conditioning calculator, with the SEER2 seasonal efficiency from the AHRI certificate. The number of hours is a scenario, adjustable above from 1 to 24 h. At 24 h, the calculation assumes rated capacity all day: that is a ceiling, since a variable-speed unit slows down once the room is at the right temperature.
- Price. Hydro-Québec Rate D in effect April 1, 2026: 7.065¢ per kWh up to 40 kWh a day, 11.142¢ beyond; the average price, 9.104¢, is the one Hydro-Québec’s calculators use. GST and QST included. Grid access charges, the same with or without a heat pump, are not counted.
AirGreen method v1.1, November 9, 2026. An estimate is for comparing units under the same conditions. The actual bill depends on the house, insulation, settings and use; this amount is not a promise.
What the certificates and documents really say
Identical values do not mean identical documents. Here are six points to know before reading a specification sheet for these names.
Four certificates, identical values
MIDEA28 (215471381), BOSCH MAX PERFORMANCE R-454B (215223282), SENVILLE AURA R454B (215735296) and DIRECT AIR HEAT XTREME PRO R-454B (216571373) carry the same 17 NEEP values. The NEEP series names and the outdoor units, however, differ.
MIDEA35 and SENVILLE ELITE: the same, in pairs
The MIDEA35 (215471387) and the SENVILLE ELITE (217607368) have identical NEEP values. The MIDEA brochure prints certificate 215471386 for the MIDEA35; NEEP and AirGreen’s product page give 215471387.
DURASTAR Sirius Heat: a close relative
Same maximum capacities at every temperature and same HSPF2 as the MIDEA28, but a SEER2 of 24.0 instead of 25.4, an EER2 of 13.2 instead of 13.4, and several different minimums and COPs. It is not a twin, and this page does not present it as one.
Two families, two cold-weather profiles
At −15 °C, the MIDEA35 family is certified at 13,500 BTU/h (COP 2.00), the MIDEA28 family at 11,500 (COP 1.80). At −30 °C: 7,500 and 5,900 BTU/h maximum. At −8.3 °C, however, the MIDEA28’s certified minimum (5,300 BTU/h) is higher than the MIDEA35’s (1,600).
Manufacturer figures sometimes stray from the certificate
The MIDEA brochure gives the MIDEA35 an HSPF2 of 14.5 / 10.0 and a COP of 3.60 at −15 °C; the certificate says 12.7 / 9.5 and 2.00. The SENVILLE ELITE page also prints an HSPF2 of 14.5. This page follows the certificate.
Not all product pages on the site are the right generation
AirGreen’s site shows the SENVILLE AURA and the DIRECT AIR HEAT XTREME PRO in R-410A versions, which have other certificates. The values on this page cover the certified R-454B versions above.
What people ask about MIDEA28, MIDEA35 and their other names
MIDEA28, BOSCH MAX PERFORMANCE R-454B, SENVILLE AURA R454B and DIRECT AIR HEAT XTREME PRO R-454B: what is the difference?
Their 12,000 BTU AHRI certificates carry the same 17 values published by NEEP. The name, the indoor unit, the remote, the documents and the warranty may vary from one brand to another.
Are the MIDEA35 and the SENVILLE ELITE certified the same?
Yes: their certificates (215471387 and 217607368) have the same NEEP values, including a SEER2 of 29.4 and an HSPF2 of 12.7 / 9.5.
Is the DURASTAR Sirius Heat a MIDEA28?
No, not in terms of the certificates. It shares the MIDEA28’s maximum capacities and HSPF2, but its SEER2 (24.0), its EER2 (13.2) and several COPs and minimums differ.
Which family heats more at −30 °C?
According to NEEP, 7,500 BTU/h maximum (COP 1.29) for the MIDEA35 family and 5,900 BTU/h (COP 1.25) for the MIDEA28 family, at −30 °C.
Does the operating cost differ between the two families?
Yes, in our method: it depends on HSPF2 Region V (8.0 versus 9.5) and SEER2 (25.4 versus 29.4). The simulator above gives the difference in dollars for your hours of use; within the same family, the amount is the same.
Why does the MIDEA35 brochure give a higher HSPF2?
The brochure prints 14.5 / 10.0; AHRI certificate 215471387, published by NEEP, gives 12.7 / 9.5. When sources disagree, this page follows the certificate.
Are they eligible for rebates?
Eligibility depends on the official list in effect on the date of purchase. This page promises no amount; the current list is checked at the time of the quote.
The three certified profiles, row by row
One column per profile: the MIDEA28 family (four identical certificates), the DURASTAR close relative, and the MIDEA35 family (two identical certificates).
| Certified value | MIDEA28 familyMIDEA28, BOSCH MAX PERFORMANCE R-454B, SENVILLE AURA R454B, DIRECT AIR HEAT XTREME PRO R-454B | DURASTAR Sirius Heat R454Bclose relative | MIDEA35 familyMIDEA35, SENVILLE ELITE |
|---|---|---|---|
| Cooling and seasonal | |||
| Rated capacity at 35 °C | 12,000 BTU/h | 12,000 BTU/h | 12,000 BTU/h |
| SEER2 · EER2 | 25.4 · 13.4 | 24.0 · 13.2 | 29.4 · 14.2 |
| HSPF2 Region IV / V | 10.5 / 8.0 | 10.5 / 8.0 | 12.7 / 9.5 |
| Heating | |||
| 8.3 °C: min. / rated / max.BTU/h | 3,800 / 12,000 / 16,000 | 3,800 / 12,000 / 16,000 | 4,000 / 12,000 / 17,200 |
| 8.3 °C: COP min. / rated / max. | 4.84 / 3.74 / 3.35 | 4.84 / 3.63 / 3.35 | 5.86 / 3.59 / 3.17 |
| −8.3 °C: min. / rated / max.BTU/h | 5,300 / 12,000 / 12,800 | 5,200 / 12,000 / 12,800 | 1,600 / 11,000 / 14,600 |
| −8.3 °C: COP min. / rated / max. | 2.22 / 2.51 / 1.75 | 2.34 / 2.44 / 1.75 | 1.88 / 2.41 / 2.26 |
| −15 °C: min. / rated / max.BTU/h | 4,100 / 11,500 / 11,500 | 4,000 / 11,500 / 11,500 | 900 / 13,500 / 13,500 |
| −15 °C: COP min. / rated / max. | 1.72 / 1.80 / 1.80 | 1.80 / 1.80 / 1.80 | 1.15 / 2.00 / 2.00 |
| −30 °C: min. / max.BTU/h, coldest point | 2,000 / 5,900 | 2,000 / 5,900 | 4,100 / 7,500 |
| −30 °C: COP min. / max. | 1.17 / 1.25 | 1.07 / 1.25 | 1.14 / 1.29 |
| ENERGY STAR · cold climate (NEEP fields) | Yes · yes | Yes · yes | Yes · yes |
| Identification | |||
| AHRI certificate · NEEP record | 215471381 · 387358 (MIDEA28); 215223282 · 392021 (BOSCH); 215735296 · 385685 (SENVILLE AURA); 216571373 · 382480 (DIRECT AIR) | 215359252 · 389518 | 215471387 · 387352 (MIDEA35); 217607368 · 371579 (SENVILLE ELITE) |
| Outdoor unit | MO1HS-H12B-2A; BMS500-AAS012-1CSXHD; SENA-12HF-OG; DIRM4-12HXPRO28-1Z | DRA1H12S2A | MO1SS-H12B-2A; SENE-12EL-OH |
| RefrigerantGWP per IPCC (AR4); ASHRAE 34 class | R-454B · GWP 466 · A2L | R-454B · GWP 466 · A2L | R-454B · GWP 466 · A2L |
AHRI values published by NEEP (ashp.neep.org), verified November 9, 2026. A yellow cell marks a value that is not the same in every column; it is not a recommendation.
MIDEA28 and MIDEA35 are on AirGreen’s site.
To choose for your room, talk it over with our team: bring the room dimensions, the planned outdoor location and your current heating.
Where each figure comes from
Data verified November 9, 2026. Performance: AHRI certificates and the NEEP database; listing: ENERGY STAR directory where cited. Dimensions, sound, piping and features: per the manufacturer. When a source contradicts the AHRI certificate, the certificate prevails.
Trademarks. MIDEA, BOSCH, SENVILLE, AURA, ELITE, DIRECT AIR, HEAT XTREME PRO, DURASTAR and Sirius Heat are trademarks of their respective owners. Logos are used only to identify the products compared. AirGreen is a retailer of these brands; this page is not produced, sponsored or endorsed by the manufacturers.
Photos: AirGreen product images, for identification. Promotional badges and panels on the images are masked.
Does a figure look wrong? Write to us: every reported value is checked again.