Midea M Thermal Arctic air-to-water: heat through water, down to -25 °C.
For homes heated with water: radiant floor, radiators or fan coils. One outdoor unit and one hydronic module that also heat domestic water and cool in summer. Water up to 65 °C, R-32 refrigerant, according to Midea.
M Thermal Arctic · R-32The system at a glance
One outdoor unit and one indoor hydronic module, 16 kW according to Midea.
Heating, cooling and hot water in one system, according to Midea: radiant floor, radiators, fan coils and hot water tank.
The air outside heats the water. The water heats the house.
Tap a step to follow the heat, from the outside air to the floor, or switch to cooling.
AirGreen principle diagram. Water temperatures and ranges: our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
Three uses, three temperature ranges.
Pick a use: the outdoor air range the M Thermal Arctic works in, and the water range it makes, on one scale.
- 1-15 °C outside: 33,780 BTU/h with 43 °C water, COP 2.06.
- 27 °C outside: 54,589 BTU/h (16 kW) with 35 °C water, COP 4.5.
- 335 °C water, radiant floor benchmark: COP 4.5 at 7 °C outside.
- 445 °C water, fan coil benchmark: COP 3.6 at 7 °C outside.
- 555 °C water, radiator benchmark: COP 2.9 at 7 °C outside.
Same published heat at 7 °C outside, 54,589 BTU/h, with 35, 45 or 55 °C water: the COP is what changes. Cooler water uses less electricity for the same heat.
- 135 °C outside: the temperature of both published cooling tests.
- 27 °C water, fan coils: 47,765 BTU/h, EER 8.37. It dehumidifies.
- 318 °C water, cooling floor: 48,448 BTU/h, EER 12.33. It does not dehumidify.
At 35 °C outside, 18 °C water costs far less to make than 7 °C water: each emitter has its role.
- 171 °C water at most: the disinfection cycle heats the tank to 60–71 °C, against legionella.
With a tank, the same heat pump makes hot water, from -25 °C to 43 °C outside, and gives it priority when needed, according to Midea.
Ranges and published points: our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026); the -15 °C point is also on the NYS Clean Heat list (May 26, 2026). Floor, fan coils and radiators are benchmarks: the right water temperature depends on your emitters, and we work it out with you.
The cooler the water, the more efficient the heat pump.
Heat and COP published by Midea by outdoor and water temperature. Pick your system’s water temperature: floor (35 °C), fan coils (45 °C) or radiators (55 °C).
Outside at 7 °C
water at 35 °COutside at 2 °C
water at 35 °COutside at -7 °C
water at 35 °COutside at 7 °C
water at 45 °COutside at 2 °C
water at 45 °COutside at -7 °C
water at 45 °COutside at 7 °C
water at 55 °COutside at 2 °C
water at 55 °COutside at -7 °C
water at 55 °C33,780 BTU/h with 43 °C water, COP 2.06: Midea’s figure, also on New York State’s NYS Clean Heat list (May 26, 2026).
Midea gives a heating range of -25 °C to 35 °C outside, and -25 °C to 43 °C for hot water.
48,448 BTU/h with 18 °C water, and 47,765 BTU/h with 7 °C water, at 35 °C outside, according to Midea.
Source: Midea “M thermal Arctic Split Series” brochure for North America (HA-SA20251215) and 16 kW submittal (January 2026), pair MHA-V16WD2MN8-B2 / HB-A160CMDM30GN8-B2; NYSERDA, NYS Clean Heat air-to-water qualified product list of May 26, 2026 (COP and heat at A5W110). Heat bars scaled to the highest value.
The air-to-water COP, by outdoor and water temperature.
Pick the water and outdoor temperatures: kWh of heat per kWh of electricity, and the cost of a kWh of heat at Rate D.
At 7 °C outside with 35 °C water: 54,589 BTU/h published by Midea.
COP and heat: our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026); at -15 °C with 43 °C water, figure also on the NYS Clean Heat list (May 26, 2026). Electric heat (baseboard or electric boiler): about 100% efficient (NRCan, “Heating with Electricity”). Hydro-Québec Rate D in force April 1, 2026: 7.065¢/kWh up to 40 kWh per day, 11.142¢/kWh beyond, plus the access charge. A published COP is not a bill.
What Midea built into the M Thermal Arctic.
The features Midea states for its air-to-water heat pump.
Midea publishes a maximum leaving water of 65 °C, hot enough for existing radiators.
8 heating curves, 8 cooling curves and a custom one: water temperature follows the outdoor temperature, according to Midea.
Quiet mode lowers compressor and fan speed; Midea states 45 dB(A) at minimum for the outdoor unit.
Eight maximum-current settings at the controller, to respect the electrical service capacity, according to Midea.
Built-in Wi-Fi module to follow zones and consumption in the app, and Modbus for a building system, according to Midea.
The disinfection cycle heats the tank to 60–71 °C against legionella; fast hot water takes priority when needed, according to Midea.
Source: Midea “M thermal Arctic Split Series” brochure for North America (HA-SA20251215) and 16 kW submittal (January 2026).
Eight things to know about the Midea air-to-water unit.
Tap a card to flip it: each number’s source is on the back.
- 01Cooling12.33EERCooling through the floor costs lessTap for the explanation01
At 35 °C outside, Midea publishes an EER of 12.33 with 18 °C water (cooling floor), versus 8.37 with 7 °C water (fan coils). 18 °C water costs far less to make, but it does not dehumidify: each option has its role.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
- 02Cooling-5to 43 °CThe summer rangeTap for the explanation02
Midea gives a cooling range of -5 °C to 43 °C outside.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
- 03Heating water25to 65 °CFrom warm to hot waterTap for the explanation03
In heating, leaving water adjusts from 25 °C to 65 °C, according to Midea: from radiant floors to existing radiators.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
- 04-15 °C62%What is left in deep coldTap for the explanation04
At -15 °C outside with 43 °C water, the published 33,780 BTU/h are 62% of the 54,589 BTU/h given at 7 °C with 35 °C water.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026); NYS Clean Heat list.
- 057 °C16kWSame output, different efficiencyTap for the explanation05
At 7 °C outside, published heat stays at 54,589 BTU/h (16 kW) with 35, 45 or 55 °C water: only the COP drops, from 4.5 to 3.6 then 2.9.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
- 06Curiosity2°CA dip at 2 °CTap for the explanation06
With 35 °C water, Midea publishes less heat at 2 °C outside (44,353 BTU/h) than at -7 °C (45,377 BTU/h). The brochure does not say why: we show you the number as is.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
- 07By conditions4.5 → 2.02COPThe gap between best and worst caseTap for the explanation07
The published COP ranges from 4.5 (7 °C outside, 35 °C water) to 2.02 (-7 °C outside, 55 °C water). Keeping the water warm, not hot, is the best savings setting.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
- 08Sound57 / 35dB(A)Outside and insideTap for the explanation08
The outdoor unit is 57 dB(A) and the indoor module 35 dB(A); quiet mode goes down to 45 dB(A) outside.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
Swipe to see the other cards, tap a card to flip it.
The M Thermal Arctic warranty, confirmed in writing with the quote.
The M Thermal Arctic comes from Midea Building Technologies. Its warranty is not in Midea Comfort’s residential limited warranty: we give it to you in writing before you sign.
Parts and compressor terms, conditions and exclusions, in black and white.
Installed by a licensed contractor: AirGreen, RBQ 5645-9605-01.
This system has no AHRI number in our product data: we check possible rebates with you at the quote.
AirGreen — MIDEA PRO dealer
MIDEA PRO dealer: recognized expertise across the whole residential and commercial range.
Warranty given in writing with the quote, before you sign.
Specialized MIDEA technical training completed: installation to the manufacturer’s standards, advanced diagnostics and certified service.
Full command of MIDEA systems, from selection to start-up, including preventive maintenance and specialized repairs.
Priority access to original parts for after-sales service, cutting response times.
Privileged access to PRO programs and new technology, in Montreal, Laval, Longueuil, the North Shore, the South Shore and Montérégie.
We look at your distribution (floor, radiators, fan coils), hot water, electrical service and the outdoor unit spot.
The system, the target water temperature, the tank if needed and what is included.
Refrigerant lines, water connections, loop purge, curve and zone setup, heating and hot water tests.
We show you the controller and the app, and give you the warranty papers.
Five questions about air-to-water.
Answer, then read why.
“An air-to-water unit can heat existing radiators.”
True. Depending on their sizing: Midea publishes leaving water up to 65 °C, and we check that your radiators deliver enough at the chosen temperature.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
“The hotter the water, the more efficient the heat pump.”
False. The opposite: at 7 °C outside, COP 4.5 with 35 °C water, 2.9 at 55 °C.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
“An air-to-water unit cannot cool.”
False. It sends 5 °C to 25 °C water to fan coils or a cooling floor, according to Midea.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
“According to Midea, the M Thermal Arctic heats down to -25 °C outside.”
True. Heating range of -25 °C to 35 °C outside.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
“At 7 °C outside, it gives less heat with 55 °C water than with 35 °C.”
False. Published heat is the same, 54,589 BTU/h; only the COP drops.
Our product data, from Midea’s “M thermal Arctic Split Series” brochure (HA-SA20251215) and 16 kW submittal (Jan. 2026).
What people ask us about the Midea air-to-water unit.
No question matches. Write to us or call 514 316-2973.
A heat pump that heats water instead of air. That water flows through a radiant floor, radiators or fan coils, and can heat a hot water tank.
Often, yes: Midea publishes water up to 65 °C. The hotter the water, the lower the COP: 2.9 at 55 °C versus 4.5 at 35 °C, at 7 °C outside. We check your radiators’ size at the visit.
Midea gives a heating range down to -25 °C outside. At -15 °C, with 43 °C water, the published heat is 33,780 BTU/h, COP 2.06.
Yes, with a tank: 20 °C to 60 °C, disinfection cycle and hot water priority, according to Midea. We choose the tank with you.
Yes, with fan coils or a floor designed for it: 5 °C to 25 °C water, according to Midea.
This system has no AHRI number in our product data, unlike our wall and central units. We check possible rebates with you at the quote.
Midea states a built-in Wi-Fi module, with zone and consumption tracking in the app. The quote says what is included.
Your Midea air-to-water system, designed with you and installed by AirGreen.
We come and see your distribution and hot water, pick the water temperature and tank with you, then you get a clear quote.
Hydro-Québec does not solicit anyone by phone or door to door for LogisVert. A call “from Hydro-Québec” selling a heat pump? Hang up.
Sources checked on October 8, 2026
- Midea “M thermal Arctic Split Series” brochure for North America (HA-SA20251215) and 16 kW submittal (January 2026), pair MHA-V16WD2MN8-B2 / HB-A160CMDM30GN8-B2.
- NYSERDA, NYS Clean Heat air-to-water qualified product list of May 26, 2026: MHA-V16WD2MN8-B2, COP 2.06 and 33.8 kBTU/h at A5W110.
- airgreen.ca product page, Oct. 8, 2026.
LogisVert amounts are indicative: Hydro-Québec confirms them when you apply. Prices on quote.
The M Thermal Arctic, right below.
Open the product page: the numbers, the dimensions and the brochure.
