GENERAL AIRSTAGE INFINITE COMFORT 30LUAH1M 2.5 Ton Central Heat Pump in Montreal, Laval, Longueuil, South Shore and North Shore

GENERAL AIRSTAGE INFINITE COMFORT 30LUAH1M Central Heat Pump, 30,000 BTU: winter on the heat pump, backup heat in reserve

With the 30LUAH1M system, GENERAL AIRSTAGE pairs the AMUG30LMAS air handler with the AOUH30LUAH1 outdoor unit. Look up the same combination under Fujitsu AIRSTAGE and you will find the same two model numbers, the same manufacturer’s spec sheet and the same warranty coverage. The manufacturer only changed its name; since January 1, 2026, Fujitsu General Limited has gone by GENERAL Inc.

This system is aimed at a very specific house: ductwork already in place, an electric furnace or an old forced-air system in the basement, and owners who no longer want the heating elements doing most of the work from December to March. They want the heat pump to really heat, even when winter gets serious.

The AOUH30LUAH1 outdoor unit is one of the models the manufacturer designs for extra-low-temperature heating. The system is ENERGY STAR certified, recognized as cold climate by ENERGY STAR and listed for LogisVert at $2,592, according to the Hydro-Québec list as of October 27, 2026.

GENERAL or Fujitsu AIRSTAGE: the same machine

The GENERAL name is nothing new for this Japanese manufacturer: it has used it as a brand since 1946, and the company itself, born in 1936, is celebrating the 90th anniversary of its founding this year. What is new is that the name now designates the company. In August 2025, the Paloma Rheem Holdings group, which Rheem has belonged to since 1988, bought Fujitsu General Limited, renamed GENERAL Inc. on January 1, 2026. Kawasaki remains the address of both the head office and the R&D centre; factories, AIRSTAGE models and numbers do not change.

The warranty program carries over unchanged. As the Fujitsu brand is phased out gradually, you will still see both names for a while on quotes for an identical unit, and our two pages exist so the comparison is made on the numbers rather than the label. Rheem Canada has looked after sales in Canada since February 2026, we still buy from Groupe Master, and we are an AIRSTAGE Elite Plus installer.

To confirm that everything matches, open the Fujitsu AIRSTAGE version of the 30LUAH1M: same values, different name.

Heating without depending on backup heat does not mean heating without backup heat. The colder it gets outside, the more heat the house calls for and the harder a central heat pump has to work to pull it from the outdoor air. The point of an extra-low-temperature model is to push back as far as possible the moment when electric backup has to step in, meaning the electric backup heat kit that the manufacturer supplies and that we install on site in the air handler. According to the manufacturer, the system heats down to −26 °C.

The values published under AHRI certificate 207657376 give a good picture of how the system behaves:

• at −8 °C, a heating capacity of 21,600 BTU with a COP of 3.03;
• at −15 °C, a capacity of 33,000 BTU with a COP of 1.76;
• an HSPF2 of 9.7 for the heating season, and a SEER2 of 18.8 and an EER2 of 11.7 for cooling.

An honest clarification: these two capacities come from different test points, and we publish them as they stand, without pitting one against the other. The COP, on the other hand, is easy to read. At 3.03, the system delivers roughly three times as much heat as the electricity it uses at that test point, whereas an electric element gives back as heat what it consumes, and nothing more.

Sizing matters as much as technology. The manufacturer rates this 2.5-ton system at 32,000 BTU/h in heating and 28,600 BTU/h in cooling at nominal conditions. We do a load calculation at the visit, because an oversized unit costs more without heating better, and an undersized one makes backup heat unavoidable from the first real cold snap.

In the basement, the AMUG30LMAS fits in a cabinet 42.5 in. tall and 21 in. wide, which often takes over the spot of the old furnace. The unit is truly multi-position (upflow, downflow or horizontal), and the manufacturer puts the kits needed for downflow and horizontal-right in the box at no cost. Its coil is all aluminum. For service, the manufacturer wants free space on at least three sides and 21 in. in front of the cabinet; we plan for it from the survey onward.

Maximum airflow is 870 CFM. On the ductwork side, the unit tolerates up to 1.0 in. WC of static pressure, a high value, with an adaptive-control fan motor. For existing ducts, that is a reassuring margin, provided the return air keeps up; we check it grille by grille. As for sound, count on 25 dB(A) at the indoor unit’s quietest setting and 39 dB(A) at full speed; the outdoor unit is rated at 53 dB(A).

On an open lot, the outdoor unit takes the wind and blowing snow head-on. We install it on a base or bracket high enough to clear the drifts, away from water falling off the roof, with enough space around it for the air to move freely. For a unit expected to heat in deep cold, that detail carries a lot of weight.

Moving from a furnace to this central heat pump follows a few steps that we coordinate from start to finish:

• survey of the ductwork, the plenum and the return air, then a load calculation;
• removal of the old unit and installation of the AMUG30LMAS, connected to the existing plenum or a new one;
• refrigerant line (3/8 in. and 5/8 in.), cable and drain running to the outdoor unit, plus the 208/230 V power supply;
• a refrigeration technician commissions the system, sets up the backup heat and walks you through the controls.

Wi-Fi control is available as an option. The system is fully communicating between the outdoor unit and the air handler. An external input/output interface, sold as an option, lets you interlock it with a third-party system.

On the budget side, the LogisVert grant listed for this system is $2,592. The amount and eligibility are confirmed with Hydro-Québec when you apply; keep the AHRI number and the ENERGY STAR ID 2409932, both in the table, for your file.

Maintenance usually comes down to three habits: replacing or cleaning the filter, keeping the condensate drain clear, clearing the outdoor unit after a storm. A well-placed access hatch makes the first one easy. Warranty: 12 years for the compressor and parts, 6 years for labour.

Who the 30LUAH1M is for:

• houses that already have ducts and want the heat pump to become their real main heating system;
• owners who want an ENERGY STAR system recognized as cold climate and listed for LogisVert;
• less so large houses whose ductwork needs more air than the unit’s 870 CFM.

Mercier and the South Shore: have your house assessed for the 30LUAH1M

In Mercier, we start by heading down to the basement: condition of the current unit, plenum dimensions, return air, possible route to the yard. You then get a free quote spelling out the recommended size and the real role of backup heat in your winter.

To request it, call 514 316-2973. AirGreen, an HVAC contractor, serves Montreal, Laval, Longueuil, the North Shore and the South Shore.