Meet the Thermolux Ameristar multi-zone series — robust, inverter-driven ductless heat pumps purpose-built for flexible comfort across Greater Montreal, Laval, Longueuil, the South Shore and the North Shore. Spanning 18 000 to 42 000 BTU, a single outdoor unit can serve from two up to five zones (model-dependent), so you can tailor heating and cooling room by room while optimizing energy use.
Designed for our Quebec climate, these compact split systems provide reliable cooling and dependable low-ambient heating down to −30 °C. Pair them with a variety of indoor heads to fine-tune capacity, acoustics and aesthetics for each space.
10-Year Warranty: Enjoy a decade of coverage on compressor and parts with Thermolux for lasting peace of mind.
Combinations:
M4THM1918A12N: 9+9; 9+12; 12+12
M4THM1924A13N: 9+9; 9+12; 9+18; 12+12; 12+18; 18+18; 9+9+9; 9+9+12; 9+9+18; 9+12+12; 12+12+12
M4THM1930A14N: 9+9; 9+12; 9+18; 9+24; 12+12; 12+18; 12+24; 18+18; 18+24; 9+9+9; 9+9+12; 9+9+18; 9+9+24; 9+12+12; 9+12+18; 12+12+12; 12+12+18; 9+9+9+9; 9+9+9+12; 9+9+9+18; 9+9+12+12
M4THM1936A14N: 9+9; 9+12; 9+18; 9+24; 12+12; 12+18; 12+24; 18+18; 18+24; 24+24; 9+9+9; 9+9+12; 9+9+18; 9+9+24; 9+12+12; 9+12+18; 9+12+24; 9+18+18; 12+12+12; 12+12+18; 12+12+24; 12+18+18; 9+9+9+9; 9+9+9+12; 9+9+9+18; 9+9+12+12; 9+9+12+18; 9+12+12+12; 12+12+12+12
M4THM1942A15N: 9+9; 9+12; 9+18; 9+24; 12+12; 12+18; 12+24; 18+18; 18+24; 24+24; 9+9+9; 9+9+12; 9+9+18; 9+9+24; 9+12+12; 9+12+18; 9+12+24; 9+18+18; 12+12+12; 12+12+18; 12+12+24; 12+18+18; 9+9+9+9; 9+9+9+12; 9+9+9+18; 9+9+12+12; 9+9+12+18; 9+12+12+12; 9+12+12+18; 12+12+12+12; 9+9+9+9+9; 9+9+9+9+12; 9+9+9+9+18; 9+9+9+9+24; 9+9+9+12+12; 9+9+9+12+18; 9+9+9+18+18; 9+9+12+12+12; 9+9+12+12+18; 9+12+12+12+12; 9+12+12+12+18; 12+12+12+12+12