Meet the Thermolux Goodman 21 SEER multi-zone series — inverter-driven ductless heat pumps engineered for flexible comfort across Greater Montreal, Laval, Longueuil, the South Shore and the North Shore. Covering 18 000 to 36 000 BTU capacities and supporting two to four zones (model-dependent), these compact outdoor units pair with a wide range of indoor heads to fine-tune temperature room by room while optimizing energy use.

Built for Quebec’s climate, Thermolux Goodman systems deliver efficient cooling and dependable low-ambient heating, with quiet operation, smart protections and straightforward installation for homes and light-commercial spaces.

• Variable-speed inverter for precise temperature control, faster pull-down/heat-up and lower power draw.
• High efficiency with up to 21 SEER performance to help trim utility bills.
• Cold-climate capability with reliable low-ambient heating for Quebec winters.
• Quiet, durable design featuring optimized airflow paths and corrosion-resistant coil protection.
• Smart reliability including intelligent defrost, auto-diagnostics, soft-start and optional Wi-Fi control.

10-Year Warranty: Enjoy a decade of coverage on compressor and parts for long-term peace of mind.

Combinations:

GMU(18)21S-O: 9+9; 9+12; 12+12

GMU(27)21S-O: 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

GMU(36)21S-O: 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+12+12+12; 12+12+12+12