Legacy™ Multi-speed Geothermal Heat Pump GB

The GB model is impressively efficient, even using a single-stage compressor and a multi-speed blower. So, it can help you cut costs today and for the long haul. And with built-in sound dampeners like full insulation and double-isolation compressor mounting, you’ll still enjoy quiet comfort.

Compressor Type: Single-Stage
Efficiency Range: 18.5 to 21.7 EER (closed loop); 21.4 to 28.1 EER (open loop) COP EFFICIENCY RANGE : 3.7 to 4.3 COP (closed loop); 4.3 to 5.2 COP (open loop)
  • Manage your utility costs with high-efficiency geothermal (efficiency is unit size dependent): Closed loop cooling EER - Up to 28.1; Closed loop heating COP - Up to 4.3
  • Multi-speed air delivery aides quiet performance
  • Single-stage compressor operation
  • Insulated cabinet for quiet operation
  • Wide operating temperature range with exceptional cold weather performance
  • Corrosion-resistant coil for durability
  • 2" MERV 8 filtration
  • 10-year parts and 5-year labor limited warranty1
  • Supplemental
  • domestic hot water generation
  • Internally-mounted auxiliary heat
  • Smart startup add-on for smoother operation