Bosch Home Comfort White Papers

Enabling Technologies for Cold Climate Heat Pumps

Thanks to new technologies, cold climate heat pumps can withstand even the harshest winter days.

Topics covered in this white paper:

• Inverters & variable-speed compressors
• Problems in cold environments
• Hot gas bypass
• Flash Tank Vapor Injection (FTI)
• ASHP Coil Freezing and Defrost
• Enhanced Vapor Injection (EVI)

Inverter Technology and Bosch Air Source Heat Pumps (ASHP)

The Case for Microchannel Technology in Air Source Hybrid Electric Water Heaters (HEWH)

Condensing Boiler Heat Exchanger Technology

Which Blower is Best for Commercial Water-to-Air Water Source Heat Pumps?