Bosch Home Comfort’s IDS Ultra ColdClimate Heat Pump reportedly operates in climates reaching temperatures as low as -13°F, with 100% heating capacity down to 5°F. The unit’s Enhanced Vapor Injection (EVI) compressor borrows extra heat from the hot side of the refrigerant cycle, redirecting it to warm the home. Additionally, the pump features demand response capability, allowing utilities to manage electrical loads prior to peak usage time, and it complies with new low global warming potential A2L refrigerant requirements. bosch-homecomfort.us/ultra