Field Performance of Inverter-Driven Heat Pumps in Cold Climates
CARB observed a wide range of operating efficiencies and outputs from site to site. Maximum capacities were found to be generally in line with manufacturer's claims as outdoor temperatures fell to -10°F. The reasons for the wide range in heating performance likely include: low indoor air flow rates, poor placement of outdoor units, relatively high return air temperatures, thermostat set back, integration with existing heating systems, and occupants limiting indoor fan speed. Even with lower efficiencies than published in other studies, most of the heat pumps here still provide heat at lower cost than oil, propane, or certainly electric resistance systems.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- Resource Type:
- Technical Report
- Research Org:
- Consortium for Advanced Residential Buildings, Norwalk, CT (United States)
- Sponsoring Org:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
- Country of Publication:
- United States
- Residential; Residential Buildings; CARB; Building America; inverter-driven; air-source heat pumps; Steven Winter Associates, Inc.; Consortium for Advanced Residential Buildings; SWA; COPs; cold climate; Northeast; performance; heating; air flow measurement; heat pump; ASHP
Enter terms in the toolbar above to search the full text of this document for pages containing specific keywords.