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Split Heat Pump Water Heater Retrofit Survey

Introduction

Domestic water heating is a crucial component of residential electrification, especially with the growing suite of heat pump water heaters, which heat water more efficiently than standard water heaters. 

Unitary 240V heat pump water heaters are a good fit for many home types in Minnesota. However, in space- and electrically-constrained residences such as multifamily apartments and manufactured homes, there are hurdles to installing these water heaters. 

This study, conducted in partnership with Center for Energy and Environment and New Buildings Institute, will chart a practical path to electrifying domestic water heating in multifamily and manufactured homes by identifying the installation barriers, opportunities, and performance of heat pump water heaters designed for constrained conditions, such as split-system heat pump water heaters where the hot water tank is indoors but the compressor and fan are located outdoors.  

Our team plans to measure split-system heat pump water heater performance in six to eight multifamily units across at least two apartment buildings, plus two manufactured homes in Minnesota. The homes will receive free installation of a new split-system heat pump water heater. The results of this study will help determine if this type of water heating system is right for this type of home in Minnesota.

This research builds on a prior study on 120-volt HPWHs conducted by Slipstream and co-funded by Xcel Energy, Focus on Energy, ComEd, and Consumers Energy. 

This research was made possible by a grant from the Minnesota Department of Commerce, Division of Energy Resources through the Conservation Applied Research and Development (CARD) program, which is funded by Minnesota ratepayers.
 

Privacy Notice

Center for Energy and Environment (CEE) is collecting information to support recruitment for this research project. Information may also be summarized, analyzed, and reported in aggregate form, and made available to the Minnesota Department of Commerce, the public or others. By providing the information requested, you allow CEE to use it for the purposes described in this notice. This project is supported in part by a grant from the Minnesota Department of Commerce, Division of Energy Resources (DER), through the Conservation Applied Research and Development (CARD) program. CEE and DER must comply with the Minnesota Government Data Practices Act, Minn. Stat. Ch. 13, as it applies to all data. All data may be shared upon receipt of a public data request, court order or provided to the state or legislative auditor as required by law. Participation is voluntary, and you may refuse to provide the requested information at any time, with no penalty or loss of benefits other than your eligibility to participate in the research project.
 
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