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Title: Long-Term Monitoring of Mini-Split Ductless Heat Pumps in the Northeast

Technical Report ·
DOI:https://doi.org/10.2172/1220481· OSTI ID:1220481

Transformations, Inc. has extensive experience building their high performance housing at a variety of Massachusetts locations, in both a production and custom home setting. The majority of their construction uses mini-split heat pumps (MSHPs) for space conditioning. This research covered the long-term performance of MSHPs in Zone 5A; it is the culmination of up to 3 years' worth of monitoring in a set of eight houses. This research examined electricity use of MSHPs, distributions of interior temperatures and humidity when using simplified (two-point) heating systems in high-performance housing, and the impact of open-door/closed-door status on temperature distributions. The use of simplified space conditioning distribution (through use of MSHPs) provides significant first cost savings, which are used to offset the increased investment in the building enclosure.

Research Organization:
Building Science Corporation, Westford, MA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1220481
Report Number(s):
DOE/GO-102015-4529; 7095
Country of Publication:
United States
Language:
English