Each home had a unique combination of
wall assembly, foundation, and heating
system. We monitored the energy usage,
indoor air quality, and ground
temperature of the four homes to
compare the performance of different
building and mechanical systems.
NW HOUSE
RAFT FOUNDATION
BRHEATHE SYSTEM
REMOTE WALL
NE HOUSE
PILE FOUNDATION
SOLAR HOT WATER
+ OIL BOILER
REMOTE WALL
SE HOUSE
PILE FOUNDATION
SOLAR HOT WATER
+ PROPANE BOILER
REMOTE WALL
SW HOUSE
RAFT FOUNDATION
BRHEATHE SYSTEM
ARCTIC WALL
Annual Usage
ENERGY*
ELECTRICITY
WATER
GROUND TEMP
SOLAR OUTPUT
*displayed in fuel oil equiv. for comparison between homes
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