Case Studies

Case study describing an alternative ground source heat pump (GSHP) cold-climate application in an attempt to reduce the installation cost of the ground loop portion by containing the entire loop beneath the basement slab.

Case study describing a 2013 DOE Building America Top Innovation about best practices for high-efficiency window air conditioning units.

Case study describing a DOE Building America Top Innovation about the use of high-performance furnace blowers for heating and cooling.

Case study describing a DOE Zero Energy Ready Home 2014 Housing Innovation Award winner that scored HERS 45 without PV and 32 with PV and is the first home in the world to use a tri-generation system to supply electricity, heating, and cooling on site.

Case study describing a deep energy renovation of a home in Florida.

Case study describing a building project in the hot-humid climate zone.

Case study describing the New American Home project.

Case study describing homes that have a single heating plant that provides space and water heating.

Case study describing the performance of air-to-water heat pump systems in dry climates.

Case study describing a method for evaluating safe installation and operation of combustion appliances in homes undergoing energy efficiency upgrades where indoor air is used for combustion and venting.

Case study describing how researchers monitored heat output and electricity consumption of air-source heat pumps

Case study describing the performance of high-performance ducts in hot-dry and mixed-dry climates.

Case study describing field study of gas furnaces, and recommendations for installation.

Case study describing the long-term monitoring of mini-split ductless heat pumps.

Case study describing low-load options in heating, ventilation, and air conditioning equipment used in multifamily homes.

Case study describing the maximization of hydronic system efficiency in single and multifamily buildings.

Case study describing a six month study that monitored performance of a heat pump water heater.

Case study describing how to replace variable speed furnace motors.

Case study describing the benefits of replacing resistance heating systems with mini-split heat pumps in cold and mixed-humid climates.

Case study describing a Habitat for Humanity zero net energy home in Denver.

Case study describing innovative technologies, construction techniques, products, and design trends in new home construction.

Case study describing a retrofit project in the cold and very-cold climate zones.