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Case Study:

Technology Solutions Case Study: Low-Load Space-Conditioning Needs Assessment

Case Study:

Technology Solutions Case Study: Optimizing Hydronic System Performance in Residential Applications, Ithaca, New York

Case Study:

Technology Solutions Case Study: Performance of a Heat Pump Water Heater in the Hot-Humid Climate, Windermere, Florida

Case Study:

Technology Solutions Case Study: Replacement of Variable-Speed Motors for Furnaces

Case Study:

Technology Solutions Case Study: Replacing Resistance Heating with Mini-Split Heat Pumps

Case Study:

Technology Solutions Case Study: Retrofit Integrated Space and Water Heating - Field Assessment

Case Study:

Technology Solutions Case Study: Sealed Air-Return Plenum Retrofit

Case Study:

Technology Solutions Case Study: Selecting Ventilation Systems for Existing Homes

Case Study:

Technology Solutions Case Study: Steam System Balancing and Tuning for Multifamily Residential Buildings, Chicago, Illinois

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The AC unit has a drip pan and automatic shutoff in case the condensate drain gets clogged.

The AC unit has a drip pan and automatic shutoff in case the condensate drain gets clogged.
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The air handler of the air-to-water heat pump is equipped with a very high efficiency air filter and a damper-controlled fresh air intake.

The air handler of the air-to-water heat pump is equipped with a very high efficiency air filter and a damper-controlled fresh air intake.
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The basement is half in and half out of the ground with only 4 feet below grade, which allows for full 36-inch-tall windows that are completely above grade.

The basement is half in and half out of the ground with only 4 feet below grade, which allows for full 36-inch-tall windows that are completely above grade.
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The blower wheel (fan) on this ductless wall-mounted indoor unit has accumulated dust and mold - a common issue for this design.

The blower wheel (fan) on this ductless wall-mounted indoor unit has accumulated dust and mold - a common issue for this design.
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The condensate line (amber-colored plastic tube) from the high-efficiency furnace drains into the sewer via the same drain pipe as the clothes washer

The condensate line (amber-colored plastic tube) from the high-efficiency furnace drains into the sewer via the same drain pipe as the clothes washer
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The dark streaks seen in this infrared camera image of a return vent in a ceiling indicate cooler air is leaking in around the vent.

The dark streaks seen in this infrared camera image of a return vent in a ceiling indicate cooler air is leaking in around the vent.
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The door sweep should be installed level to the door, positioned such that the bottom edge touches the door threshold.

The door sweep should be installed level to the door, positioned such that the bottom edge touches the door threshold.
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The drain pans sit below the cooling coil to catch condensate and direct it to a drain line

The drain pans sit below the cooling coil to catch condensate and direct it to a drain line
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The drain pipe should include a trap and a clean-out with a removable cap

The drain pipe should include a trap and a clean-out with a removable cap
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The duct tester and blower door are set up to measure leakage to the outdoors

The duct tester and blower door are set up to measure leakage to the outdoors
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The ductless air handler of a ductless heat pump can be mounted above the ceiling so that only the register is visible

The ductless air handler of a ductless heat pump can be mounted above the ceiling so that only the register is visible
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The filter access panel on this vertical upflow air handler is located between the return ductwork below and the coils above.

The filter access panel on this vertical upflow air handler is located between the return ductwork below and the coils above.
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The gap between the duct boot and the drywall is air sealed by covering the seam with fiberglass mesh tape and mastic.

The gap between the duct boot and the drywall is air sealed by covering the seam with fiberglass mesh tape and mastic.
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The gaps around this duct boot are sealed with canned spray foam.

The gaps around this duct boot are sealed with canned spray foam.
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The gaps between the sheet metal of the duct boot and the drywall are clearly visible in this image.

The gaps between the sheet metal of the duct boot and the drywall are clearly visible in this image.