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A ground-source heat pump used a fluid flowing through pipe loops to draw heat from or discharge heat the ground to heat or cool the indoor space.

A ground-source heat pump used a fluid flowing through pipe loops to draw heat from or discharge heat the ground to heat or cool the indoor space.
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A ground-source heat pump with a closed-loop horizontal “Slinky™ “piping arrangement

A ground-source heat pump with a closed-loop horizontal “Slinky™ “piping arrangement
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A high-efficiency heat pump is installed in a closet within this home’s conditioned space.

A high-efficiency heat pump is installed in a closet within this home’s conditioned space.
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A main vent is installed on the side of a drip leg

A main vent is installed on the side of a drip leg
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A mini-split air-conditioning system can be a highly effective low-energy approach to provide cooling to one designated zone in the house

A mini-split air-conditioning system can be a highly effective low-energy approach to provide cooling to one designated zone in the house
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A modern single-inlet direct evaporative cooler draws outside air through an 8- to 12-inch media filter

A modern single-inlet direct evaporative cooler draws outside air through an 8- to 12-inch media filter
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A nitrogen pressure test was completed on this ductless mini-split heat pump using a digital manifold gauge.

A nitrogen pressure test was completed on this ductless mini-split heat pump using a digital manifold gauge.
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A nylon draw band and tensioning tool are used to secure the inner coil of the pre-insulated flexible duct

A nylon draw band and tensioning tool are used to secure the inner coil of the pre-insulated flexible duct
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A nylon draw band and tensioning tool are used to secure the inner liner of the pre-insulated flexible duct

A nylon draw band and tensioning tool are used to secure the inner liner of the pre-insulated flexible duct
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A passive air inlet is one approach to providing makeup air when operating an exhaust-only ventilation system

A passive air inlet is one approach to providing makeup air when operating an exhaust-only ventilation system
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A passive flow hood is used to measure the flow rate of air that passes through a ceiling-mounted exhaust fan

A passive flow hood is used to measure the flow rate of air that passes through a ceiling-mounted exhaust fan
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A permanent awning prevents snow and overflowing ice dams from causing damage to HVAC equipment below.

A permanent awning prevents snow and overflowing ice dams from causing damage to HVAC equipment below.
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A portable CO monitor is used to test for ambient CO near a ventless combustion fireplace

A portable CO monitor is used to test for ambient CO near a ventless combustion fireplace
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A properly sized cold climate heat pump can meet 100% of a home’s heating load in nearly any location in the United States

A properly sized cold climate heat pump can meet 100% of a home’s heating load in nearly any location in the United States
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A properly sized high-efficiency heat pump is located in conditioned space in a closet inside the home.

A properly sized high-efficiency heat pump is located in conditioned space in a closet inside the home.
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A reversible window fan can operate via thermostatic or remote control and can selectively exhaust air or bring in outdoor air

A reversible window fan can operate via thermostatic or remote control and can selectively exhaust air or bring in outdoor air
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A riser vent is installed on the stub-out below the hand valve

A riser vent is installed on the stub-out below the hand valve
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A screened-in porch will protect windows from rain, provide shade, and allow more airflow through windows than window screens would

A screened-in porch will protect windows from rain, provide shade, and allow more airflow through windows than window screens would
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A seismic snubber is a type of bracket specifically designed to anchor heavy equipment to the floor to restrain it in the event of an earthquake.

A seismic snubber is a type of bracket specifically designed to anchor heavy equipment to the floor to restrain it in the event of an earthquake.
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A shallow, open floor plan allows free flow of cross ventilation through the house

A shallow, open floor plan allows free flow of cross ventilation through the house
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A single ductless heat pump heats and cools the country’s first DOE Zero Energy Ready certified manufactured home.

A single ductless heat pump heats and cools the country’s first DOE Zero Energy Ready certified manufactured home.
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A static pressure measurement is taken on this air handler using probes on the supply and return sides of the fan.

A static pressure measurement is taken on this air handler using probes on the supply and return sides of the fan.
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A supplemental dehumidifier can be integrated with the central air handler

A supplemental dehumidifier can be integrated with the central air handler
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A supplemental dehumidifier is integrated with the home’s HVAC air handler to provide extra dehumidification when needed

A supplemental dehumidifier is integrated with the home’s HVAC air handler to provide extra dehumidification when needed