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Right - The geothermal heat pump provides hot water for radiant floor heating, domestic hot water, and the air handler for space conditioning upstairs.

Right - The geothermal heat pump provides hot water for radiant floor heating, domestic hot water, and the air handler for space conditioning upstairs.
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Right - The home’s ground source heat pump preheats water for the air source heat pump water heater.

Right - The home’s ground source heat pump preheats water for the air source heat pump water heater.
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Right - The home’s high-efficiency gas boiler provides domestic hot water as well as in-floor radiant heat, while a high-efficiency heat pump provides cooling and a secondary source of heating.

Right - The home’s high-efficiency gas boiler provides domestic hot water as well as in-floor radiant heat, while a high-efficiency heat pump provides cooling and a secondary source of heating.
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Right - The precast insulated concrete walls of the basement provide a conditioned space for the high-efficiency (18 SEER, 9.5 HSPF) air-source heat pump, with its variable-speed fan, five-stage compressor, and MERV 11 filter.

Right - The precast insulated concrete walls of the basement provide a conditioned space for the high-efficiency (18 SEER, 9.5 HSPF) air-source heat pump, with its variable-speed fan, five-stage compressor, and MERV 11 filter.
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Right - The sealed conditioned crawlspace provides a clean, dry, and temperate environment for the home’s supplemental dehumidifier.

Right - The sealed conditioned crawlspace provides a clean, dry, and temperate environment for the home’s supplemental dehumidifier.
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Right - This evaporative cooler is wall mounted to reduce leak effects and allow for ease of maintenance.

Right - This evaporative cooler is wall mounted to reduce leak effects and allow for ease of maintenance.
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Right - Use high-wind vinyl siding in hurricane and high wind prone areas.

Right - Use high-wind vinyl siding in hurricane and high wind prone areas.
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Right – An insulated space is provided in the home’s attic to house the HVAC equipment.

Right – An insulated space is provided in the home’s attic to house the HVAC equipment.
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Right – Commissioning of HVAC equipment is important for best performance.

Right – Commissioning of HVAC equipment is important for best performance.
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Right – Flood vents are located near grade and HVAC equipment is elevated.

Right – Flood vents are located near grade and HVAC equipment is elevated.
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Right – Metal flashing is installed between the deck boards and house wall with the top of the flashing extending up behind the siding and the bottom of the flashing extending out and down over the ledger board

Right – Metal flashing is installed between the deck boards and house wall with the top of the flashing extending up behind the siding and the bottom of the flashing extending out and down over the ledger board
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Right – The builder has provided homeowners manuals and racks to hold them on the side of the HVAC cabinet in the utility room.

Right – The builder has provided homeowners manuals and racks to hold them on the side of the HVAC cabinet in the utility room.
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Right – The corridor in this multistory building is pressurized with outdoor supply air.

Right – The corridor in this multistory building is pressurized with outdoor supply air.
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Right – The elevator lobby of this multistory building is pressurized with outdoor air supplied to the space through this ceiling supply register.

Right – The elevator lobby of this multistory building is pressurized with outdoor air supplied to the space through this ceiling supply register.
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Right – The HVAC equipment is tested after installation.

Right – The HVAC equipment is tested after installation.
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Right – The HVAC unit installed in the insulated attic uses a heat pump to provide heating and cooling while also providing dehumidification and fresh air ventilation.

Right – The HVAC unit installed in the insulated attic uses a heat pump to provide heating and cooling while also providing dehumidification and fresh air ventilation.
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Right – This energy recovery ventilator provides fresh air and exhausts stale air through a heat exchanger that recovers heat from the outgoing air in winter and reduces heat from incoming air in the summer to provide ventilation without wasting energy.

Right – This energy recovery ventilator provides fresh air and exhausts stale air through a heat exchanger that recovers heat from the outgoing air in winter and reduces heat from incoming air in the summer to provide ventilation without wasting energy.
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Right – This home’s HVAC system consists of a ground source heat pump that provides heating and cooling with a rated efficiency of 5.0 COP.

Right – This home’s HVAC system consists of a ground source heat pump that provides heating and cooling with a rated efficiency of 5.0 COP.
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Right – This HVAC condensing unit is elevated on a raised-slab

Right – This HVAC condensing unit is elevated on a raised-slab
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Right (decent): For a relatively high-capacity ccASHP sized per Approach 3 or 4 to meet nearly 100% of the heating load, this heat pump’s modulating zone has a decent overlap with the home’s heating load line, reducing short-cycling.

Right (decent): For a relatively high-capacity ccASHP sized per Approach 3 or 4 to meet nearly 100% of the heating load, this heat pump’s modulating zone has a decent overlap with the home’s heating load line, reducing short-cycling.
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Right: A well-constructed air handler closet

Right: A well-constructed air handler closet
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Right: Flashing the butt joints in lap siding installations is a better practice than relying on caulk to seal the joints.

Right: Flashing the butt joints in lap siding installations is a better practice than relying on caulk to seal the joints.
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Right: Sized per Approach 1, this heat pump will have minimal short-cycling; since sized using Approach 1, it will require backup heat when temp is below 30°F but could still contribute significant heating down to heating design temp (-6°F) and lower

Right: Sized per Approach 1, this heat pump will have minimal short-cycling; since sized using Approach 1, it will require backup heat when temp is below 30°F but could still contribute significant heating down to heating design temp (-6°F) and lower
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Right: Sized per Approach 3 or 4, this heat pump’s modulating zone has a large overlap with the home’s heating load line, resulting in minimal short-cycling; the unit may require a small amount of backup heat during the very coldest hours of winter.

Right: Sized per Approach 3 or 4, this heat pump’s modulating zone has a large overlap with the home’s heating load line, resulting in minimal short-cycling; the unit may require a small amount of backup heat during the very coldest hours of winter.