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Right - Water pressure reducing valves should be installed prior to fixture piping such as where water enters the home.

Right - Water pressure reducing valves should be installed prior to fixture piping such as where water enters the home.
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Right – A builder of a DOE Zero Energy Ready certified home explains how a central manifold distribution system with PEX piping works.

Right – A builder of a DOE Zero Energy Ready certified home explains how a central manifold distribution system with PEX piping works.
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Right – Adequate space is provided near the air handler for the water lines of this ground-source heat pump.

Right – Adequate space is provided near the air handler for the water lines of this ground-source heat pump.
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Right – Caulk seals around the pipes in the concrete.

Right – Caulk seals around the pipes in the concrete.
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Right – Hot water from this heat pump water heater is distributed efficiently to each hot water use in the home through a central manifold via PEX piping.

Right – Hot water from this heat pump water heater is distributed efficiently to each hot water use in the home through a central manifold via PEX piping.
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Right – PEX piping speeds hot water directly from the water heater to faucets through the attic in this slab-on-grade home.

Right – PEX piping speeds hot water directly from the water heater to faucets through the attic in this slab-on-grade home.
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Right – Plumbing diagram showing locations for recirculation pump sensors.

Right – Plumbing diagram showing locations for recirculation pump sensors.
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Right – Plumbing pipes have flanges that are sealed to the wall with caulk to prevent pest entry

Right – Plumbing pipes have flanges that are sealed to the wall with caulk to prevent pest entry
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Right – Spray foam is used to carefully seal behind plumbing that was installed in an exterior wall.

Right – Spray foam is used to carefully seal behind plumbing that was installed in an exterior wall.
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Right – Spray foam is used to seal around PEX plumbing pipes.

Right – Spray foam is used to seal around PEX plumbing pipes.
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Right – Tape and spray foam are used to air seal around pipes that extend through exterior walls.

Right – Tape and spray foam are used to air seal around pipes that extend through exterior walls.
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Right – The heat pump water heater is equipped with a recirculating pump to push hot water to distant fixtures.

Right – The heat pump water heater is equipped with a recirculating pump to push hot water to distant fixtures.
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Right – The holes for plumbing are neatly cut and properly sealed with foam.

Right – The holes for plumbing are neatly cut and properly sealed with foam.
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Right – The outside unit of the mini-split heat pump system is installed on a concrete pad and away from shrubs.

Right – The outside unit of the mini-split heat pump system is installed on a concrete pad and away from shrubs.
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Right – The pipes on this heat pump water heater are carefully insulated.

Right – The pipes on this heat pump water heater are carefully insulated.
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Right – These neatly cut holes have been properly sealed with caulk and foam.

Right – These neatly cut holes have been properly sealed with caulk and foam.
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Right – This hole has been neatly cut and properly sealed with foam.

Right – This hole has been neatly cut and properly sealed with foam.
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Right – This home uses a light-colored exterior wall to reduce solar heat gain

Right – This home uses a light-colored exterior wall to reduce solar heat gain
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Right – This home uses a white roof and walls to reduce solar heat gain

Right – This home uses a white roof and walls to reduce solar heat gain
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Right – This home uses light tan stucco and white trim to reduce solar heat gain.

Right – This home uses light tan stucco and white trim to reduce solar heat gain.
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Right – This metal roof is being coated with a cool (high SRI) coating to reduce solar heat gain

Right – This metal roof is being coated with a cool (high SRI) coating to reduce solar heat gain
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Right – This neatly cut hole has been properly sealed with foam.

Right – This neatly cut hole has been properly sealed with foam.
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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: dedicated tank connections for HPWH inlet and outlet provide hydraulic separation

Right: dedicated tank connections for HPWH inlet and outlet provide hydraulic separation