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Solar bypass plumbing detail

Solar bypass plumbing detail
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Spray foam insulates and air seals the exterior wall behind the fireplace.

Spray foam insulates and air seals the exterior wall behind the fireplace.
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Spray foam insulation insulates and air seals around plumbing pipes and top plates in the attic.

Spray foam insulation insulates and air seals around plumbing pipes and top plates in the attic.
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Sump pumps should have tight fitting cover

Sump pumps should have tight fitting cover
Case Study:

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

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The foil-faced insulation behind this fireplace provides an air barrier and thermal shield.

The foil-faced insulation behind this fireplace provides an air barrier and thermal shield.
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The hot water recirculation pump is hidden behind the water heater in a closet.

The hot water recirculation pump is hidden behind the water heater in a closet.
Video:

The Mechanics of a Ground Source Heat Pump

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The pipe connections for faucets, dishwashers, garbage disposals, and other water using appliances can be a source of leaks.

The pipe connections for faucets, dishwashers, garbage disposals, and other water using appliances can be a source of leaks.
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The shower diverter in bath/shower combinations is one of the common sources of leaks in tub faucets.

The shower diverter in bath/shower combinations is one of the common sources of leaks in tub faucets.
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The sump pump is sealed to the subslab vapor barrier with sealing tape to prevent soil gas from leaking around the sump bucket.

The sump pump is sealed to the subslab vapor barrier with sealing tape to prevent soil gas from leaking around the sump bucket.
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The sump pumps in this basement are covered with gasketed lids to keep soil gases out of the home.

The sump pumps in this basement are covered with gasketed lids to keep soil gases out of the home.
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The very high efficiency (4.7 COP) ground-source heat pump provides hot water to a tank for radiant floor heat and domestic hot water.

The very high efficiency (4.7 COP) ground-source heat pump provides hot water to a tank for radiant floor heat and domestic hot water.
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Thermosyphon solar hot water heater (commercial application).

Thermosyphon solar hot water heater (commercial application).
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This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a multi pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance

This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a multi pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance
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This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a single pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance

This central heat pump water heating system with a hot water circulation loop that returns to the primary storage tank relies on a single pass heat pump to provide both primary DHW heating and hot water circulation temperature maintenance
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This fully packaged/skid-mounted central heat pump water heating system was shipped to the building on a truck and craned into location

This fully packaged/skid-mounted central heat pump water heating system was shipped to the building on a truck and craned into location
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This fully specified central heat pump water heating system has four individual outdoor heat pump units plumbed in parallel to indoor storage tanks

This fully specified central heat pump water heating system has four individual outdoor heat pump units plumbed in parallel to indoor storage tanks
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This home is piped with an insulated hot water recirculation loop that speeds hot water to each fixture while helping to reduce water waste.

This home is piped with an insulated hot water recirculation loop that speeds hot water to each fixture while helping to reduce water waste.
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This home’s domestic hot water is provided by three systems: solar water heating panels, a heat pump water heater, and an air-to-water heat pump, which also provides hot water to a fan coil.

This home’s domestic hot water is provided by three systems: solar water heating panels, a heat pump water heater, and an air-to-water heat pump, which also provides hot water to a fan coil.
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This mechanical room contains both the storage tanks (right) and heat pumps (left) of a central heat pump water heating system

This mechanical room contains both the storage tanks (right) and heat pumps (left) of a central heat pump water heating system
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This packaged central heat pump water heating system has the heat pumps on the exterior of the blue enclosure, and the storage tanks, temperature maintenance equipment, mixing valve, and control modules on the inside

This packaged central heat pump water heating system has the heat pumps on the exterior of the blue enclosure, and the storage tanks, temperature maintenance equipment, mixing valve, and control modules on the inside
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This plumbing pipe is wrapped with a stainless steel mesh skirt that is clamped to the pipe before the concrete slab is poured to to keep out bugs and rodents

This plumbing pipe is wrapped with a stainless steel mesh skirt that is clamped to the pipe before the concrete slab is poured to to keep out bugs and rodents
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This retrofit central heat pump water heater system utilizes the existing water heater as a swing tank to provide temperature maintenance for the hot water circulation loop

This retrofit central heat pump water heater system utilizes the existing water heater as a swing tank to provide temperature maintenance for the hot water circulation loop