Showing results 1 - 50 of 79
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Right: dedicated tank connections for HPWH inlet and outlet provide hydraulic separation
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A central heat pump water heating system with a parallel loop tank temperature maintenance configuration uses a multi pass heat pump water heater to provide all the heat for hot water circulation temperature maintenance.
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A central heat pump water heating system with a parallel loop tank temperature maintenance configuration uses a multi-pass heat pump water heater to provide all the heat for hot water circulation temperature maintenance
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A central heat pump water heating system with a temperature maintenance swing tank configuration uses the water from the primary storage tank to provide most of the heat for hot water circulation temperature maintenance
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A heat pump water heater has a small heat pump located on top of the tank which extracts heat from the surrounding air to create hot water.
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Alternative locations of heat pump water heaters in a hypothetical multifamily building using a cluster deployment showing numerous possible deployment options including clusters consisting of pairs on the same floor or on different floors
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Central heat pump water heaters like this fully packaged system provide efficient, reliable domestic hot water for multifamily buildings; storage tanks are within the enclosure, and the heat pump is seen just outside.
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Climate Zones Where a Heat Pump Water Heater can be Installed in Unconditioned Space
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Condensate from this heat pump water heater is routed to a nearby floor drain, shared with the condensate lines from a condensing gas furnace and an air conditioning coil
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Floorplan of a heat pump water heater located in a closet in an exterior corridor or breezeway rather than within the thermal envelope of a multifamily dwelling unit
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Floorplan of a heat pump water heater located in a closet in an interior corridor rather than within the thermal envelope of a multifamily dwelling unit
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Floorplan of a heat pump water heater located in an interior closet with active (ducted) ventilation
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Floorplan of a heat pump water heater located in an interior closet with passive ventilation
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Floorplan of a hypothetical multifamily building showing corridors and stairwells
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Floorplan of a hypothetical multifamily building with hot water First Hour Rating (FHR) requirements (in gallons) noted for each dwelling unit
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Floorplan of heat pump water heater located in an exterior closet with transfer grilles in the exterior wall or a louvered door to allow ventilation
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Heat pump water heater is installed in the interior closet of a multifamily dwelling unit
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Passive venting options for a heat pump water heater located in a closet or small room include: a fully louvered door, high and low transfer grilles, or a high transfer grille with a 0.75-inch door undercut
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Pipe insulation helps retain heat in the pipes which provide hot water from the air-to-water heat pump for domestic hot water and space heating.
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Possible locations of heat pump water heater (HPWH)s in a hypothetical multifamily building using a one-to-one deployment of one HPWH per apartment
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Possible locations of heat pump water heaters in a hypothetical multifamily building using a cluster deployment where pairs of dwelling units share a heat pump water heater
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Recommended Installation Locations for a Heat Pump Water Heater Based on the Climate Zone of Home
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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.
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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.
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Right - This 80-gallon heat pump water heater is ducted to pull heat from outside air drawn from the south side of the house and to exhaust cooled air outside on the north side of the house to efficiently heat water without impacting room temperatures.
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Right – A ground-source heat pump provides space heating and domestic hot water.
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Right – An air-to-water heat pump efficiently provides hot water for radiant floor heating.
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Right – An air-to-water heat pump provides water and space heating while a heat recovery ventilator provides fresh air that is filtered by the HEPA filter.
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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.
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Right – Possible Heat Pump Water Heater Locations on a Multifamily Floorplan including an interior corridor, eight apartments, and meeting rooms
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Right – Possible Heat Pump Water Heater Locations on a Multifamily Floorplan including interior corridor closets, under-stair closes, and utility rooms
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Right – Possible Heat Pump Water Heater Locations on Full Plate Floorplan in a Multifamily Building
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Right – The heat pump water heater is equipped with a recirculating pump to push hot water to distant fixtures.
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Right – This heat pump water heater is equipped with a recirculation pump to speed hot water to distant faucets.
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Right: Maintenance valves are installed at the inlet and outlet of this central heat pump water heater
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Right: This closet door for a heat pump water heater is louvered to allow warm air to enter and exhaust air to leave the closet
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Right: This heat pump water heater is in a basement within the thermal boundary but not actively conditioned. It has over 770 ft² of space with easy access to the control panel and clearance for airflow to the air intake (top) and exhaust (side)
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Right: This heat pump water heater is installed in a garage next to the furnace where there is a lot of space for accessing the unit, and for intake and exhaust; a foam pad insulates the base; the condensate line is correctly drained and pipe insulation
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Right: This heat pump water heater is installed in a laundry room with enough space for the control panel and vents to be clear of obstructions; The HPWH can use heat from the dryer to heat water, but the seismic straps should be lower
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Right: This heat pump water heater is installed in a small space so the, intake air is ducted from an adjacent room; the water heater since on a pad of foam insulation and has a good drain line configuration but the waterpipes lack insulation
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Right: This heat pump water heater is installed in a utility closet where it can use heat from the clothes washer and heat pump clothes dryer and has access to a floor drain for condensate