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The white TPO membrane roof on the row house on the right performs extremely well at reflecting solar energy and maintaining cool surface temperatures while the black EPDM membrane roof on the left heats up rapidly in the sunlight

The white TPO membrane roof on the row house on the right performs extremely well at reflecting solar energy and maintaining cool surface temperatures while the black EPDM membrane roof on the left heats up rapidly in the sunlight
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There is 6 mil. polyethylene sheeting installed and sealed in the crawlspace

There is 6 mil. polyethylene sheeting installed and sealed in the crawlspace
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There is no polyethylene sheeting installed between the ground and the slab

There is no polyethylene sheeting installed between the ground and the slab
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There is no polyethylene sheeting installed in the crawlspace

There is no polyethylene sheeting installed in the crawlspace
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There is polyethylene sheeting installed to provide a capillary break between the ground and slab

There is polyethylene sheeting installed to provide a capillary break between the ground and slab
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Thermometer used to measure dry-bulb temperature

Thermometer used to measure dry-bulb temperature
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These ducts were installed within the home's conditioned space in a central chaise down the main hallway.

These ducts were installed within the home's conditioned space in a central chaise down the main hallway.
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These plots compare sizing approaches in terms of the approximate annual heating load a heat pump might carry throughout the year for a hypothetical home in Minneapolis, MN.

These plots compare sizing approaches in terms of the approximate annual heating load a heat pump might carry throughout the year for a hypothetical home in Minneapolis, MN.
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This “high static ducted cassette” heat pump system is similar to a traditional centrally ducted system, serving several areas of a home from one indoor unit

This “high static ducted cassette” heat pump system is similar to a traditional centrally ducted system, serving several areas of a home from one indoor unit
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This air handler is located within the homes conditioned space in a closet on the main floor of the home (Source: Tommy Williams Homes).

This air handler is located within the homes conditioned space in a closet on the main floor of the home (Source: Tommy Williams Homes).
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This depiction of a saddle installed window heat pump does not obstruct window use and provides fairly quiet 120 Volt operation

This depiction of a saddle installed window heat pump does not obstruct window use and provides fairly quiet 120 Volt operation
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This diagram provides a more realistic view of how a typical direct evaporative cooler operates

This diagram provides a more realistic view of how a typical direct evaporative cooler operates
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This experimental earth tube is 220 ft long, 8 inches in diameter, and is buried 10 feet deep

This experimental earth tube is 220 ft long, 8 inches in diameter, and is buried 10 feet deep
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This experimental radiative/evaporative hybrid cooling system uses water to reject heat at night through radiation and evaporation

This experimental radiative/evaporative hybrid cooling system uses water to reject heat at night through radiation and evaporation
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This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.

This exterior insulated slab-on-grade monolithic grade beam foundation is protected from pests by termite shield at the sill plate, borate-treated framing, flashing at end of wall insulation, brick veneer over slab-edge insulation, and rock ground cover.
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This heat pump compressor unit is elevated to avoid ground moisture and flooding, but water dripping from the roof above froze on the unit in winter, encasing it in ice.

This heat pump compressor unit is elevated to avoid ground moisture and flooding, but water dripping from the roof above froze on the unit in winter, encasing it in ice.
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This home uses light-colored standard paints and finishes on siding and roofing materials to reduce cooling loads without adding material cost.

This home uses light-colored standard paints and finishes on siding and roofing materials to reduce cooling loads without adding material cost.
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This house with an insulated slab is protected from pests with a termite shield at the sill plate, borate-treated framing, insect screen covering bottom of furring air gap, and brick veneer over slab-edge insulation

This house with an insulated slab is protected from pests with a termite shield at the sill plate, borate-treated framing, insect screen covering bottom of furring air gap, and brick veneer over slab-edge insulation
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This Houston home’s unique tri-generation system combines cooling, heating, dehumidifying, hot water, and power production and storage.

This Houston home’s unique tri-generation system combines cooling, heating, dehumidifying, hot water, and power production and storage.
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This infrared image shows little heat gain from north-facing double-pane windows with blinds, but significant heat output from computer monitors

This infrared image shows little heat gain from north-facing double-pane windows with blinds, but significant heat output from computer monitors
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This left-to-right sequence shows the method of wall extension to flood-proof a masonry house on a slab foundation. Here the new, raised floor is wood-framed over a wet-floodproofed crawlspace, but using fill to create a new raised slab is also an option.

This left-to-right sequence shows the method of wall extension to flood-proof a masonry house on a slab foundation. Here the new, raised floor is wood-framed over a wet-floodproofed crawlspace, but using fill to create a new raised slab is also an option.
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This MSHP operates with 120 volts power, has an EER of 18 Btu/Wh, uses about 800 W at full output, and operates remotely with a smart home control system

This MSHP operates with 120 volts power, has an EER of 18 Btu/Wh, uses about 800 W at full output, and operates remotely with a smart home control system
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This multi-split heat pump system incorporates several indoor units connected to just one outdoor unit; the indoor units include a wall-mounted unit, floor-mounted, ceiling cassette, and mini-air handler.

This multi-split heat pump system incorporates several indoor units connected to just one outdoor unit; the indoor units include a wall-mounted unit, floor-mounted, ceiling cassette, and mini-air handler.
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This night ventilation cooling system is timer-controlled and ducted to the home's HVAC ducts to bring in filtered fresh air at night.

This night ventilation cooling system is timer-controlled and ducted to the home's HVAC ducts to bring in filtered fresh air at night.