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The post-and-pier foundation of this home failed in an earthquake

The post-and-pier foundation of this home failed in an earthquake
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The reverse block method for seismic retrofit bracing of a cripple wall uses a 2x4 attached to the sill plate to provide a means to attach the plywood cripple wall sheathing to the sill plate

The reverse block method for seismic retrofit bracing of a cripple wall uses a 2x4 attached to the sill plate to provide a means to attach the plywood cripple wall sheathing to the sill plate
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The small heat pump located on top of the tank on a heat pump water heater extracts heat from the surrounding air to create hot water

The small heat pump located on top of the tank on a heat pump water heater extracts heat from the surrounding air to create hot water
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The solar hot water system with 80-gallon storage tank should provide all the hot water a typical family needs.

The solar hot water system with 80-gallon storage tank should provide all the hot water a typical family needs.
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The ultra-efficient air-to-water heat pump draws heat from the outside air to heat inside room air in winter and domestic hot water year-round.

The ultra-efficient air-to-water heat pump draws heat from the outside air to heat inside room air in winter and domestic hot water year-round.
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The ultra-efficient ground-source heat pump provides the home with forced-air heating and cooling, and hot water.

The ultra-efficient ground-source heat pump provides the home with forced-air heating and cooling, and hot water.
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The universal retrofit foundation plate is used to connect the concrete foundation to the sill plate as part of a seismic retrofit

The universal retrofit foundation plate is used to connect the concrete foundation to the sill plate as part of a seismic retrofit
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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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The wall hung boiler provides heat for the central air handler as hot water.

The wall hung boiler provides heat for the central air handler as hot water.
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The walls of this unreinforced masonry house crumbled in an earthquake.

The walls of this unreinforced masonry house crumbled in an earthquake.
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The water heater and other appliances are located above the Base Flood Elevation.

The water heater and other appliances are located above the Base Flood Elevation.
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Thermosiphon solar hot water system

Thermosiphon solar hot water system
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Thermosyphon solar hot water heater (commercial application).

Thermosyphon solar hot water heater (commercial application).
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These State of California-approved seismic gas shutoff valves (also known as earthquake valves) are installed on the fuel line from the meter to the home to stop the flow of natural gas if the sensor detects ground movement above about 5.4 (Richter)

These State of California-approved seismic gas shutoff valves (also known as earthquake valves) are installed on the fuel line from the meter to the home to stop the flow of natural gas if the sensor detects ground movement above about 5.4 (Richter)
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This brick chimney was damaged during an earthquake.

This brick chimney was damaged during an earthquake.
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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 chimney was not adequately attached to the structure and fell away during an earthquake

This chimney was not adequately attached to the structure and fell away during an earthquake
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This fuel tank sits at grade but is anchored through its concrete base to the ground beneath with helical earth anchors

This fuel tank sits at grade but is anchored through its concrete base to the ground beneath with helical earth anchors
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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 Heat Pump changes EVERYTHING | R290 Heat Pump

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This heat pump water heater has been fitted with ducts to exhaust its waste cooling into the occupied living area

This heat pump water heater has been fitted with ducts to exhaust its waste cooling into the occupied living area
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This Heat Pump Water Heater has Pipe insulation installed on the hot water line (on left) and on the cold water line (on right)

This Heat Pump Water Heater has Pipe insulation installed on the hot water line (on left) and on the cold water line (on right)