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This plot shows a heat pump’s minimum and maximum heating capacities overlaid with a home’s heating load line, allowing a designer to assess how well-suited the equipment is for the specific home.

This plot shows a heat pump’s minimum and maximum heating capacities overlaid with a home’s heating load line, allowing a designer to assess how well-suited the equipment is for the specific home.
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This simple decision tree can help homeowners and contractors determine options about wall and window upgrades when re-siding a home

This simple decision tree can help homeowners and contractors determine options about wall and window upgrades when re-siding a home
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This simple decision tree can help homeowners and contractors make decisions about wall and window upgrades when re-siding a home

This simple decision tree can help homeowners and contractors make decisions about wall and window upgrades when re-siding a home
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This single-zone mini-split ductless heat pump has only one indoor wall-mounted unit and one outdoor unit.

This single-zone mini-split ductless heat pump has only one indoor wall-mounted unit and one outdoor unit.
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This traditional centrally ducted heat pump heats and cools the entire home through a network of ducts.

This traditional centrally ducted heat pump heats and cools the entire home through a network of ducts.
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This upflow air handler for a traditional heat pump has an electric resistance auxiliary heating element located at the top of the unit (circled in red).

This upflow air handler for a traditional heat pump has an electric resistance auxiliary heating element located at the top of the unit (circled in red).
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This utility room houses a high-efficiency gas boiler to provide hot water for the radiant floor heating system and faucets. It also has a central air source heat pump and an energy recovery ventilator.

This utility room houses a high-efficiency gas boiler to provide hot water for the radiant floor heating system and faucets. It also has a central air source heat pump and an energy recovery ventilator.
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This vinyl siding melted when exposed to the high heat of a wildfire.

This vinyl siding melted when exposed to the high heat of a wildfire.
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This wall-hung ductless indoor mini-split heat pump contains a fan, filter, and heating/cooling coil just like a traditional central air handler for a ducted heat pump system

This wall-hung ductless indoor mini-split heat pump contains a fan, filter, and heating/cooling coil just like a traditional central air handler for a ducted heat pump system
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This wall-mounted evaporative cooler is easy to access for maintenance

This wall-mounted evaporative cooler is easy to access for maintenance
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This wood siding has sustained heavy damage from termites.

This wood siding has sustained heavy damage from termites.
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Three-zone ductless mini-split system consisting of two wall-mounted and one ceiling-mounted indoor ductless units and one outdoor unit

Three-zone ductless mini-split system consisting of two wall-mounted and one ceiling-mounted indoor ductless units and one outdoor unit
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Three-zone mini-split system consisting of one wall-mounted ductless unit, one ceiling-mounted ductless unit, and one ducted indoor unit, all connected to one outdoor unit

Three-zone mini-split system consisting of one wall-mounted ductless unit, one ceiling-mounted ductless unit, and one ducted indoor unit, all connected to one outdoor unit
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To attach the flex duct to a main trunk duct or any other connection, the flex duct is pulled over the connecting collar at least 2 inches past the raised bead, then the insulation is pulled back

To attach the flex duct to a main trunk duct or any other connection, the flex duct is pulled over the connecting collar at least 2 inches past the raised bead, then the insulation is pulled back
Video:

Total Duct Leakage Tests

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Two pieces of flex duct are spliced together with a metal sleeve, nylon draw bands, mastic, metal tape, and more mastic

Two pieces of flex duct are spliced together with a metal sleeve, nylon draw bands, mastic, metal tape, and more mastic
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Typical coaxial coil (liquid-to-refrigerant heat exchanger) used in a ground-source heat pump

Typical coaxial coil (liquid-to-refrigerant heat exchanger) used in a ground-source heat pump
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Typical ground-source plumbed system

Typical ground-source plumbed system
Video:

University of Minnesota-NorthernSTAR: A Natural Gas-Fired Combi System for Space Heating and Hot Water

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Use only Underwriters Laboratory UL-181 approved tape

Use only Underwriters Laboratory UL-181 approved tape
Presentation:

Variable Capacity Comfort Systems and Smart Ventilation Systems in High-Performance Homes

Variable Capacity Comfort Systems and Smart Ventilation Systems in High-Performance Homes
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Vented Attic vs Unvented Cathedral Attic Air Flow

Vented Attic vs Unvented Cathedral Attic Air Flow
Case Study:

Veridian Homes: Cold Climate Region 40+% Energy Savings

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What mesh opening size is needed to keep out what type of pests?

What mesh opening size is needed to keep out what type of pests?