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In this ductless heat pump model, the air filters are located behind the hinged front panel

In this ductless heat pump model, the air filters are located behind the hinged front panel
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In this exhaust fan/light, both the light fixture and the fan are plugged in to the fan housing; unplug the light fixture to clean it and unplug the fan as an added precaution while cleaning the exhaust fan

In this exhaust fan/light, both the light fixture and the fan are plugged in to the fan housing; unplug the light fixture to clean it and unplug the fan as an added precaution while cleaning the exhaust fan
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In this ventilation configuration for a multifamily building, outside air enters through a dedicated outdoor air system (DOAS), and inside air exits the space through bathroom and kitchen exhaust fans

In this ventilation configuration for a multifamily building, outside air enters through a dedicated outdoor air system (DOAS), and inside air exits the space through bathroom and kitchen exhaust fans
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Incorporating vestibules to separate the garage from interior occupied space can reduce the transfer of contaminants.

Incorporating vestibules to separate the garage from interior occupied space can reduce the transfer of contaminants.
Presentation:

Indoor airPLUS Version 2 Reaches for the Sky: New Opportunities for Healthier Multifamily Buildings

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Infrared imaging shows cold conditioned air pouring out of the open floor cavities under this attic kneewall into the hot unconditioned attic

Infrared imaging shows cold conditioned air pouring out of the open floor cavities under this attic kneewall into the hot unconditioned attic
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Insert the new furnace/air handler filter in the filter slot of the furnace or air handler with the arrow pointed in the direction of air flow.

Insert the new furnace/air handler filter in the filter slot of the furnace or air handler with the arrow pointed in the direction of air flow.
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Install a continuous air barrier below or above ceiling insulation and install wind baffles.

Install a continuous air barrier below or above ceiling insulation and install wind baffles.
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Install a plug-in combination explosive gas (natural gas and propane) and carbon monoxide alarm near the gas water heater to provide early warning of a gas leak or carbon monoxide.

Install a plug-in combination explosive gas (natural gas and propane) and carbon monoxide alarm near the gas water heater to provide early warning of a gas leak or carbon monoxide.
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Install a self-closing door with weatherstripping and thoroughly air-seal the shared house-garage walls to help keep automobile exhaust and other pollutants out of the home.

Install a self-closing door with weatherstripping and thoroughly air-seal the shared house-garage walls to help keep automobile exhaust and other pollutants out of the home.
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Install an air barrier on the exterior of attic knee wall insulation.

Install an air barrier on the exterior of attic knee wall insulation.
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Install an air barrier over dropped ceilings or soffits

Install an air barrier over dropped ceilings or soffits
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Install insulation under platforms constructed in the attic for storage or equipment.

Install insulation under platforms constructed in the attic for storage or equipment.
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Install sheet metal to cover the gaps around a flue pipe in the attic; attach with screws or heavy staples, then seal seams with fire-rated caulk or foam

. Install sheet metal to cover the gaps around a flue pipe in the attic; attach with screws or heavy staples, then seal seams with fire-rated caulk or foam
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Install wood framing cross pieces in the attic rafter bays on each side of the duct chase

Install wood framing cross pieces in the attic rafter bays on each side of the duct chase
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Install wood framing cross pieces in the attic rafter bays on each side of the duct chase

Install wood framing cross pieces in the attic rafter bays on each side of the duct chase
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Installing a garage exhaust fan is one important step in keeping auto exhaust and other pollutants out of the home

Installing a garage exhaust fan is one important step in keeping auto exhaust and other pollutants out of the home
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Insulate and air seal the shaft around a skylight in a vented attic

Insulate and air seal the shaft around a skylight in a vented attic
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Interior paints and finishes certified low-emission

Interior paints and finishes certified low-emission
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It is not recommended to install HVAC systems in enclosed attached garages. However, when HVAC systems are installed in enclosed garages, they must comply with ASHRAE 62.2 duct leakage thresholds.

It is not recommended to install HVAC systems in enclosed attached garages. However, when HVAC systems are installed in enclosed garages, they must comply with ASHRAE 62.2 duct leakage thresholds.
Video:

Karuna Passive House Ventilation System

Presentation:

Kicking Gas! Going All-Electric for the Health of Your Family and the Earth

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Latches were added to this attic access panel to hold it more tightly against the weatherstripping for better air sealing when closed.

Latches were added to this attic access panel to hold it more tightly against the weatherstripping for better air sealing when closed.
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Limited attic access can make inspections for missing air barriers and insulation challenging

Limited attic access can make inspections for missing air barriers and insulation challenging