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Showing 145 - 168 of 391 results:

Video:

How it Works: Ground Source (Geothermal) Heat Pumps (GSHP)

Video:

How to Operate your Wood Stove More Efficiently

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If fans share common exhaust duct, back-draft dampers installed

If fans share common exhaust duct, back-draft dampers installed
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If integrating an ERV/HRV with the heating/cooling duct system, add dedicated ducts for either the supply or return side to prevent short-circuiting of air distribution

If integrating an ERV/HRV with the heating/cooling duct system, add dedicated ducts for either the supply or return side to prevent short-circuiting of air distribution
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If the air filter is quite loose in the slot, you can add adhesive weatherstripping foam tape around the perimeter of the cardboard frame to minimize the amount of air passing around the filter.

If the air filter is quite loose in the slot, you can add adhesive weatherstripping foam tape around the perimeter of the cardboard frame to minimize the amount of air passing around the filter.
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In a Category I gas-fired, natural-draft boiler, the natural draft of the heated flue pulls combustion air through the draft hood into the combustion chamber

In a Category I gas-fired, natural-draft boiler, the natural draft of the heated flue pulls combustion air through the draft hood into the combustion chamber
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In heating mode, split system heat pumps absorb heat from the outside air and “pump” that heat to the indoor air handler unit, which releases it to the inside air.

In heating mode, split system heat pumps absorb heat from the outside air and “pump” that heat to the indoor air handler unit, which releases it to the inside air.
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In this dwelling unit ventilation configuration, a forced air system provides outside air at the same rate as the air being exhausted from the bathroom fan; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake

In this dwelling unit ventilation configuration, a forced air system provides outside air at the same rate as the air being exhausted from the bathroom fan; local kitchen exhaust is provided by a range hood with a dedicated makeup air intake
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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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In this ventilation configuration, an air handler provides outside air at the same rate as the air being exhausted from a bathroom fan; local kitchen exhaust has a dedicated makeup air intake; dehumidification is provided separately

In this ventilation configuration, an air handler provides outside air at the same rate as the air being exhausted from a bathroom fan; local kitchen exhaust has a dedicated makeup air intake; dehumidification is provided separately
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Insert an electric leaf blower into the dryer exhaust duct and turn on at lowest setting to blow out the duct

Insert an electric leaf blower into the dryer exhaust duct and turn on at lowest setting to blow out the duct
Video:

Karuna Passive House Air-To-Water Heat Pump

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Kitchens should be equipped with an exhaust fan that vents directly outdoors

Kitchens should be equipped with an exhaust fan that vents directly outdoors
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Lower-cost local ERVs are usually installed in a ceiling to supply outdoor air to and exhaust air from the room in which they are located

Lower-cost local ERVs are usually installed in a ceiling to supply outdoor air to and exhaust air from the room in which they are located
Video:

Madrona Passive House | CO2 Fired Heat Pump

Video:

Masonry Heater Retrofit

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Measure the air filter space in the return grille of the HVAC system to determine the thickest air filter the space will accommodate, in this case two inches.

Measure the air filter space in the return grille of the HVAC system to determine the thickest air filter the space will accommodate, in this case two inches.
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Measure the air flow of an exhaust fan with a flow hood

Measure the air flow of an exhaust fan with a flow hood
Video:

Mini-Split (Ductless) Heat Pumps (1)

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Mini-Split (Ductless) Heat Pumps (2)

Video:

Moisture Management in Residential Construction Series - Managing Water Vapor Flow

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Move the dryer to access the dryer exhaust vent

Move the dryer to access the dryer exhaust vent
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Mushroom-shaped rooftop exhaust fans provide powered central exhaust ventilation for this high-rise commercial building

Mushroom-shaped rooftop exhaust fans provide powered central exhaust ventilation for this high-rise commercial building