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An Energy Recovery Ventilator provides outside air to this dwelling unit; a range hood with dedicated makeup air provides local kitchen exhaust; a radiant heating system provides heating

An Energy Recovery Ventilator provides outside air to this dwelling unit; a range hood with dedicated makeup air provides local kitchen exhaust; a radiant heating system provides heating
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An ENERGY STAR central exhaust ventilation test is performed on a rooftop ERV duct system by an ENERGY STAR MFNC rater

An ENERGY STAR central exhaust ventilation test is performed on a rooftop ERV duct system by an ENERGY STAR MFNC rater.
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An ERV’s supply and exhaust design airflow rate (CFM), external static pressure (ESP), and total static pressure (TSP) are shown on this HVAC Schedule in the mechanical plans; the static pressures are shown in units of inches of water

An ERV’s supply and exhaust design airflow rate (CFM), external static pressure (ESP), and total static pressure (TSP) are shown on this HVAC Schedule in the mechanical plans; the static pressures are shown in units of inches of water
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An exhaust fan (lower square grill) is installed in a laundry room ceiling next to an HVAC supply register (upper rectangular grill)

An exhaust fan (lower square grill) is installed in a laundry room ceiling next to an HVAC supply register (upper rectangular grill)
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An exhaust fan is properly ducted to an exterior wall vent

An exhaust fan is properly ducted to an exterior wall vent
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An in-line airflow station installed in rigid duct provides a location to measure ventilation airflow

An in-line airflow station installed in rigid duct provides a location to measure ventilation airflow
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An in-line exhaust fan supplements the ability to exhaust moisture-laden air and lint from a dryer

An in-line exhaust fan supplements the ability to exhaust moisture-laden air and lint from a dryer
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Apply a nylon tie on top of the tape.

Apply a nylon tie on top of the tape.
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Apply a robust amount of UL-181 fiber reinforced duct sealant mastic paste to cover well past the edges of the tape.

Apply a robust amount of UL-181 fiber reinforced duct sealant mastic paste to cover well past the edges of the tape.
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Apply a thick layer of UL-181 fiber reinforced duct sealant mastic paste spanning over the polyester film of the flex duct core, the tape, and nylon tie, to the take-off collar.

Apply a thick layer of UL-181 fiber reinforced duct sealant mastic paste spanning over the polyester film of the flex duct core, the tape, and nylon tie, to the take-off collar.
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Assembled section of fiber board duct

Assembled section of fiber board duct
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At the outlet of the dryer exhaust duct, install a hooded vent with a louvered damper

At the outlet of the dryer exhaust duct, install a hooded vent with a louvered damper
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Back-draft damper still has a piece of tape that prevented it from rattling during shipping

Back-draft damper still has a piece of tape that prevented it from rattling during shipping
Video:

Backdraft Dampers

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Bathroom and Kitchen Exhaust Fans (1)

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Bathroom and Kitchen Exhaust Fans (2)

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Bathroom Exhaust

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Bathroom exhaust fans are timer-operated to encourage removal of moisture from the home.

Bathroom exhaust fans are timer-operated to encourage removal of moisture from the home.
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Bathrooms should be equipped with an exhaust fan that vents directly outdoors

Bathrooms should be equipped with an exhaust fan that vents directly outdoors
Case Study:

Baxter Community - High Performance Green Building

Baxter Community - High Performance Green Building
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Because this ICF and spray foamed house is so well insulated, the HVAC system is smaller, the round metal ducts are smaller diameter, and the duct layout is more compact.

Because this ICF and spray foamed house is so well insulated, the HVAC system is smaller, the round metal ducts are smaller diameter, and the duct layout is more compact.
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Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa

Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
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Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa

Bedrooms pressure-balanced and provide 1 sq. in. of free area opening per 1 CFM of supply air or achieve a Rater-measured pressure differential ≤ 3 Pa
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Block off registers before installing spray sealant in HVAC ducts

Block off registers before installing spray sealant in HVAC ducts