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Grill and duct size based on calculated requirements for net free area

Grill and duct size based on calculated requirements for net free area
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Hand tools for cutting fiber board sheets include a knife, straight edge, and color-coded edge-cutting tools

Hand tools for cutting fiber board sheets include a knife, straight edge, and color-coded edge-cutting tools
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Hanger straps should be at least 1.5 inches wide

Hanger straps should be at least 1.5 inches wide
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Heat Recovery Ventilator (HRV)

Case Study:

High Performance Builder Spotlight: David Weekley Homes

Case Study:

High Performance Builder Spotlight: Wathen Castanos Hybrid Homes

Presentation:

High Performance HVAC: Low-Load and Plug-n-Play HVAC Systems

High Performance HVAC: Low-Load and Plug-n-Play HVAC Systems
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Hold the return grille with one hand while unlatching with the other so you can safely lower the grille.

Hold the return grille with one hand while unlatching with the other so you can safely lower the grille.
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Hot Spot: Closed Crawlspace - Ventilation

Video:

How to Operate your Wood Stove More Efficiently

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HVAC duct layout

HVAC duct layout
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HVAC ducts can be encapsulated in 3 inches of closed-cell spray foam, then buried in R-49 of blown fiberglass insulation after the ceiling drywall is installed in the vented attic.

HVAC ducts can be encapsulated in 3 inches of closed-cell spray foam, then buried in R-49 of blown fiberglass insulation after the ceiling drywall is installed in the vented attic.
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HVAC ducts, cavities used as ducts, and combustion inlets and outlets may pass perpendicularly through exterior walls but shall not be run within exterior walls unless at least R-6 continuous insulation is provided on exterior side of the cavity

HVAC ducts, cavities used as ducts, and combustion inlets and outlets may pass perpendicularly through exterior walls but shall not be run within exterior walls unless at least R-6 continuous insulation is provided on exterior side of the cavity
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HVAC equipment should never be exposed to the garage; instead, locate them in air-sealed closets, with weatherstripping, spring-loaded hinges, and mastic.

HVAC equipment should never be exposed to the garage; instead, locate them in air-sealed closets, with weatherstripping, spring-loaded hinges, and mastic.
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If a dropped soffit is used to house a duct, the soffit space must equal the duct diameter plus the insulation thickness

If a dropped soffit is used to house a duct, the soffit space must equal the duct diameter plus the insulation thickness
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If airflow must be limited to a supply register, use balancing dampers at the trunk line rather than looping duct to control airflow

If airflow must be limited to a supply register, use balancing dampers at the trunk line rather than looping duct to control airflow
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If an intermittent ventilation duct is connected to an air handler, the damper should be shut and the intake vent should not be covered when performing a duct leakage test; if the ventilation will be continuous, the intake should be covered and sealed.

If an intermittent ventilation duct is connected to an air handler, the damper should be shut and the intake vent should not be covered when performing a duct leakage test; if the ventilation will be continuous, the intake should be covered and sealed.
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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 HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation

If HVAC duct must be installed in an exterior wall, separate it from the exterior with at least R-6 of continuous rigid insulation
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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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If wall registers are desired, install HVAC ducts in interior wall cavities

If wall registers are desired, install HVAC ducts in interior wall cavities
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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