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Fan CFM rating is higher than the requirement increasing the likelihood that it will meet the performance level once installed

Fan CFM rating is higher than the requirement increasing the likelihood that it will meet the performance level once installed
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Fan shares exhaust and does not have dack-draft damper installed

Fan shares exhaust and does not have dack-draft damper installed
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Fan shares exhaust and has a back-draft damper installed

Fan shares exhaust and has a back-draft damper installed
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Fans from seperate dwellings exhausted together without back-draft dampers and not sealed

Fans from seperate dwellings exhausted together without back-draft dampers and not sealed
Video:

Flood-hardy, drainable, dryable wall

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Floor cavity air pressure is measured by placing a tube into the floor cavity through a small drilled hole

Floor cavity air pressure is measured by placing a tube into the floor cavity through a small drilled hole
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Floor cavity pressure is measured by inserting a tube into the floor cavity using an extension pole

Floor cavity pressure is measured by inserting a tube into the floor cavity using an extension pole
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Foam holes in open-web floor trusses to completely seal the rim joist

Foam holes in open-web floor trusses to completely seal the rim joist
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Framing is sequenced to install an air barrier of OSB, plywood, or rigid foam between the porch and the attic.

Framing is sequenced to install an air barrier of OSB, plywood, or rigid foam between the porch and the attic.
CAD File:

Front view of horizontal air handler showing condensate drain pans and drain lines

Preview Image
Front view of horizontal air handler showing condensate drain pans and drain lines
CAD File:

Front view of horizontal air handler showing outdoor air intake, dampers, supply and return, and condensate drain pans, drain pipe and trap, and drain overflow safety cut off switch

Preview Image
Front view of horizontal air handler showing outdoor air intake, dampers, supply and return, and condensate drain pans, drain pipe and trap, and drain overflow safety cut off switch
CAD File:

Front view of horizontal air handler showing outdoor air intake, dampers, supply and return, emergency drain pan, and drain overflow safety cut off switch

Preview Image
Front view of horizontal air handler showing outdoor air intake, dampers, supply and return, emergency drain pan, and drain overflow safety cut off switch
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Fuel tank is elevated above flood waters and anchored to supporting frame

Fuel tank is elevated above flood waters and anchored to supporting frame
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Fuel tank is elevated above flood waters on a base of structural fill and anchored to the concrete pad

Fuel tank is elevated above flood waters on a base of structural fill and anchored to the concrete pad
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Fully Sealed Continuous Weather Resistance Barrier (1)

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Fully Sealed Continuous Weather Resistance Barrier (3)

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Furnaces, boilers, and water heaters located within the home’s pressure boundary are mechanically drafted or direct-vented

Furnaces, boilers, and water heaters located within the home’s pressure boundary are mechanically drafted or direct-vented
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Furred-out siding

Furred-out siding
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Garage Exhaust Fans

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Glasswood Commercial Passive House Retrofit: Air Barrier

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Ground Source Heat Pumps in Alaska: Harvesting Heat from a Cold Ground

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Heat Pump Water Heaters (1)

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High-Efficiency Gas Furnace

High-Efficiency Gas Furnace
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Horizontal furring strips are installed over a taped smart membrane that serves as an air and vapor barrier and holds in insulation; the furring strips will provide a nailing surface for tongue-and-groove wood porch ceiling cladding.

Horizontal furring strips are installed over a taped smart membrane that serves as an air and vapor barrier and holds in insulation; the furring strips will provide a nailing surface for tongue-and-groove wood porch ceiling cladding.