Showing results 101 - 150 of 281
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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.
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Install all layers of the drainage plane to overlap, not underlap, to direct bulk water down and out of the wall.
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Install bottom layer of rigid insulation
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Install supply registers in floors or ceilings to avoid routing ducts through exterior walls
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Install supports every 5 feet so that maximum allowable sag in flexible duct is no more than one-half inch per foot
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Install supports every 5 feet so that maximum allowable sag in flexible duct is no more than one-half inch per foot
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Install the filter media box between the return air plenum and the air handler box
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Insulating a crawlspace foundation with “cripple wall” in warm climates; in Climate Zones 5+ replace the foil- or plastic-faced fiberglass batt/roll insulation with impermeable rigid insulation or closed-cell spray polyurethane foam
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Insulating sheathing is extended up to the roof rafters and sealed around the framing with spray foam as part of this exterior wall retrofit
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Insulation was added to the walls and ceiling of this existing home from the inside as part of an extensive retrofit to avoid replacing original 1-inch shiplapped sheathing.
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Lay out duct so that no radius of a bend or turn is less than the diameter of the airway
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Leaks at the air filter cover panel can draw in unconditioned or undesirable air
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Ledger board, metal brackets, and vertical 2x4s have been installed in preparation for exterior spray foam in this retrofit exterior wall insulation technique
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Limited attic access can make inspections for missing air barriers and insulation challenging
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Locate the fresh air intake away from pollution sources and in an easily accessible location
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Most residential heat pumps are installed incorrectly and with energy-wasting faults.
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Open floor trusses used as return air plenums can draw air from any place connected to that floor
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Plan view (from above) showing how the existing garage wall gypsum board is cut away to air-seal the shared wall before adding rigid foam insulation on the garage and exterior walls of the home.
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Pulling flex duct taut when installing greatly reduces the amount of friction caused by the ducting
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Quality installation and commissioning are critical to optimizing heat pump performance.
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R-6 flexible duct has 2 inches of insulation around the inner liner so a 12-inch duct requires a 16x16-inch chase
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Remove the plastic wrap, but not the cardboard frame, before installing the furnace/air handler filter in the filter slot or above the return grate; note, the metal wire over the filter fabric can be very sharp.
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Right - Aluminum accordion coverings are permanently installed and can be deployed quickly but must be manually closed from the outside.
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Right - Aluminum or polycarbonate panels attach to permanently mounted railings and require installation from the exterior.
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Right - Baffles are installed in attic to keep blown insulation from blocking soffit vents and ventilation path
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Right - Blown insulation in existing attic provides even coverage completely filling the attic space to a depth that covers the ceiling joists.
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Right - Closed-cell spray foam covers the ceiling and joists to insulate and air-seal the ceiling deck.