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Right - An EPDM gasket is installed around an HRV duct installed in an exterior wall; 9 of 14.
Right - An EPDM gasket is installed around an HRV duct installed in an exterior wall; 9 of 14.
Right - An EPDM gasket is installed around an HRV duct installed in an exterior wall; 9 of 14.
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Spray foam insulates and air seals the underside of the attic roof and walls.
Spray foam insulates and air seals the underside of the attic roof and walls.
Spray foam insulates and air seals the underside of the attic roof and walls.
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Wrong: Open wall cavities in the un-air-sealed return plenum connect the plenum to attic spaces
Wrong: Open wall cavities in the un-air-sealed return plenum connect the plenum to attic spaces
Wrong: Open wall cavities in the un-air-sealed return plenum connect the plenum to attic spaces
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Wrong: open wall cavity connected to this return air plenum is allowing cellulose attic insulation to be pulled into the furnace
Wrong: open wall cavity connected to this return air plenum is allowing cellulose attic insulation to be pulled into the furnace
Wrong: open wall cavity connected to this return air plenum is allowing cellulose attic insulation to be pulled into the furnace
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Wrong: The return plenum is not air sealed to separate it from the wall cavities and it should not be used for storage
Wrong: The return plenum is not air sealed to separate it from the wall cavities and it should not be used for storage
Wrong: The return plenum is not air sealed to separate it from the wall cavities and it should not be used for storage
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Wrong: This return air plenum is not lined and air sealed
Wrong: This return air plenum is not lined and air sealed
Wrong: This return air plenum is not lined and air sealed
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Wrong: This wall cavity is open to the attic allowing unconditioned, attic air to enter the HVAC system, bypassing the filter, and degrading system life and performance
Wrong: This wall cavity is open to the attic allowing unconditioned, attic air to enter the HVAC system, bypassing the filter, and degrading system life and performance
Wrong: This wall cavity is open to the attic allowing unconditioned, attic air to enter the HVAC system, bypassing the filter, and degrading system life and performance
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