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Presentation:

Building Science Education 4.2: COP, SEER, and EER's

COP, SEER, and EER's
Presentation:

Building Science Education 4.5: Sample Load Calculations

Sample Load Calculations
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Burried and encapsulated ducts in a ceiling plane

Burried and encapsulated ducts in a ceiling plane
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By plotting the heating capacities at -4°F and 5°F and drawing a line between them, the capacity at 0°F can be estimated

By plotting the heating capacities at -4°F and 5°F and drawing a line between them, the capacity at 0°F can be estimated
Case Study:

Case Study: Rural Development, Inc., Wisdom Way Solar Village, Greenfield, MA

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Cavity used for return is not insulated and is not air sealed, which will pull in air from outside

Cavity used for return is not insulated and is not air sealed, which will pull in air from outside
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Cavity was not air sealed

Cavity was not air sealed
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Central-fan-integrated supply ventilation with exhaust fans for intermittently balanced whole-house ventilation

Central-fan-integrated supply ventilation with exhaust fans for intermittently balanced whole-house ventilation
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Chase framing is completed and ready for drywall

Chase framing is completed and ready for drywall
Presentation:

Checking Your Work: Properly Installed HVAC in High-Performance Homes

Presentation:

Checking Your Work: Properly Installed HVAC in High-Performance Homes

Case Study:

Chesapeake Habitat for Humanity: Affordable Housing Case Study

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Clothes dryers vented directly to outdoors, except for ventless dryers equipped with a condensate drain

Clothes dryers vented directly to outdoors, except for ventless dryers equipped with a condensate drain
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Collars that are specifically made for flexible duct have a raised bead to prevent the duct from slipping off

Collars that are specifically made for flexible duct have a raised bead to prevent the duct from slipping off
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Common exhaust duct not shared by fans in separate dwellings

Common exhaust duct not shared by fans in separate dwellings
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Concept behind an evaporative cooler – warm air is cooled as the air passes through a wet medium and gives up some of its heat to evaporate the water

Concept behind an evaporative cooler – warm air is cooled as the air passes through a wet medium and gives up some of its heat to evaporate the water
Case Study:

Concord Cape Prototype

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Condensate from this heat pump water heater is routed to a nearby floor drain, shared with the condensate lines from a condensing gas furnace and an air conditioning coil

Condensate from this heat pump water heater is routed to a nearby floor drain, shared with the condensate lines from a condensing gas furnace and an air conditioning coil
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Connect the plastic application tunnel from the injection equipment to the supply plenum.

Connect the plastic application tunnel from the injection equipment to the supply plenum.
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Connect the plastic application tunnel to the injection equipment

Connect the plastic application tunnel to the injection equipment
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Connection in place but not sealed

Connection in place but not sealed
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Continuous supply and exhaust fans rated ≤ 1 sone by manufacturer

Continuous supply and exhaust fans rated ≤ 1 sone by manufacturer
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Continuously-operating ventilation & exhaust fans include readily accessible override controls

Continuously-operating ventilation & exhaust fans include readily accessible override controls
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Contractors will inspect the home and test HVAC equipment for safety concerns before air sealing begins.

Contractors will inspect the home and test HVAC equipment for safety concerns before air sealing begins.