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CAD File:

Insulated floor above garage - cavity insulation with 1 inch rigid insulation with 2x2 wood furring

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Insulated floor above garage - cavity insulation with 1 inch rigid insulation with 2x2 wood furring
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Insulating both exterior and garage-side faces of plaza deck can reduce thermal bridging. If garage is heated or partially heated, hybrid spray foam/batt insulation on garage side of plaza deck should extend to the perimeter of the garage.

Insulating both exterior and garage-side faces of plaza deck can reduce thermal bridging. If garage is heated or partially heated, hybrid spray foam/batt insulation on garage side of plaza deck should extend to the perimeter of the garage.
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Insulating the exterior and garage-side faces of the garage plaza deck can reduce thermal bridging. If the garage is heated or partially heated, the spray foam on the garage side of the plaza deck should extend to perimeter of garage.

Insulating the exterior and garage-side faces of the garage plaza deck can reduce thermal bridging. If the garage is heated or partially heated, the spray foam on the garage side of the plaza deck should extend to perimeter of garage.
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Insulating the exterior and garage-side faces of the plaza deck can reduce thermal bridging. If the garage is heated or partially heated, the faced batt insulation on the garage side of the plaza deck should extend to perimeter of garage.

Insulating the exterior and garage-side faces of the plaza deck can reduce thermal bridging. If the garage is heated or partially heated, the faced batt insulation on the garage side of the plaza deck should extend to perimeter of garage.
Video:

Insulation Installation Guide: Air Sealing Garage

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Insulation support

Insulation support
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Iris damper style airflow stations come in different sizes and can be adjusted to control airflow

Iris damper style airflow stations come in different sizes and can be adjusted to control airflow
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It is not recommended to install HVAC systems in enclosed attached garages. However, when HVAC systems are installed in enclosed garages, they must comply with ASHRAE 62.2 duct leakage thresholds.

It is not recommended to install HVAC systems in enclosed attached garages. However, when HVAC systems are installed in enclosed garages, they must comply with ASHRAE 62.2 duct leakage thresholds.
Video:

Karuna Passive House Air-To-Water Heat Pump

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Karuna Passive House HRV Supply Register

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Karuna Passive House Ventilation System

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Lower-cost local ERVs are usually installed in a ceiling to supply outdoor air to and exhaust air from the room in which they are located

Lower-cost local ERVs are usually installed in a ceiling to supply outdoor air to and exhaust air from the room in which they are located
Video:

Madrona Passive House | CO2 Fired Heat Pump

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Measure the thickness of the space on the back of the garage door area where you will install the rigid foam insulation.

Measure the thickness of the space on the back of the garage door area where you will install the rigid foam insulation.
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Mechanical exhaust is not required in this shared parking garage in a multistory multifamily building because the garage is not enclosed and can rely on natural air changes to reduce airborne contaminant concentration.

Mechanical exhaust is not required in this shared parking garage in a multistory multifamily building because the garage is not enclosed and can rely on natural air changes to reduce airborne contaminant concentration.
Case Study:

Mercedes Homes: Hot, Humid Climate Region 40+% Energy Savings

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Metal drain pans under HVAC equipment can corrode over time, especially in humid environments

Metal drain pans under HVAC equipment can corrode over time, especially in humid environments
Video:

Mini-Split (Ductless) Heat Pumps (1)

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Mini-Split (Ductless) Heat Pumps (2)

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Misaligned floor insulation

Misaligned floor insulation
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Move the dryer to access the dryer exhaust vent

Move the dryer to access the dryer exhaust vent
Case Study:

Moving toward Zero Energy Homes: Zero Energy Home Powers Up in North Texas

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National Fuel Gas Code (NFPA 2012) identifies four categories for combustion furnaces and water heaters based on combustion type (sealed or unsealed) and vent pipe temperature

National Fuel Gas Code (NFPA 2012) identifies four categories for combustion furnaces and water heaters based on combustion type (sealed or unsealed) and vent pipe temperature
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National HVAC Design Report - Cooling Equipment Selection (Version 3 / 3.1 (Rev. 09))

National HVAC Design Report - Cooling Equipment Selection (Version 3 / 3.1 (Rev. 09))