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GREEN Topic: House as a System


Technology Snapshot & Benefits:
When building new energy-efficient houses or making existing houses more efficient significant energy gains can be realized, just by treating the “House as a System”. You cannot make changes to one part of a house without affecting the many other parts that make up the house system. The house system is made up of the building envelope (foundation, walls, ceiling), the heating and cooling system, the water heating system, the lighting system, the appliances, and a fireplace if present.

Estimated Cost Savings:
Making the home as tight as possible has an incredible impact on your heating and cooling bills.

Tight homes need sealed-combustion furnaces and water heaters or outside air for combustion in wood-burning fireplaces. Common mistakes include putting non-sealed combustion furnaces and water heaters or wood-burning fireplaces in tight energy-efficient homes. With a tight house, something as simple as turning on your dryer or a down-vented range can pull the ashes and combustion by-products right out of the fireplace or down the chimney of the furnace or water heater and back into the house.

Increasing the insulation in a wall or attic without sealing the air leaks from the inside into that space can lead to mold and rotting problems.

Proper roof insulation is important to prevent ice damming on roofs.

Regional Issues:
In cold climates, sealing penetrations on the inside into walls and attics is important in keeping the moist inside air from getting into the cold spaces and condensing. In warm climates, it works the other way around. You need to keep warm moist outside air from reaching the back of the drywall that can be colder due to air conditioning.

Sealed combustion appliances are a must for any climate region.

Installation (Getting It Done):
With a new house, you want to build it as tight as possible. Install sealed combustion gas appliances and a controlled ventilation system.

Source: EcoBroker.com


Nia Knowles

Realtor, Community Advocate, Mother, Leader, Innovative Thinker, Idea Generator,

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