Residential Solar Heating Retrofits

Residential Solar Heating Retrofits

Adding (retrofitting) a solar space heating system to your home is one way to combat increasing energy costs and to raise your home's market value. The two major types of solar retrofits are active systems (requiring mechanical energy and hardware such as pumps and fans to distribute heat) and passive systems (which depend on the natural circulation of a fluid for heat movement).
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Sizing Residential Heating And Air Conditioning Systems

Sizing Residential Heating and Air Conditioning Systems

Older space conditioning systems (more than 10 years old) are often unreliable and much less efficient than a modern system. When it's time for a new replacement, choosing one of the correct size (heating and/or cooling output) is critical to getting the best efficiency, comfort, and lowest maintenance and operating costs over the life of the new system. Some national surveys have determined that well over half of all HVAC contractors do not size heating and cooling systems correctly.
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Heating Your Home With An Active Solar Energy System

Heating Your Home with an Active Solar Energy System

Active solar heating systems consist of collectors that collect and absorb solar radiation and electric fans or pumps to transfer and distribute the solar heat in a fluid (liquid or air) from the collectors. They may have a storage system to provide heat when the sun is not shining. An active system may be more flexible than a passive system in terms of siting and installation.
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Solar Heat Gain Control For Windows

Solar Heat Gain Control for Windows

Before innovations in glass, films, and coatings in the past decade, a typical residential window with one or two layers of glazing allowed roughly 75-85% of the solar energy to enter a building, which has a negative impact on summertime comfort and cooling bills, especially in hot climates.
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Vapor Diffusion Retarders And Air Barriers

Vapor Diffusion Retarders and Air Barriers

Vapor diffusion retarders, air retarders, and air/vapor retarders all relate to the interaction of temperature and moisture in and around the building envelope. A vapor barrier or vapor diffusion retarder (VDR) is a material that reduces the rate at which water vapor can move through a material.
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Loose-Fill Insulations

Loose-Fill Insulations

Whether you are increasing the insulation levels in your current home or selecting insulation for a new home, choosing the right insulation material can be challenging. Fibrous loose-fill insulations such as cellulose, fiberglass and rock wool are options you may wish to consider.
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