Selecting and Sizing a Envirogreen "Home Solar Energy" Heating System
Selecting the appropriate "home solar energy" system depends on factors such as the site, design, and heating needs of your house. Local covenants may restrict your options; for example homeowner associations may not allow you to install "home solar energy" collectors on certain parts of your house (although many homeowners have been successful in challenging such covenants).
The local climate, the type and efficiency of the "solar power cells", and the collector area determine how much heat a "home solar energy" heating system can provide. It is usually most economical to design an active envirogreen "home solar energy" system to provide 40%–80% of the home's heating needs. Systems providing less than 40% of the heat needed for a home are rarely cost-effective except when using solar air heater collectors that heat one or two rooms and require no heat storage. A well-designed and insulated home that incorporates a "home solar energy" system by way of a passive solar heating techniques will require a smaller and less costly heating system of any type, and may need very little supplemental heat other than "home solar energy" systam.
Besides the fact that designing an active envirogreen "home solar energy" system to supply enough heat 100% of the time is generally not practical or cost effective, most building codes and mortgage lenders require a back-up heating system. Supplementary or back-up systems supply heat when the "home solar energy" system can not meet heating requirements. They can range from a wood stove to a conventional central heating system.
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