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A Word About Efficiency

Energy efficiency is another important aspect of HVAC system selection. By law, the HVAC industry must provide efficiency ratings for every system or device, based on the annual cost of operating that system or appliance. When choosing a new system or device, it is wise to pay special attention to these ratings.

While water heat may be more efficient for larger buildings, central forced air systems that provide both heating and cooling functions to a structure may be the best choice.

In areas where it is available, geothermal heating is the most efficient method. Geothermally heated water is utilized in a water HVAC system that transfers the heat throughout the structure.

In a central heating system, a zoned heating scheme utilizing multiple thermostats can maximize efficiency by lowering temperatures in different areas at times when they are not occupied. Programmable digital thermostats can perform this task with ease.