perftest_asyncCSS: 0 NRBTHS Home heating systems that aren't properly maintained may be less than 50 percent efficient. Learn more about the importance of periodic furnace maintenance. critical styles end critical styles StartFragment How it Works critical styles end critical styles StartFragmentWhen a home system's thermostat is turned up, an electrical signal is sent to the heating equipment, where a valve or relay-switch starts the fuel-burning process. When the furnace

Did you know that most people spend more than 90% of their time indoors and that indoor air is often 10 times and sometimes even up to 100 times more polluted than outdoor air? Take control of your indoor air quality (IAQ) now by reducing pollutants that can contribute to headache, fatigue, lung irritation and foul odors. Help fight mold, germs, volatile organic compounds, odors and reduce airborne particles by choosing one of RGF’s Air Purification Systems that best fits you

Tips on how to get the best efficiency on your home humidifier.

When selecting and installing a geothermal heat pump, consider the heating and cooling efficiency, the economics of the system, and your site's characteristics. Be sure to find a qualified installer. Heating and Cooling Efficiency of Geothermal Heat Pumps The heating efficiency of ground-source and water-source heat pumps is indicated by their coefficient of performance (COP), which is the ratio of heat provided in Btu per Btu of energy input. Their cooling efficiency is indi