WHAT EXACTLY IS A HIGH EFFICIENCY GAS FURNACE?
Not sure exactly what the big benefit is with a Ruud high efficiency gas furnace? By the time you read this paragraph you will understand. All furnaces made before the mid to late 1980’s were designed to heat with little or no efficiency. Most old furnaces were very basic, they had a heat exchanger, blower motor, gas valve, hi-limit control, and a relay to the thermostat. They would heat up and the 500 degree exhaust off the heat exchanger went straight out the roof thru the chimney. Little did most people know that out the chimney went close to 40% of the heat the furnace made. Most old furnaces are somewhere in the range of 60-65% efficient, meaning you are losing 35-40% of your heat. If you have an old furnace that is a lot of money you are wasting, especially with the increased rate for natural and propane gas. Now here’s how the Ruud high efficiency furnace works. The biggest thing is a high efficiency furnace has a secondary heat exchanger. This secondary heat exchanger captures
