"Ask Adam" Adam has been in the HVAC industry for over 40 years. He has been involved in all aspects of the business trom service to sales. His main interest is in customer comfort. Why Do Today's Furnaces Have Two Motors? Adam Kern, Owner Official Heating & Cooling Back in the 50's and through the early 80's, furnace manu- facturers had to build furnaces for three types of applications: upflow, downflow and horizontal. Needless to say, this created a nightmare for warehousing. As the demand for higher efficiency increased, manufacturers responded with an 80% multi position furnace. Now one furnace could be used for upflow, downflow and horizontal applications. Due to the design changes, these new furnaces required a second motor to safely vent the combustion gases into the chimney. This new motor is called an inducer. This design change increased the efficiency, simplified the manufacturing process and minimized the need for warehousing multiple furnaces. Another benefit derived from the inducer was the use of a 4" flue pipe instead of a 5" or 6" pipe. With the introduction of the 90% efficient furnaces we can sidewall vent them which means that in new construction we no longer need a chimney. If you have any HVAC questions, call 800-350-HVAC (4822) or email adam@officialhvac.com Bela says: Before you find yoursetf neck deep in trouble! PLAN AHEAD Call Official todayt Be prepared for wetweather ahead with a SALEE WFi alert Leak Detector with audible alarm and battery back up sump pump! OFFICIAL Heating & Cooling 800-350-HVAC (4822) officialhvac.com EACTORY AUTHORIZED DEALER NATE 4 Time Carrier BBB Honoree Tumto the eperts "Ask Adam" Adam has been in the HVAC industry for over 40 years. He has been involved in all aspects of the business trom service to sales. His main interest is in customer comfort. Why Do Today's Furnaces Have Two Motors? Adam Kern, Owner Official Heating & Cooling Back in the 50's and through the early 80's, furnace manu- facturers had to build furnaces for three types of applications: upflow, downflow and horizontal. Needless to say, this created a nightmare for warehousing. As the demand for higher efficiency increased, manufacturers responded with an 80% multi position furnace. Now one furnace could be used for upflow, downflow and horizontal applications. Due to the design changes, these new furnaces required a second motor to safely vent the combustion gases into the chimney. This new motor is called an inducer. This design change increased the efficiency, simplified the manufacturing process and minimized the need for warehousing multiple furnaces. Another benefit derived from the inducer was the use of a 4" flue pipe instead of a 5" or 6" pipe. With the introduction of the 90% efficient furnaces we can sidewall vent them which means that in new construction we no longer need a chimney. If you have any HVAC questions, call 800-350-HVAC (4822) or email adam@officialhvac.com Bela says: Before you find yoursetf neck deep in trouble! PLAN AHEAD Call Official todayt Be prepared for wetweather ahead with a SALEE WFi alert Leak Detector with audible alarm and battery back up sump pump! OFFICIAL Heating & Cooling 800-350-HVAC (4822) officialhvac.com EACTORY AUTHORIZED DEALER NATE 4 Time Carrier BBB Honoree Tumto the eperts