Is there a difference between a commercial and residential furnace?

The weatherman had just reported that the next few weeks we would be braving a brutal winter.

There would be rainstorms and harsh chilly winds with snowstorms.

That evening after the announcement, I noticed smoke coming from the furnace in my basement. I had not been around in the Fall to schedule an HVAC tune-up of the system and so I did not get to service the system. I made a point to contact an HVAC technician the following morning. At about early that evening, the ductless HVAC stopped working, so I had to get my space heater to help with indoor comfort throughout the night. The following morning, I contacted the HVAC company requesting them to send a professional to sort the issue with my system. After examining the unit, the professional established that the unit could not be salvaged, he advised that I get a new HVAC system. I inquired about some of the appropriate systems I would need for my residence and after gathering information, I set out to the heat and AC product dealer. After going through several shops, I came to one commercial HVAC provider where I got a commercial system because they were running a commercial HVAC for sale promotion. I contacted the serviceman to come to do the installation and upgrade the dial thermostat. I was shocked and disappointed in myself when the professional from the home comfort business advised that I had gotten the wrong system. I got a commercial system instead of a residential one, no wonder it was huge. Apparently, they are not similar, one is designed to serve a large space and number of people. Fortunately, the dealer was willing to exchange for residential quality HVAC equipment. The new system was installed plus a new digital thermostat. I got lucky!

Heating technician