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What Is a Furnace?

A furnace is a type of forced air central heating system that heats the air in your home. This process involves a few steps in order to regulate the temperature and keep your home comfortable. Here’s how a furnace works:

  1. The heating cycle begins as soon as the thermostat determines that the temperature in the room is below whatever temperature you’ve set on the thermostat.
  2. Once this occurs, your furnace will start the inducer fan, which will pull enough air into the unit to establish combustion airflow.
  3. After proper airflow is established, the gas valve opens to permit gas to flow through the burners where it is ignited by either a spark of the heat from the igniter. (In older models, there is a “standing pilot” which is a small flame that burns constantly to light the gas.)
  4. Once the flame is lit, the spark or igniter is extinguished, and the gas will burn for approximately two minutes before the blower starts. This allows the heat exchanger to warm up so no cold air is distributed throughout the house.
  5. The air is drawn in through the return ducts and the blower pushes the air over the heat exchanger, warming the air.
  6. The warmed air is pushed by the blower into the supply ducts to be redistributed back into your home. This process is often repeated numerous times before the desired temperature is reached.

If you have any questions about how a furnace works, or you’re experiencing problems with your system and require furnace repair in Middlesex, Monmouth or Ocean County, NJ, contact Arctic Air Conditioning today!

5 Rating |

”Sal came out to service our new on demand water heater/ furnace and worked tirelessly from 2:00 in the afternoon till well after 8 pm at night to make sure…”

- Heidi Hoover
5 Rating |

”Exceptional sales and installation experience. The salesman Ron was honest, transparent and knew his product cold (no pun intended). We cancelled calls with other vendors for their quotes within 10…”

- Marlon Mattis
5 Rating |

”Great fast service. Thank you guys for emergency visit. Called at 8 pm, everything back up at 9pm.”

- Yan Vayner
5 Rating |

”They answered the call very quickly. The technician diagnosed and fixed the problem quickly. The technicians were very polite and tidy.”

- Anne Duffy
5 Rating |

”Arctic Air came to the rescue when another local vendor, Artem HVAC, did not show up for their scheduled appointment after waiting all day. Finally at 7pm , after not…”

- Melany Freedman
5 Rating |

”quick service, helpful, problem repaired on first day, other advice given in regards to my system outside of what i called them for. would use agin”

- Josh Bucher
5 Rating |

”On time ! Very thorough , great job. Artic air always comes through”

- Rick Bachmann
5 Rating |

”I almost never write reviews for any trades that do work in my home because I've found that most I use are usually satisfactory and get the job done. I've…”

- Alan Schwartz
5 Rating |

”Thank you for excellent customer service and extreme professionalism. Alex Gallo was so informative and friendly and the guys that came to do the job were great and very clean…”

- Mia Robertson
5 Rating |

”Fantastic company. I would highly recommend!”

- James Blosser
5 Rating |

”FINALLY! I found a company that's honest, reliable & has well trained employees who explain everything in detail.. Impressed with the whole company from the sales men who come to…”

- Beverly Gearhart
5 Rating |

”Always reliable, work quickly, and reasonably priced.”

- Joseph Felicetti
5 Rating |

”We had a problem with our heat. They responded fast over the phone and within an hour they were at the house. Turned out to be a faulty flame sensor.…”

- Mike Green
5 Rating |

”Dan was exceptionally polite and professional. I would use arctic air again in a heartbeat. Particularly Dan. Very very happy!”

- Travis Fascia
5 Rating |

”Jesse did an excellent job and was knowledgeable in the furnace tune up process. I would recommend Arctic Air always. Thank you.”

- Vernon Fernandes
5 Rating |

”Jesse did a great job for us. Showed us that our humidifier had not been working for the past 4 1/2 years since we moved into our house. We hope…”

- Michael Klass
5 Rating |

”Got same day service for issue with my furnace. Michael C. was professional, friendly, courteous and wore protective shoe covers, so nothing from the outside was tracked inside. He explained…”

- Teri Somoza
5 Rating |

”Shout out to Frank of Arctic Air for answering my frantic calls last night and walking me thru process to stop water from leaking furnace pump and huge thank for…”

- Diane Diaz Carbone
5 Rating |

”It was my first time using Artic Air and have to say they were great! My furnace shut down on one of the coldest night of the year and they…”

- Lauren Johnson-Passanesi
5 Rating |

”We have been customers for decades and always find Arctic Air to be competent and reliable. Robert, the technician on our recent call, was prompt, professional, knowledgeable, and courteous!”

- Deborah Ross
5 Rating |

”They have always dispatched knowledgeable and courteous repairmen. I dealt with another company that whenever they came to my home (for routine maintenance) would try to sell me a new…”

- adele miller
5 Rating |

”Very nice Professional timely and knowledgeable Got an appt quickly Would use again”

- Jennifer Bracco Ring
5 Rating |

”Arctic air responded to our problem immediately and professionally. We had a 6 year old Trane HVAC system with a heat pump that stopped working. Their technician came out and…”

- Jeff Bouquio
5 Rating |

”Loved Michael C’s Service! He’s patient, kind, reassuring, prompt and knowledgeable!”

- Amanda Sura Isaacson
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