Furnace Tune-Up from Comfort Star (Up to 57% Off)

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Up to 57% Off

Customer Reviews

11 Ratings


Lamar L. · 3 reviews TOP REVIEWER
· Redeemed April 26, 2017
The technician was on time, courteous, and very friendly. He came in, was familiar with my furnace, and completed the work in a timely manner. Will definitely use you again with or without groupon. Thank you


Jared R. ·
· Redeemed December 8, 2016
Prompt, friendly, knowledgeable.


John M. · 1 reviews
· Redeemed November 18, 2016
The technician was very knowledgable and was able to explain the work being completed in languange that I understood. He was on time and had everything needed to complete the job.

What You'll Get

The Deal

  • $39 for a furnace tune-up ($89.99 value)

Forced-Air Furnaces: Let There Be Heat

The winter months would be nigh unbearable without central heating. Read on to learn how forced-air furnaces keep things toasty.

There’s nothing quite as awful as being able to see your breath on a cold winter’s night from your own living-room couch. Unfortunately, heating systems have been known to break down, often when the thermometer reaches its lowest depths. Although mechanics train for years to be able to fix faulty furnaces, the forced-air system itself is relatively straightforward, consisting of only four main parts: the thermostat, the burner, the heat exchanger, and the blower.

Once the thermostat senses that the air temperature has dropped below a set number (say, 72 degrees Fahrenheit), it sends an electrical signal to the burner. Attached to the burner is the gas valve, which controls the flow of fuel, and the igniter, which sets the fuel ablaze safely within the metal confines of the burner. Next to the burner is the heat exchanger, a piece of metal that warms quickly over the flames of the burner. The blower sends cold air whooshing over the exchanger, quickly raising the air’s temperature as it enters the duct system to warm the house and swiftly melt any snowballs trapped in the vents.

Bonus Points

  • Each room typically has two vents—one for the hot air and one to carry the colder air back to the furnace, where the cycle repeats.
  • As soon as the desired temperature is reached, the thermostat shuts off the burner to conserve energy.

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Appointment required. Valid only within 30 miles of zip code 53209. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Limit 1 per household. Taxes are not included. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Comfort Star

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.