Regulating the temperature in a home can be difficult, especially if your spouse is a snowman or the logical opposite of a snowman—a fireman. Warm their heart with this Groupon.

Choose Between Two Options

• $35 for a furnace or air-conditioner tune-up (a $98 value)
$45 for both a furnace and air-conditioner tune-up (a $159 value)

The technician cleans or replaces filters, checks and cleanses burners, and inspects blowers and their motors before degunking flame sensors and exhaust tubes. Then the tech tests carbon-monoxide levels, gas pressure, static pressure, igniters, and temperature.

Allred Heating, Cooling, Electric

In the heating-and-cooling industry, technicians who can confidently match HVAC systems to homeowners’ needs are the only ones who can claim North American Technician Excellence (NATE) certifications. The employees at Allred Heating, Cooling, Electric boast this honor, demonstrating their exhaustive knowledge of furnaces, heat pumps, hot-water tanks, and air conditioners as they install, fix, or maintain them. They strive to keep homes as comfortable and efficient as possible, installing only trustworthy brands—such as American Standard, Mitsubishi Electric, and Kohler—and performing 23-point precision tune-ups on furnaces, which include changing their filters, cleaning their exhaust tubes, and notarizing commission agreements with the dragons who work inside them.