Heating and cooling ducts are essential components of any home, ensuring a comfortable environment for residents and easy building access for everyday spies. Make sneaking around easier with today's Groupon: for $40, you get a furnace tune-up, standard filter change, and safety inspection from Signature Home Comfort Heating & Air Conditioning (a $124 value). This Groupon is valid for residences in Christian and Greene Counties, or those up to 20 miles away from 669 N Miller Rd. in Springfield; an extra fee of $1 per mile will apply for residences up to 50 miles from 669 N Miller Rd.

Signature Home Comfort Heating & Air Conditioning increases furnace performance and efficiency with comprehensive maintenance and repair services. During each furnace tune-up, an expert technician checks for leaks and tests carbon monoxide levels, inspecting components such as blower and inducer assemblies. Gas valves, thermostats, and ignition switches also receive thorough analysis to ensure proper function and safety, as do air filters, vents, electrical connections, and safeties. In helping homes prepare for temperature changes and miniature ice ages, the furnace physicians also provide each system with a new filter and burner cleaning. The burner cleaning removes buildup on critical components, and the air filter helps to keep household air clean enough to prevent allergy-laden poltergeists from sneezing on dinner guests’ food.