HVAC Resource Hub — D's Air & Heating, Inc. Chicago

Fall Furnace Prep

Replace filters, test your thermostat, and schedule a furnace tune-up before the first cold snap hits Chicago.

Winter Boiler Checklist

Check system pressure, bleed radiators, and verify zone valves are operating before temperatures drop below freezing.

Spring AC Tune-Up

Clean condenser coils, check refrigerant levels, and test cooling performance before summer heat arrives.

Summer Cooling Efficiency Tips

Change filters, clear the condenser, set smart thermostat schedules, seal air leaks, and close blinds during peak sun hours to stay cool and save energy.

Hydronic heating uses water to distribute heat through radiators or in-floor tubing — quieter, more even, and often more efficient than forced-air systems.

If your system is over 15 years old and repair costs exceed 50% of replacement cost, replacement is usually the better investment. Ask DsAir for a free assessment.

SEER2 is the updated efficiency standard for ACs and heat pumps. Higher SEER2 means lower energy bills, better humidity control, and more precise temperature regulation. 13–17 SEER2 is standard; 17–18 is high-efficiency; 20+ SEER2 is premium variable-capacity. Lennox's SL28XCV reaches up to 28 SEER2.

Match system size to your home's square footage, insulation, and duct layout. DsAir performs Manual J load calculations to ensure proper sizing every time.