FAQ

Frequently Asked Questions

For all additional inquiries, please contact Karsten Heating & Cooling at (262) 728-3658.

  • 1. WHAT DOES AFUE MEAN?

    A: Annual fuel utilization efficiency is the season-long average efficiency of a piece of heating equipment.

  • 2. WHAT DOES SEER MEAN?

    A: Seasonal energy efficiency ratio is the comparative method used to judge how efficiently an air conditioning unit performs. The higher the SEER value, the more efficient the unit. A state requirement in 2006 states all units must have a minimum SEER of 13.

  • 3. DO YOU CARRY LIABILITY COVERAGE?

    A: Rockford Mutual Insurance fully insures us for Workman's Comp. & Liability.

  • 4. SHOULD I HAVE MY HEATING AND COOLING UNITS SERVICED YEARLY?

    A: Yes. Preventative maintenance is essential. Units will operate much more efficiently when properly serviced.

  • 5. HOW LONG HAS KARSTEN HEATING & COOLING BEEN IN BUSINESS?

    A: Karsten Heating & Cooling was established in 1961 by Samuel Karsten, Jeff's father. Jeff has been involved in the business for over 40 years.

  • 6. WHAT IS THE MOST ECONOMICAL HEATING SOURCE?

    A: New gas furnaces have AFUE ratings of 80-95%. The higher the AFUE, the more efficient the unit.



  • 7. DO YOU INSTALL HOT WATER HEATING SYSTEMS?

    A: Triangle Tube and Burnham Boilers. We find these units to be the most reliable.

  • 8. DO YOU INSTALL HUMIDIFIERS?

    A: We install Aprilaire and service most brands.

  • 9. DO YOU SERVICE ANY OTHER BRANDS?

    A: We service many brands of furnaces, boilers, and air conditioning units.

  • 10. DO YOU INSTALL AIR PURIFIERS?

    A: Yes, we install Honeywell air purifiers.

  • 11. IS R-22 COOLANT STILL AVAILABLE?

    A: R-22 refrigerant is still available, but it may become unattainable in the future. R-410A is environmentally safe for our ozone layer.

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