Proper Design & Installation – ServiceMark Solutions


Why is proper design and installation so important?

Here are some FACTS about the importance of proper design installation of heating and air conditioning systems:*

Proper Equipment Sizing

  • Oversized equipment increases energy use by 9%
  • Oversized cooling equipment makes us feel cold and clammy
  • Oversized equipment has more frequent maintenance problems and shorter equipment life

Proper Airflow

  • Poor airflow produces a 10% increase in operating costs
  • Poor airflow results in shorter equipment life
  • Inadequate airflow results in poor comfort control
  • Inadequate airflow results in lower indoor air quality

Air Conditioner and Heat Pump Refrigerant Charge

  • About 40% of all systems have an improper refrigerant charge, which can cause breakdowns and decrease the life of cooling equipment.

Tight Ductwork

  • Leaks in the return ducts often bring in unfiltered and unconditioned air from attics, basements and crawl spaces
  • Studies show that existing homes typically lose 35% of the system’s cooling capacity from duct leakage and thermal losses due to poorly insulated ducts
  • Proper sealing and insulation will cut those losses in half


The combination of all of these facts would result in a system efficiency loss of approximately 40%.