KNA just wrapped up a new heating and cooling installation for the 10,000 square foot administration building for a private school in Cambridge, Massachusetts. This new variable-refrigerant-flow-system (VRFS) replaced an old… read more →
What You Should Know about Refrigerants When Purchasing or Repairing a Residential A/C System or Heat Pump Background: Ban on Production and Imports of Ozone-Depleting Refrigerants In 1987 the Montreal Protocol,… read more →