SJ Kowalski Inc Carries High-Efficiency HVAC Products

Your Greater Hazle Township Expert Since 1972

Mitsubishi High-Efficiency & Hyper Heating
Ductless Mini-Split Heat Pumps

It’s Hard To Stop A Trane®

  • HIgh Efficiency and Top Quality
  • Furnaces, Central AC and Boilers
  • American Made

Central Heating and AC

  • High Efficiency and Top Quality
  • Furnaces, Central AC and Boilers

Geothermal Heating & Cooling

  • The Most Cost Efficient HVAC
  • Heating, Cooling, Domestic Hot Water
  • American Made

Navien

  • Tankless Water Heaters
  • Wall Hung Boilers

Rinnai Energy Products

  • On Demand Tankless Water Heaters
  • Condensing Wall-Hung Boilers
  • Direct Wall Heaters, Air Handlers

Indirect Water Heaters and Boilers

  • Stainless Steel Construction
  • American Made

Buderus Hydronic

  • Gas and Oil Boilers
  • Hydronic Accessories