Refrigerant recovery machines are to contractors what HVAC systems are to homeowners. Heating and cooling systems are usually the most expensive pieces of equipment in a house, and they need regular ...

Refrigerant recovery is a necessary part of most air conditioning service calls. The increased use of high pressure refrigerants has created new challenges for technicians, yet it is still possible to ...

A while back, I addressed the energy savings potentials behind a drain waste heat recovery heat exchanger. It has the potential of reducing energy consumption of residential applications by as much as ...