I have been involved with the mechanical services profession for 58 years. The main thrust of my experience has been HVAC&R (Heating, Ventilation, Air Conditioning and Refrigeration), Piped Services and associated Electrical Services. This experience has been gained on mining sites, processing / materials handling sites, transport vehicles, on marine refrigeration applications, workshops, hangars, and airport control towers, on food processing applications and in building services (offices, schools, universities, airports, museums, hospitals, medical centres, restaurants, correctional service centres, data centres, etc.). This involvement includes installation, commissioning, maintenance, drafting, design, supervision, administration and management. I have also been a reviewer on two AIRAH Design Aids.