fabricates simple fiberglass and sheet metal ducts and transitions, installs sheet metal and fiberglass components, hangs registers and grilles, stocks parts, installs refrigeration line sets including soldering and brazing, installs power and control wiring, assists Installation Technicians and Senior Installation Technicians. measures and threads piping, uses basic test equipment, assists in start-up/charge/test/balance, performs home rough-ins, installs residential units (gas, oil, electric furnaces, air conditioners, and heat pumps).