The Johnstone Supply Company is a wholesaler of heating, ventilation, air conditioning and refrigeration equipment. The company has equipment, parts and tools for a wide range of climate management systems, including boilers, hydronic systems, motors, testing instruments, and electrical and mechanical installation supplies.
HVAC systems available from Johnstone Supply range in size from small wall-mounted, single-room air handlers to large industrial HVAC systems, including mini-spit systems, room air conditioners, furnaces, packaged terminal air conditioners and heat pumps, and single-packaged 10-ton rooftop air conditioning units.
Boiler and hydronic equipment are available in single units or total home systems. Indirect storage tanks, water heaters, baseboard components, radiant heating systems and a large line of gauges, valves and regulators are available as well.
Johnstone supply has a full line of replacement motors available, including specific purpose, general purpose, refrigeration and inducer blowers. Hermetically sealed and semi-hermetic compressors for refrigeration systems are available as well as multiple lubricants and a complete line of refrigerants. Some testing equipment available includes carbon dioxide monitors, combustion analyzers, leak detectors, airflow measurement, and temperature and humidity measuring gear.
The company also operates the Johnstone University, which provides certified training programs at all Johnstone Supply stores for HVAC and refrigeration technicians. Some available courses include HVAC/R Theory and Application, safety courses and instruction on laws, regulations and standards for the Department of Transportation Hazardous Materials handling, the Occupational Safety and Health Administration guidelines and the Environmental Protection Agency's regulations.