Waltham Air ConditioningHtgRefrig Equip Mfrs 45 1st Ave Tecogen Inc. operates in the distributed generation market and is a leading manufacturer of natural gas-fueled commercial cooling and heat-recovery systems. Tecogen has an installed base of more than 1,100 units, which it supports through an established network of engineering, sales, and service suport. Formerly a public subsidiary of Thermo Electron Corporation, the company is now privately held. Tecogen is based in Waltham, Massachusetts, with annual revenues of approximately $15 million. Waltham MA Air ConditioningHtgRefrig Equip Mfrs Tecogen Inc www.tecogen.com tecogen tecochill natural gas engine-driven chiller tecofrost chiller cogeneration inverde inv-100 cm-100 inverter microgrid standby power stand alone power green power water chiller cooling gas cooling gas chiller engine refriger tecogen tecochill natural gas engine-driven chiller tecofrost chiller cogeneration inverde inv-100 cm-100 inverter microgrid standby power stand alone power green power water chiller cooling gas cooling gas chiller engine refriger Business Reviews Tecogen Inc Testimonials