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FreeWatt

FreeWatt is a joint venture of ECR International and Yankee Scientific. FreeWatt is a manufacturer of combined heat and power systems for residential facilities. It is an energy company dedicated to providing green alternatives for traditional heating and cooling sources. Its primary system is a micro-combined heat and power system (MCHP), now known as the freewatt.

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  • Combined Heat & Power

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Get a custom solar estimate for your home

Get a custom solar estimate for your home

Based on your roof and actual offers in your area

Try Solar Calculator

FreeWatt Headquarters

93 West Street
Medfield, MA
02052 US