Grays Heating Oil offers heating oil and propane equipment installations to existing and new heating oil and propane customers throughout Knox County Maine.

We offer free site and system evaluations/estimates which allow us to evaluate the customer's current heating systems, future needs, and advanced system technology in heating equipment. From there we can match the customer's individual heating needs with their best options, estimated annual savings, estimated payback period and the price of installation.

Grays Heating Oil installs quality heating equipment by brands that are tested and proven by time and technology integration. Our skilled install technicians are continually attending educational classes to stay abreast on all modern advancements in heat equipment technology.


Grays Heating Oil Provides Boiler Installations by reliable manufacturers such as:

• Energy Kinetics System 2000
• Buderus
• Viessmann
• Biasi
• New Yorker
• Rinnai
• Bosch
• NTI