Welcome to P.R. Douglas Co., Inc.

and Formal Oil Co., Inc.


We are a fully licensed and Insured for all Oil and Gas equipment service and installation.

 Service Area:
We service all of Greater Boston!














Gas Boiler Equipment Installs.  Click all images to

enlarge for more detail.

This is a Lochinvar™ high efficiency, modulating, condensing boiler that can achieve an AFUE rating of up to 98%!  This particular boiler is paired with a Super-Stor for hot water and has WILO™ circulator pumps.  This is overall one of the best combinations on the market today!

This is a Burnham™ gas boiler featuring the Super-Stor™ indirect fired water heater.  It is a direct vented boiler out the side of the house, opposed to venting into the chimney.

This is the Weil-McLain Ultra™ boiler specially engineered to supply hot water for a condominium complex in Waltham.  This boiler has 98% efficiency rating.  It is vented in PVC pipe and is available only for forced hotwater heating systems.