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!














High Efficiency Venting Options

(Not all concentric kits comply with manufacturers requirements)

This particular concentric venting kit is a "rocket type". It is a pipe within a pipe, which allow the gas appliance to get rid of exhaust and receive fresh air through this one penetration piece.

This concentric kit is two penetrations through the wall of the building, but it receives intake air from the inner ring and exhausts through the round p.v.c. pipe.

This kit is similar to the "rocket type", it just has a difference in color and appearance.

This is the traditional venting method for a high efficiency unit.  The intake and exhaust are run out the side of the building and p.v.c. fittings glued on the end.

(fittings vary upon manufacturers specs)