Black Knight Energy does not sell tractors, lawn mowers or grass seed! We sell heat, service heat and install heat. Our customers are our warmest friends.

As a HVAC company we have worked on all brands and makes of heating equipment. In the early 1990s, calls started coming in to install, service and repair outside furnaces. Installing and repairing these furnaces helped us to learn what we wanted for a furnace product of our own.

Research of these furnaces took us to Central Boiler in 1995. Further research was done and money was saved until 1998 when we purchased and installed the model CL-40 in my 137 year old farmhouse. Then in the winter of 1999 the furnace was up and running. Wood consumption went down from the wood-coal furnace we were using. Temperature control was even throughout the home using the primary-secondary piping method designed by us. Domestic hot water was heated 100%. The furnace was fired up once a day throughout the coldest weather and once every two or three days during warmer times.  Ash removal was required twice that year due to complete combustion of wood down to a fine dust and/or powder.

To date my Central Boiler has saved me over $70,000 dollars in oil heating costs. My $11,000 dollar investment in 1999 to install an outdoor furnace has paid for itself many times over. Being toasty warm 24-7 through out winter…priceless!  -Robert Purvis.

For more information on Central Boiler go to CentralBoiler.com