ckSmithSuperior's fleet of oil delivery trucks, propane delivery trucks and service vehicles



ckSmithSuperior uses Injection Blending to make precise Bioheat blends

Bioheat, the combination of biodiesel and standard home heating oil, is the safe, energy efficient, and clean future of home heating oil, when blended and delivered properly. Bioheat is part biodiesel, reused plant, cooking, vegetable or other discarded oils, and standard home heating oil in certain percentage blends, like 20% bio and 80% heating oil or B20. Currently ckSmithSuperior delivers a B40 blend, where the fuel you're getting to your home is 40% biodiesel and 60% home heating oil. The key to safe and reliable bioheat is through the blending process where bioheat is created. All home heating oil starts with 5% biodiesel, the remaining 35% is blended into the home heating oil through injection blending. Injection blending is where the biodiesel is injected right into the home heating oil, another blending process is called "splash" blending, where the desired amount of biodiesel is just added to a delivery truck, like adding cream to your coffee in the morning. Splash blending can create uneven levels of bioheat inside the delivery truck, where the top of the truck could be 20% bioheat and the bottom could be 80%. Injection blending allows for precise blending amount all controlled by a computer, below you can find a link to a video that showcases the exact injection blending system ckSmithSuperior uses. 


Bioheat Injection Video


ckSmithSuperior offers fuel delivery to residential and commercial customers across Central MA.

Home Heating Oil
Commercial Fuels


ckSmithSuperior service technicians are well trained and ready to help you stay comfortable year round.

Routine Service
Emergency Service
Our Service Area

ckSmithSuperior installs equipment from Weil-McLain, Lennox, Rinnai, and Viessmann


Financing Available on Equipment Installations! *

* Financing is available for credit approved customers only, some restrictions may apply, through a third party financial institution.

ckSmithSuperior Service Techs are ready to help install your heating and cooling equipment

cent did a great job. Explained what he would be doing and answered all my questions. Made sure I was satisfied before he left and cleaned up all his supplies. Thank you!

July 08, 2024  -  Mary Coats, Sutton MA

Dennis was very thorough and helpful and answered all my questions.

July 08, 2024  -  Kathleen Gallinger, Sterling MA

Tech was very pleasant and personable. She made several good suggestions about dealing with the Oil tank and furnace.

July 05, 2024  -  Maribeth & Philip Eugene, Lancaster MA

Tim called right back and then came right over. Diagnosed the problem very quickly and fixed it. Explained what was wrong and what follow-up work that we needed.

June 29, 2024  -  Dana Giampa, Millbury MA

Andrew was on time, extremely pleasant. He was also very knowledgeable answering all my questions and my concerns. I would definitely recommend Andrew and the techs at CK Smith Superior for all heating and cooling needs.

June 27, 2024  -  Kathy Valeri , North Oxford MA

Stanley was on time and was not concerned I had a crawl space. He crawled in without complaint and serviced the furnace. Highly recommend Ck Smith Superior!

June 27, 2024  -  Patricia Hanlon, Oxford MA

Ben sent a text to alert us that he was on the way. Once he arrived, he immediately began the task of doing the air conditioner maintenance. He was efficient and professional and answered any questions with much patience. We have been with ckSmithSuperior for nearly 25 years and are happy to recommend them for the high quality of service they provide.

June 26, 2024  -  Gerald Creiger, Sutton MA

Thank you for your service! We are a very satisfied customer!

June 26, 2024  -  Chris Gill, Berlin MA

Peter did a very thorough and comprehensive system check and maintenance. Pleasant personality and is very professional.

June 26, 2024  -  Richard Cain, Upton MA

Tech was friendly and took care to keep Doors closed so that the cats could not get out. Came to find me when he was finished to report that everything checked out OK. It was very helpful to get the text messages letting me know that he was on his way, so I could secure the dogs. Overall an excellent experience.

June 25, 2024  -  Kathy Cohan, Upton MA