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

Ed was hear within an hour after I called. He fixed the overflow problem quickly & efficiently. Was kind and courteous. Very pleased with his work.

August 31, 2023  -  Donna Elmes, Worcester MA

Will was fantastic. He not only showed up on time and performed all services wonderfully but he also helped walk us through a problem area we are having. He spent time explaining all the proponents of the issue and helped us get to the bottom of who to contact next. He went above and beyond for us and it made what could have been a difficult day easier.

August 30, 2023  -  Kathleen Doherty , Millbury MA

Jim was professional, courteous, and efficient while visiting for our annual cleaning.

Also, longtime customers but first survey we are completing it because Jim took the time to explain everything and then reviewed the survey with us. In the past the paper just landed in a pile, never even knew a survey was attached.

Thanks, Jim - you are great!

August 28, 2023  -  Thomas Napolitano, Upton MA


Ed came to fix problems with the new furnace installed on 8/22/23. Replaced control unit, found and repaired 3 leaks. Ed was very thorough with the repairs as well as testing everything multiple times to ensure the proper function of all system components. I would gladly have Ed return for maintenance if the occasion arises. I was extremely satisfied with his work ethic and demeanor.

Thanks ED!!

August 26, 2023  -  Timothy Mackin, North Grafton MA

Tim was very personable and answered all my questions!!! Represents your company well.

August 24, 2023  -  Ray Dodge, Holden Ma

I had an appointment on Monday, but no one came I ended up rescheduling, Jim did a great job, was very professional, and cleaned up before he left. Very pleased with the service today. Thank you Jacqueline Heerde 

August 24, 2023  -  Jacqueline Heerde, Upton Ma

We have had only good experiences with the ckSmithSuperior service staff. They installed a propane heater and mini splits, both of which were done professionally and in a clean, workman-like fashion. When service has been needed, it has been easy to schedule, at a convenient time, and all issues were addressed. Our most recent oil burner cleaning was completed by Tim Sheperd who was courteous, friendly, efficient, and thorough.

August 23, 2023  -  Arthur Allen, Princeton MA

Jim came in and performed is maintenance quickly and efficiently.

August 23, 2023  -  Romuald Cieszynski, Worcester ma

Doug was friendly, knowledgeable, and thorough. He was more than willing to answer my questions and take the time to explain all the maintenance he performed on our system. He was fantastic!

August 22, 2023  -  Angela Logan, HOPKINTON MA

Doug was very professional and very friendly. He worked quickly and efficiently. He is a credit to the CKSmith Superior team. Great attitude, great with customers. You should be very proud of this young man!

August 22, 2023  -  Anthony Vassel, UPTON MA