IMMEDIATE OPENINGS: Experienced HVAC Technicians and Installers.

We have great employment packages for qualified people. Find out more! 
Connecticut Propane and Connecticut Oil
Daniels oil, propane, heating

Responsive, ethical & courteous customer service is our family tradition. Our Service Areas

Daniels Energy: Connecticut Oil. Connecticut Propane

Connecticut Heating & Air Conditioning Service

What our customers sayWhen it comes to total home comfort, no one does it like Daniels Energy.
We deliver oil and propane. Need HVAC repairs or an upgrade on your heating or central air conditioning system? Give us a call for heating service! Family owned since 1926, we pride ourselves on our reliable, courteous and ethical customer service.

We also handle oil-to-propane installations and conversions.

Oil or Propane Delivery:

Equipment & Services

Oil & Propane Delivery | Heating & Cooling Services:

Featuring Affordable Delivery & Service Plans.

Better Business Bureau and Angie's ListAs home heating oil specialists, we provide full heating and air conditioning services. That includes installation & servicing of HVAC systems, tanks, furnaces, boilers and hot water heaters. Our Fuel Oil costs less than the state average for Connecticut. We also install and service Mitsubishi Electric Ductless Heat Pump & A/C Systems.


Since 1926, the Daniels family has provided families like yours with power fuels and great customer service. As our communities have grown and home heating technologies have changed, we have kept up with the times. Only commitment to our customers has not changed. Call us today for courteous and ethical service. Our Delivery Plans and Service Plans are competitive, providing full service to meet your budget and home comfort needs.

Let Daniels Energy Do It.

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Oil • Propane • Gas
Heating & Cooling Services.

Daniels oil, propane, gas and HVAC service The Daniels family has delivered home heating fuels to families like yours since the 1920’s. We offer reliable Oil or Propane Delivery Plans with affordable Service Plans. See our service region.

Oil to Propane Conversions.  HVAC Systems.

natural gas conversions and service

Clean, safe propane is available everywhere. Daniels Energy is the best choice for converting your home from oil to propane.

Heating & Air Conditioning.
Expert Service.

HVAC sales, service and repairsWe are state certified and fully trained to sell, install and service all makes of heating and air conditioning systems. No matter your energy source; oil, propane or electricity… we can help you!

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Courteous and ethical customer service since 1926. See what our customers say. Comprehensive heating and cooling services.  Sales, service and fuel delivery.

Our Service Areas. (See Map)

Andover, Avon, Berlin , Bloomfield, Branford, Cheshire, Chester, Clinton, Columbia, Colchester, Cromwell, Deep River, Durham, East Hampton, East Haddam, East Hartford, East Lyme, Essex, Farmington, Glastonbury, Guilford, Haddam, Hebron, Killingworth, Lebanon, Madison, Manchester, Marlborough, Meriden, Middlefield, Middletown, Moodus, New Britain, Newington, Niantic, North Branford, Old Saybrook, Plainville, Portland, Rocky Hill, Salem, South Windsor, Southington, West Hartford, Lyme, Old Lyme, Northfield, Simsbury, Wallingford, Waterford, West Hartford, Westbrook, Wethersfield, Windsor


8 High Street, P.O. Box 32, Portland, CT 06480 • 24 Main Street, Centerbrook, CT 06409
Portland: 860-342-3778 • Essex: 860-767-1920
Daniels Energy: CT License S1-385517 HOD#19 / Daniels Propane. LLC: CT License S1-302857 HOD #846