Heating & Cooling Specialists

Oil, Propane, Natural Gas and HVAC Service

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

Click for the BBB Business Review of this Oils - Fuel in Portland CT

Login to My Account


Oil, Propane and Natural Gas.

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

Oil • Propane • Gas
Heating & Cooling Services.

oil and propane delivery
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.

Heating & Air Conditioning.
Expert Service.
HVAC sales, service and repairs

We 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, natural gas or electricity… we can help you!

Oil to Gas Conversions.  HVAC Systems.

natural gas conversions and service
Clean, safe natural gas is available in many parts of Central Connecticut and the Shoreline. Daniels Energy is the best choice for converting your home from oil to natural gas.

Let Daniels Energy Do It.

8 High Street, P.O. Box 32, Portland, CT 06480 • 24 Main Street, Centerbrook, CT 06409, P.O. Box 391 • Essex, CT 06426

Phone: 860-342-3778, 860-537-3011, 860-767-1920, 860-669-9674, 203-245-8660
Portland Fax: 860-342-4203, Essex Fax: 860-767-0442

Daniels Energy: CT License S1-385517 HOD#19 / Daniels Propane. LLC: CT License S1-302857 HOD #846