HEATING OIL, BIOFUEL, PROPANE HOME COMFORT OPTIONS No matter what fuel source your home or business runs on, there are many comfort enhancements and improvements to choose from that will keep you in your “comfort zone” 24/7 all year round.


Installations. Sales. Service
We provide full heating and air conditioning services. That includes installation & servicing of HVAC systems, tanks, furnaces, boilers and hot water heaters. We also install and service Mitsubishi Electric Ductless Heat Pump & A/C Systems.


You probably have some questions along the lines of “What kind of heating/cooling system do I have now? How does it work?” To help you make decisions you are comfortable with, check out our FAQ page.

Heating Oil, Propane and Bio Fuel Budget Plans for Year Round Home Comfort

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 Home Fuel Delivery Plans and Service Plans are competitive, providing full service to meet your budget and home comfort needs.

Daniels Energy is located at 8 High Street, P.O. Box 32, Portland, CT 06480 and 103 Mill Rock Rd E, Old Saybrook, CT 06475

Daniels Opens New 60,000 Gallon Propane Facility in Old Saybrook

Daniels Propane Old Saybrook industrial facilities: a large propane storage tank, parked utility vehicles, and a warehouse with parked trucks.
Advertisement for Daniels Energy's Mitsubishi A/C Heat Pump Special. Current offer includes a $750 VISA gift card and rebates for up to $2,000, valid until June 15th, 2024. Features an image of HVAC units. Don't miss out on these incredible savings!

*$750 Visa gift cards with the purchase and installation of a two head single compressor system. Minimum size restriction and SEER ratings apply. Not available on previous sales. Under the Inflation Reduction Act, homeowners are eligible for a tax credit of 30% of the cost, up to $2,000, for heat pumps, and/or heat pump water heaters, in accordance with section 25C of the US tax code. Only certain models qualify for the tax credit, and you must have a tax liability from which to reduce your taxes. Consult your tax advisor for advice. Offer is good for sales to existing Daniels customers during the first 15 days of June. Installation must be completed by August 30, 2024. **Energize CT rebates-depending upon system size. SEER ratings and zip code. See Daniels representative for complete details. Daniels Energy: CT License S1-385517 HOD#19 / Daniels Propane LLC #846 CT License S1-302857