Home Heating Oil 101: Fuel Types, Additives, and Myths

What is home heating oil?

Most homes use No.2 home heating oil, a refined petroleum product with high energy density: about 138,500 BTU per gallon. 

Additives in winter

Cold weather can cause wax crystallization (gelling) and poor flow. Winter additives inhibit gelling, disperse water, and reduce sludge formation. Outdoor tanks and long exterior lines benefit most. We adjust additive use seasonally based on temperature trends.

Efficiency basics

Your fuel consumption is shaped by insulation, air sealing, thermostat habits, and burner tuning. An annual tune‑up with nozzle and filter replacement can reclaim 3–10% efficiency. Smart thermostats with gentle setbacks add savings without comfort loss.

Myths, busted

  • “Heating oil is dirty.” Modern burners are cleaner and efficient.
  • “Bigger flames mean faster heat.” Oversized nozzles waste fuel and strain equipment.
  • “Turning heat way down saves big.” Deep setbacks can backfire; aim for modest, steady adjustments.
  • “All oils are the same.” Additives, delivery quality, and storage conditions matter.

Storage & tank care

Keep the fill and vent clear, check for rust, dampness, or odors, and make sure the vent whistle works to prevent overfill. For outdoor tanks, support lines and consider a shed or enclosure. Schedule an inspection if you don’t know when the last time it was done

Ordering smarter

Know your tank size and gauge, watch seasonal price patterns, and consider automatic delivery so we track degree‑days and deliver before you’re low. Pair with a budget plan for predictable monthly payments.

The bottom line

With the right maintenance, modern home heating‑oil systems are efficient, dependable, and ready for New England winters. We’ll help you choose the best fuel option and keep your system running at its best.

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Ready to order or set up automatic delivery? Call us or place an order online. For emergencies, please call so we can triage quickly.

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