The choice between oil and gas heat often starts with what is already in your home. A Cheshire home with a newer oil boiler and a sound tank may have little reason to convert. A home with an old boiler, a rusting tank, and natural gas at the street may be a better candidate.
Before choosing, look at the whole project. Consider your heating bills, equipment age, oil tank, gas access, venting, and how long you plan to own the home. Propane may also be an option when natural gas isn’t available.
Oil vs. Gas Heating: What Are the Main Differences?
Oil is delivered and stored in a tank at your home. You can check the fuel level yourself or sign up for automatic delivery.
Natural gas reaches your home through utility lines. It doesn’t require a storage tank, but gas service must be available at your address.
Oil and gas can both power furnaces and boilers. Comfort and energy use depend on the equipment, its size, and how well it was installed.
If natural gas isn’t available, you can also consider propane heating.
Fuel Cost and Price Stability
Oil and natural gas prices can both change. One may be cheaper one winter and more expensive the next.
Your heating costs also depend on:
- Home size and insulation
- Equipment efficiency
- Thermostat settings
- Winter weather
- Utility fees
- Oil delivery plans
- Total fuel use
Oil customers may choose automatic delivery or a budget plan. Fuel oil service can make deliveries easier to manage.
Gas doesn’t require deliveries, but utility fees may be added to the bill. Before changing fuels, compare several years of heating bills with the estimated cost of a new system.
Convenience and Fuel Supply
Oil is stored in a tank at your home. The tank takes up space and needs a clear path for deliveries. It should also be checked for rust, damp spots, or other damage.
Automatic delivery makes it easier to keep enough oil in the tank. You should keep the fill and vent pipes easy to reach.
Natural gas comes through utility lines, so it doesn’t require a tank or deliveries. However, gas service isn’t available everywhere. Connecting your home to a nearby gas line may also cost more and take longer than expected.
If your heating system still works well, replacing the oil tank may be easier than switching to gas.
Maintenance Requirements
Oil and gas heating systems both need yearly maintenance.
Oil service may include cleaning the burner, replacing the nozzle and filter, and checking for soot. The technician should also inspect the fuel lines, venting, safety controls, and tank.
Gas systems need checks of the burners, ignition, gas pressure, heat exchanger, venting, and safety controls.
Boilers also have pumps, valves, and water lines that need attention. Regular boiler service can find leaks and worn parts early.
Furnace service includes checking the filter, blower, ducts, airflow, and fuel-burning parts. Even if a gas system needs less cleaning, it still needs yearly service.
Efficiency and Heat Output
Oil and gas can both heat a home well. Comfort depends on the entire system, including:
- Equipment size and efficiency
- Duct or baseboard condition
- Thermostat controls
- Insulation
- Installation and maintenance
Blocked ducts or small baseboards can leave rooms cold. An oversized system may turn on and off too often.
New equipment can improve comfort and reduce fuel use without changing fuel types. Before a furnace replacement, the contractor should calculate the right furnace size for your home.
Environmental Impact
Natural gas usually produces less carbon dioxide and fewer particles in the home than oil. Removing an oil tank also removes the risk of an oil leak.
However, natural gas can release methane during production and delivery. Oil and gas are both fossil fuels.
Efficient equipment, better insulation, and sealed air leaks can lower fuel use with either system. A heat pump may also be an option. Consider the environmental impact along with cost, comfort, and fuel availability.
When Does Staying With Oil Heating Make Sense?
Keeping oil may make sense if your current system works well and natural gas isn’t easy to get.
Oil may also be the better choice when:
- The furnace or boiler is newer.
- The oil tank is in good condition.
- Gas service would be costly to add.
- Switching would require major changes.
- Automatic oil delivery works well.
- You plan to sell the home soon.
- You prefer storing fuel at home.
An old oil tank doesn’t always mean you need a new heating system. If the furnace or boiler still works well, you may only need to replace the tank.
Also consider how long you plan to stay in the home. It may take years for lower heating costs to cover the cost of switching to gas.
When Should You Consider Switching From Oil to Gas Heat?
Switching from oil to gas may make sense if gas service is already available and your oil equipment or tank needs replacement.
You may also consider switching if:
- Your furnace or boiler needs frequent repairs.
- The oil tank is rusted or damaged.
- You want to stop oil deliveries.
- You want to remove the oil tank.
- You plan to add other gas appliances.
- You plan to stay in the home for many years.
The project may require gas piping, venting, electrical work, permits, and oil tank removal.
Switching fuels won’t fix poor insulation, leaky ducts, small baseboards, or equipment sizing problems. These issues should also be addressed.
Frequently Asked Questions
Ask whether a main runs along your street, whether a service line reaches your home, and whether you’ll pay for extension work. Gas on a nearby street doesn’t always mean the home can connect easily.
Age is only one factor. An older unit with a good service history may still work reliably, while a newer neglected system may have serious damage.
A contractor should check them first to make sure they are the right size and in good condition.
Oil-to-gas conversion cost depends on the work needed at that specific home. The estimate may include:
- Utility connection work
- New heating equipment
- Gas piping
- Venting or chimney work
- Electrical changes
- Permits and inspections
- Oil tank removal
- Remaining oil disposal
- Duct or baseboard repairs
- New thermostats or controls
Request a written estimate showing what is and isn’t included. Qualified homeowners can also review available financing options.
Use licensed contractors and make sure all permits and inspections are completed. Keep copies of the records.
Compare Oil and Gas Heating Options With F.F. Hitchcock
Natural gas can remove the need for deliveries and an oil tank. Oil may remain the better choice when the equipment is dependable, the tank is sound, and delivery is easy.
Family-owned and locally operated since 1870, F.F. Hitchcock Plumbing, Heating & Cooling can inspect your equipment, tank, fuel access, venting, and heating system before recommending a path forward. We provide oil heating service, tank replacement, fuel delivery, propane, gas piping, and complete gas heating conversions in Connecticut.
Contact F.F. Hitchcock Plumbing, Heating & Cooling to compare oil and gas heating options for your Connecticut home.
