How to Convert From Oil to Gas Heating
Is it Time to Switch from Oil to Gas?
Many homeowners with older heating systems rely on heating oil delivered by truck to keep their homes warm. While oil is an effective heat source, it often comes with fluctuating prices and the need for regular tank maintenance.
Converting to natural gas is a popular home improvement project that can offer greater convenience and potential long-term savings. If your oil furnace is reaching the end of its lifespan, understanding the conversion process is the first step toward a more efficient home.
The Benefits of Converting to Natural Gas
Natural gas is generally more cost-effective and burns cleaner than heating oil. This transition often leads to lower monthly utility bills and a smaller carbon footprint for your household.
- No more deliveries: Natural gas is supplied via underground pipes, so you never have to worry about running out of fuel or scheduling truck deliveries.
- Higher Efficiency: Modern gas furnaces often achieve much higher AFUE ratings than older oil units.
- Versatility: Once you have a gas line, you can easily add gas ranges, clothes dryers, or outdoor grills.
The Steps to Convert From Oil to Gas
The conversion process involves several technical stages that require professional expertise. Before you begin, it is vital to check HVAC contractor reviews effectively to ensure you hire a qualified team for the job.
1. Verify Natural Gas Availability
Contact your local utility company to see if natural gas lines run under your street. If they do, the utility company will need to install a service line from the street to your home and set up a meter.
2. Choose Your New Equipment
You will need to select a new gas furnace or boiler. This is the perfect time to evaluate your home's heating load to ensure the new unit is properly sized. If you are also planning a major renovation, you might want to learn how to choose HVAC for a new build home to understand modern sizing standards.
3. Remove the Old Oil Tank
Old oil tanks can be a liability. Whether your tank is in the basement or buried underground, it must be professionally decommissioned, emptied, and removed to prevent environmental hazards.
4. Install the Gas Line and Venting
Natural gas requires specific piping (usually black iron or flexible CSST) and specialized venting. Unlike oil furnaces that often use a brick chimney, high-efficiency gas furnaces often vent through PVC pipes exiting the side of the house.
Understanding the Costs Involved
A conversion is a significant investment. You should budget for the cost of the new furnace, the utility connection fee, the removal of the oil tank, and the labor for installing new gas lines.
While the upfront cost is high, many homeowners find that the reduced maintenance costs and lower fuel prices pay for the system over time. You can find trusted professionals to provide quotes for this project by searching the directory at HVACDatabase.com.
Common Challenges During Conversion
Every home is unique, and you may encounter hurdles during the transition. For instance, if your existing ductwork is sized for a low-velocity oil system, it may need modifications to handle a high-efficiency gas blower.
If you experience issues shortly after installation, such as the unit not firing up, you may need to how to reset your HVAC circuit breaker or check the gas shut-off valve. If the system fails to start entirely, knowing how to troubleshoot a furnace that won't heat can help you identify if the problem is a simple thermostat setting or a complex mechanical failure.
Maintenance: Gas vs. Oil
One of the biggest perks of gas is the reduced maintenance. Oil systems require frequent nozzle cleaning and filter changes due to the "dirty" nature of the fuel. Gas systems are much cleaner, though they still require annual inspections.
During these inspections, technicians check components like the furnace draft inducer motor to ensure the system is exhausting gases safely. Keeping your new system maintained ensures it hits its expected lifespan of 15 to 20 years.
Making the Final Decision
If your oil tank is aging or your furnace is frequently breaking down, the switch to gas is a smart long-term move. It increases your home's resale value and simplifies your monthly chores.
For homeowners who use other localized heating methods, like wood or pellets, it is also helpful to review tips for maintaining a pellet stove if you plan to keep a secondary heat source. Also, remember that your water heater may need to be replaced or converted to gas as well. If you choose to keep your current electric water heater, make sure you know how to flush a tank water heater to maintain its efficiency alongside your new gas furnace.
Find a Pro Today
Converting your home's energy source is not a DIY project. It involves permits, pressure testing, and strict safety codes. You can find trusted HVAC contractors on HVACDatabase.com who specialize in oil-to-gas conversions and can guide you through the local permit process.