Oil Furnace Replacement in Greenville, SC
Air Today has been helping Greenville homeowners replace aging oil furnaces and switch to more cost-effective systems for over 45 years. Honest advice, upfront pricing, and installations done right the first time.
Greenville's Trusted Oil Furnace Replacement Team
Oil furnaces have heated homes in the Upstate for decades, but most of the systems still running today are well past their prime. If yours is pushing 20 years or older, costing more to run each season, or requiring repairs that are starting to add up, it’s worth having an honest conversation about what your options actually look like.
At Air Today, we work with homeowners in two situations. Some want a straight oil furnace replacement, a newer, more reliable unit that runs cleaner and more efficiently than what they have now. Others are ready to move away from oil entirely and want to understand what switching to gas or another system would involve and whether it makes financial sense for their home. We handle both, and we’ll give you a clear picture of the costs and tradeoffs before you commit to anything.
What we won’t do is steer you toward the most expensive path or tell you your current system is done when it isn’t. We’ve been doing this in Greenville for over 45 years, and our reputation here is built on giving people straight answers rather than pushing them toward decisions that benefit us more than them.
Greenville Heating & Cooling Services
Awards & Recognition
Air Today Heating & Cooling has been named a 2024 Best of South Carolina award winner in the HVAC Sales & Service Companies category by Guide to South Carolina. This recognition, awarded to fewer than 10% of businesses statewide, highlights our dedication to superior service and trusted expertise. We’re grateful to our Greenville community and proud to continue serving Upstate SC with top-quality furnace installation heating solutions.
100% Satisfaction Guarantee or Your Money Back!*
45+ Years of Residential HVAC Experience
Family-Owned, Locally Trusted
When It's Time to Replace Your Oil Furnace?
Oil furnaces tend to have a shorter lifespan than gas systems, and most units start showing their age well before they stop working entirely. The average oil furnace lasts between 15 and 25 years depending on how well it was maintained, but efficiency drops off significantly in the later years even on a system that’s still technically functional.
Signs your oil furnace may need to be replaced:
- Heating oil consumption has increased noticeably without a change in usage habits
- The system takes longer to reach the set temperature than it used to
- Soot or oily residue around the furnace or registers
- Frequent burner lockouts requiring a manual reset
- Uneven heating with certain rooms staying cold regardless of thermostat settings
- Repair bills that are becoming a regular occurrence rather than an exception
Oil furnaces that are burning more fuel to produce the same amount of heat are costing you money every time they run. An older unit operating at 70% efficiency is wasting 30 cents of every dollar of heating oil, and with oil prices being less stable than natural gas, that inefficiency hits harder during seasons when prices spike.
Soot buildup and burner lockouts are worth paying particular attention to. Both can indicate combustion problems that go beyond normal wear and should be assessed by a technician sooner rather than later.
Repair or Replace Your Oil Furnace?
The repair versus replace calculation works a little differently with oil furnaces than it does with gas. Because heating oil is more expensive and less price-stable than natural gas, an aging oil system that’s losing efficiency costs you more with each passing season even if it’s technically still working. That changes the math on what a repair is actually worth.
A minor fix on a relatively young oil furnace, say under 15 years old and in otherwise good condition, is usually worth doing. Replacing a nozzle, cleaning the burner assembly, or swapping out a pump are routine repairs that extend the life of a well-maintained system without spending a lot of money. If the rest of the unit is solid, those repairs make sense.
The situation shifts when the furnace is older and the repairs are getting more significant. A heat exchanger replacement or a major burner overhaul on a 20-year-old oil furnace is a hard spend to justify when you’re also paying more for fuel each winter than you would with a newer system or a different fuel type. At that point the question isn’t just whether to repair or replace the oil furnace, it’s whether to stay on oil at all.
Switching to gas, if a natural gas line is accessible at your property, is something a lot of Greenville homeowners in this situation look into seriously. The conversion involves upfront costs but typically results in lower and more predictable heating bills over time. We can walk you through what that would involve for your specific home and give you the numbers to compare against a straight oil furnace replacement so you can make the decision that actually makes sense for your situation.
Why Greenville Homeowners Choose Air Today Heating & Cooling
Flexible Financing
We offer flexible financing options on BOTH installation AND repairs! Get the comfort you need today without the stress of upfront payments!
Expert HVAC Technicians
Our HVAC technicians are fully licensed and undergo background checks and drug testing before they enter your home. We hire people we'd trust in our own homes and hold them to that standard on every job.
Local Family Owned Company
Air Today is owned and operated by the Taylor family, and we've been serving Greenville for over 45 years. When you call us, you're not getting a random contractor from a call center. You're getting a team that has built its reputation in this community and intends to keep it.
100% Satisfaction Guaranteed
We stand behind every installation. If something isn't right, we'll fix it. If we can't fix it, you get your money back. Call us for details on how the guarantee works.
Honest & Up-Front Pricing
We'll give you the full cost before any work begins, and that number won't change once we start. No hidden fees, no overage charges, no surprises when you get the bill.
Local Family Owned Company
As a local family business, every service call is personal to us. The Taylor family brings three generations of HVAC expertise directly to your door, ensuring quality work backed by our reputation and family name.
Testimonials and Customer Reviews
Frequently Asked Questions
A straight oil furnace replacement in Greenville typically runs between $4,000 and $9,000 depending on the size of the unit and the complexity of the installation.
Oil furnaces tend to cost more than comparable gas units partly because of the equipment itself and partly because the installation often involves inspecting or replacing the oil tank, supply lines, and flue system alongside the furnace. If you’re converting from oil to gas at the same time, the cost will be higher upfront due to the gas line connection and removal of the existing oil system, but most homeowners who make the switch see lower operating costs that offset that investment over time.
We provide free estimates so you’ll have exact numbers for your home before making any decisions.
It depends on whether natural gas is available at your property and what your current oil furnace situation looks like.
If your system is relatively young and in good condition, a straight replacement with a newer oil furnace may be the simpler and more cost-effective path. If your system is old, your repair costs are climbing, and you have access to a natural gas line, a conversion often makes more financial sense over a five to ten year window. Heating oil prices fluctuate significantly from season to season, while natural gas tends to be more stable and cheaper per BTU in South Carolina.
We’ll look at both options and give you a clear cost comparison so you’re not making the decision blind.
Most oil furnaces last between 15 and 25 years, though the upper end of that range requires consistent maintenance including annual burner cleanings, nozzle replacements, and filter changes. An oil furnace that hasn’t been serviced regularly will typically start showing performance problems well before the 20-year mark. If your system is past 15 years and you’ve noticed it burning more oil than it used to or struggling to keep up on colder days, those are signs that efficiency has declined enough to start thinking seriously about replacement.
Converting from oil to gas involves connecting your home to the natural gas supply line, installing a new gas furnace, and decommissioning the existing oil system including the tank and supply lines. The oil tank removal process depends on whether the tank is above or below ground. Above-ground tanks are straightforward to remove, while underground tanks involve additional steps and may require soil testing depending on their condition. The total cost of a conversion varies based on how close the nearest gas line is to your property and the scope of work involved. We assess all of this as part of the estimate so you know the full picture before committing.
Oil furnaces need annual servicing to run safely and efficiently. A typical oil furnace tune-up includes cleaning the burner, replacing the nozzle and filter, checking the heat exchanger for cracks, and testing combustion efficiency. Unlike gas furnaces, oil systems produce soot and residue as a byproduct of combustion, which builds up over time and affects performance if not cleaned regularly. Skipping annual maintenance on an oil furnace tends to show up fairly quickly in higher oil consumption and more frequent breakdowns.
Yes, we offer financing on both replacements and conversions. Whether you’re replacing your oil furnace with a newer unit or switching to gas entirely, we can walk you through financing options during the estimate so you have a clear picture of the monthly cost before making a decision. For homeowners converting to gas, financing can make the higher upfront cost of the conversion much easier to manage while you start benefiting from lower monthly heating bills.
Schedule Your Oil Furnace Replacement
If your oil furnace is getting harder to keep up with, costing more each season, or you’ve been thinking about making the switch to gas, we’re here to help you figure out the best path forward. Air Today offers free, no-obligation estimates and we’ll give you a straight answer on whether a replacement, a repair, or a full conversion makes the most sense for your home and budget.
There’s no pressure and no commitment required to get an estimate. We’ll assess your current system, walk you through your options, and let you make the call.
Call us at (864) 295-0905 or book online to schedule your consultation.