Used oil furnace prices typically range from $1,500 to $5,000 for the heater alone, while a working, installed system often totals $3,000 to $9,000. Cost depends on furnace capacity, condition, included filtration and tank equipment, installation complexity, and whether the unit is approved for the intended waste oil.
These are usually waste-oil heaters for garages, shops, and commercial buildings, not standard residential furnaces that burn heating oil. Buyers should confirm the model’s fuel specifications, local rules, and service history before comparing quotes.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Used furnace, equipment only | $1,500 | $3,250 | $5,000 | Used unit, condition and accessories vary |
| Used furnace, installed | $3,000 | $5,500 | $9,000 | Typical shop installation with standard venting |
| New waste-oil furnace, equipment only | $5,000 | $8,500 | $12,000 | Brand, capacity, controls, and filtration affect price |
| Service and inspection | $150 | $350 | $700 | Before purchase or at initial startup |
Used waste-oil furnace prices by capacity and condition
A used waste-oil furnace costs about $1,500-$5,000 before delivery and installation. Smaller heaters rated around 100,000-150,000 BTU per hour tend to fall near $1,500-$3,000, while larger 200,000-500,000 BTU units in working condition commonly list for $3,000-$5,000. Local availability and included accessories can shift the asking price.
A practical planning budget is $3,000-$9,000 for a used unit installed and checked for safe operation. That range assumes a basic shop application, an accessible installation area, ordinary venting work, and no major electrical or building upgrades. It does not automatically include a new storage tank, long-distance freight, or extensive chimney repairs.
Listings are not equivalent to verified installed prices. A low-cost unit may be sold as-is, lack a pump or burner components, or require a specialist to confirm compatibility. A higher-priced used furnace may include a pump, filtration equipment, controls, delivery, or a limited seller warranty. Buyers should request the model number and a written list of included parts.
Assumptions: U.S. pricing, used equipment in serviceable condition, standard shop installation, and no major code or chimney work.
Burner, tank, venting, and labor in a used-unit quote
Quotes can bundle the heater with parts and labor or itemize them separately. Comparing the same work scope matters: one quote may include the oil tank and startup testing, while another covers only mounting and connection. The following ranges reflect common small-shop projects; specialized equipment or difficult access can exceed them.
| Quote component | Typical price | What changes the charge | Common unit |
|---|---|---|---|
| Used furnace and burner | $1,500-$5,000 | BTU capacity, age, tested condition, included controls | Per unit |
| Pump and filtration parts | $300-$1,200 | New versus used parts, filtration stage, oil condition | Per system |
| Tank and basic fittings | $400-$1,500 | Tank size, secondary containment, new or reused tank | Per tank |
| Venting and chimney work | $500-$2,000 | Flue length, diameter, roof or wall penetration | Per project |
| Installation labor | $700-$2,000 | Connections, access, electrical changes, startup | Per project |
| Delivery and removal | $150-$900 | Distance, lifting needs, disposal of old equipment | Per trip or job |
Labor rates vary, but HVAC or waste-oil equipment technicians may charge roughly $75-$150 per hour. A straightforward installation may take 8-16 labor hours; complex venting, tank placement, or repairs to a used burner can add time.
Confirm that the quote includes startup, combustion checks, and testing—not just physical installation. A furnace that lights may still have poor combustion, incorrect draft, or oil-feed problems. Ask whether the technician will document operating checks and identify repairs that are excluded from the quoted total.
How BTU capacity and oil-feed equipment change the price
Capacity should match the building’s heat loss, not simply its square footage. A 100,000-150,000 BTU-per-hour heater may suit a smaller, reasonably insulated work area, while a large, drafty shop could need 200,000 BTU per hour or more. Oversizing can increase equipment cost and lead to inefficient cycling; undersizing may leave the space cold during severe weather.
Oil-feed condition is another major price variable. A complete pump, preheater, metering system, and filtration setup can add several hundred dollars to a used unit’s value. Replacing missing or worn components may add $300-$1,500, depending on the model and parts availability. A seller should identify what the furnace can burn and whether it has been tested using that fuel.
Waste-oil heaters are designed for specified fuels, such as used motor oil or certain approved mixtures. They should not be assumed to accept contaminated fluids, solvents, gasoline, or any oil available in a shop. Fuel quality affects maintenance and emissions, and may influence whether the equipment is permitted at a particular site.
Venting dimensions and building conditions also affect the estimate. A short, properly sized flue may cost $500-$900 to install or adapt, while a tall run, roof penetration, or deteriorated chimney can push the work above $2,000. Electrical work, a concrete pad, or changes to combustion-air supply may add separate charges.
Ask the contractor to state the recommended BTU range and verify the flue and fuel setup before paying a deposit. A specific capacity recommendation tied to the building and usage is more useful than a quote based only on the size of the used furnace being sold.
Installation hours and technician rates for used heaters
A simple replacement in a shop with a suitable existing flue and tank may take one technician roughly 8-12 hours, producing a labor charge near $600-$1,800 at $75-$150 per hour. A new location, missing fuel equipment, or chimney alterations can require 16-24 hours of combined labor and raise labor costs to about $1,200-$3,600.
Used equipment often takes longer than a new, complete package because installers may need to inspect wiring, replace seals, clean the combustion chamber, source compatible parts, or troubleshoot the burner. A pre-purchase inspection commonly costs $150-$350, excluding repairs. Some sellers arrange a demonstration, but a demonstration is not a substitute for an independent inspection or a written warranty.
Travel and service minimums matter in rural areas. A contractor may charge a $100-$250 trip or diagnostic fee, or set a minimum visit charge even when the repair is brief. If installation is scheduled during peak heating demand, availability may be limited and urgent service can carry additional charges.
Request separate labor, travel, startup, and repair allowances so the used-unit price does not conceal the installation expense. If a quote has a broad allowance for “miscellaneous parts,” ask what it covers and how unused funds will be handled.
Used furnace versus new waste-oil equipment pricing
A used heater may cost $1,500-$5,000, compared with about $5,000-$12,000 for a new unit before installation. The lower used price can be worthwhile when the model is supported, parts are available, and testing confirms safe operation. A new system may include manufacturer support, current documentation, and a longer warranty, but still requires installation, venting, and fuel storage.
Compare the full installed total rather than the equipment price alone. A $2,000 used furnace needing $2,500 in parts and labor may approach the cost of a new entry-level unit. Conversely, a complete used system with a tested burner and usable tank can keep the total near $3,000-$5,000 when site work is minimal.
Repairing an existing waste-oil furnace is another option. A routine cleaning or minor service may cost $150-$500, while burner or pump repairs can run $300-$1,500. If the heat exchanger is damaged, controls are obsolete, or repeated service is needed, replacement may be more economical than investing in a unit with uncertain remaining life.
These heaters differ from conventional residential oil furnaces. Standard home heating oil furnaces generally use No. 2 heating oil and have different burner, venting, and installation requirements. A used waste-oil furnace should not be treated as a drop-in replacement for a home furnace.
Used equipment offers the strongest price advantage when its condition and parts package are documented. A bargain listing with no service history, incomplete components, or no return terms can become expensive after freight, repairs, and commissioning.
Regional freight and permit charges around the United States
Equipment and installation totals can vary by roughly 10%-25% between markets. Large industrial and automotive regions may have more used units and technicians familiar with waste-oil systems, while rural locations can face fewer sellers and higher travel or freight costs. In high-cost metro areas, labor may run 15%-30% above a national middle-market estimate; rural delivery can add $200-$900 depending on distance and unloading requirements.
Climate and local rules affect the project more than the sticker price. Colder regions may require greater capacity, stronger freeze protection for oil lines, or more operating hours. A mild-climate shop may need a smaller unit, but local exhaust and air-quality requirements still apply. Permit charges, where required, can range from about $50-$500, with inspections or engineering documentation adding cost.
Waste-oil combustion may be regulated differently from ordinary heating equipment. Requirements can depend on fuel source, facility type, emissions, and whether the site is residential, commercial, or industrial. The local building or environmental authority should confirm approval before purchase; some jurisdictions restrict waste-oil burning or require specific equipment and records.
Verify permission for the exact furnace model and fuel before arranging delivery. A permit denial or required chimney redesign can erase the apparent savings of buying a low-priced unit from another state.
Three used-furnace quotes for different shop projects
The examples below show how scope changes the total. They assume ordinary access and exclude unusual structural work. Prices are illustrative estimates rather than fixed national rates.
| Project details | Equipment and unit rate | Labor and other work | Estimated total |
|---|---|---|---|
| Small 120,000 BTU shop, tested unit, existing flue | $2,000 furnace; $400 filtration | 8 hours at $95, $500 startup and connection | $3,660 |
| 250,000 BTU garage, tank and vent adaptations | $3,500 furnace; $700 pump parts | 14 hours at $110, $1,100 tank and venting | $6,840 |
| 400,000 BTU workshop, freight and new flue run | $4,500 furnace; $900 filtration | 20 hours at $125, $1,800 flue, $600 freight | $10,300 |
In the first example, the unit is inexpensive to install because the existing chimney is suitable and the furnace arrives tested. In the second, added tank and vent work account for much of the increase. The third reaches the high end because the larger heater requires more labor, long-distance delivery, and a new flue.
When comparing a quote, check capacity, model, equipment condition, fuel-feed parts, venting scope, labor hours, freight, startup testing, and warranty terms. If a line item is missing, ask whether it is excluded or included in another charge.
Specifications and included work make these example totals useful for comparison; the furnace price alone does not. A written quote should describe the site assumptions and note what could trigger additional charges.
Ways to lower the used oil furnace bill without cutting safety
Choose a capacity based on a heat-loss assessment rather than buying the biggest available unit. Staying near the appropriate BTU range can avoid paying for excess capacity and may reduce flue or fuel-system requirements. Ask whether an existing tank, chimney, or electrical circuit can be reused after inspection; do not assume an older component is suitable.
Compare at least three written quotes using the same model and scope. Ask sellers to include the serial number, burner condition, known repairs, included accessories, delivery terms, and return policy. A local used unit can save $200-$900 in freight, but only if the technician can obtain parts and service it.
Schedule a non-emergency inspection before the heating season when local technicians are less busy. Combining the inspection with installation planning may reduce repeated trip charges. Buyers can also prepare the site by clearing access and confirming floor, electrical, and flue conditions, but fuel connections and combustion setup should be handled by qualified professionals.
Do not cut costs by skipping filtration, safe tank placement, venting requirements, or startup testing. A furnace advertised as complete may still need parts or code work. Where the repair estimate for an existing unit is below roughly $500 and the heat exchanger and controls are sound, repair may cost less than replacement; repeated repairs above $1,000 warrant comparing replacement totals.
The most dependable savings come from a verified used unit, a correctly sized system, and a quote that includes commissioning. Avoid paying a deposit until the seller and installer have confirmed fuel compatibility, local approval, and the condition of the major components.