A Buderus Logano G115 oil boiler typically costs about $4,000-$7,500 for the boiler and compatible burner, while a full replacement commonly runs $8,000-$15,000 installed. Final pricing depends on boiler size, chimney and piping work, local labor rates, and whether the equipment is new old stock or a used unit.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Boiler and burner | $4,000 | $5,750 | $7,500 | New old stock or specialty-sourced equipment |
| Installed replacement | $8,000 | $11,500 | $15,000 | Standard swap with routine connections |
| Boiler labor | $1,500 | $2,500 | $4,000 | Removal, setting, piping, and startup |
| Annual service | $175 | $275 | $400 | Cleaning and oil-burner tune-up |
What a Logano G115 boiler replacement usually costs
A straightforward replacement in an existing hydronic system is commonly $8,000-$15,000, with many quotes near $11,500. That assumes a compatible boiler and oil burner, standard access, reuse of serviceable zones and controls, and no major chimney or fuel-tank repairs. The installed price is driven as much by system work as by the boiler itself.
Boiler-only pricing is less predictable because the G115 is an older product and availability varies. A new old-stock unit with burner may list around $4,000-$7,500 before delivery and installation; used equipment can cost less but may lack a dependable warranty. Confirm the exact model, output, burner, and included components before comparing prices.
Assumptions: U.S. pricing, standard residential oil system, ordinary access, and no major code corrections.
How boiler, burner, and piping charges build the quote
Contractors may quote the G115 as a boiler package or separate the boiler, burner, controls, and installation. The following ranges are typical allowances, not fixed national rates; package contents and local labor can shift the totals.
| Quote component | Typical range | Pricing basis | What it covers |
|---|---|---|---|
| Boiler and oil burner | $4,000-$7,500 | Per package | Equipment, depending on model and availability |
| Installation labor | $1,500-$4,000 | $100-$175 per hour | Removal, setting, connections, and startup |
| Piping and controls | $500-$2,000 | Per job | Valves, circulator changes, wiring, and fittings |
| Chimney and vent work | $300-$2,000 | Per job | Connector, liner adjustment, or draft corrections |
| Removal and disposal | $300-$900 | Per boiler | Old equipment handling and disposal |
Ask whether the quote includes the burner, controls, removal, and startup testing. Separate line items make it easier to identify omitted work and compare bids on the same scope.
How G115 output, zones, and chimney condition change price
G115 models vary in heating output, so the correct size depends on the building’s heat loss rather than simply matching the old boiler’s rating. A contractor may charge more if a larger model requires new piping or a different burner setup. As a practical quote check, ask for the selected model and its rated output in BTU per hour.
Existing system layout also matters. A one-zone replacement with sound near-boiler piping may remain near the basic installed range. A home with three or more zones, aging circulators, or extensive control rewiring can add roughly $500-$2,500. Chimney repairs or a new liner can add $800-$3,000 when inspection finds deterioration or poor draft. Model capacity and venting condition are two important G115-specific cost checks.
Regional oil-boiler labor rates shift the installed price
Labor and contractor availability create meaningful regional differences. Quotes in high-cost Northeast and coastal metropolitan areas can run about 10%-25% above a typical national estimate. Rural markets may be 5%-15% lower, but limited access to oil-heat specialists or G115 equipment can erase that savings through travel or sourcing fees.
In colder regions, winter demand can also limit scheduling flexibility. A planned replacement booked during a contractor’s slower period may avoid rush charges, while an emergency breakdown can add $250-$1,000 for expedited service, temporary heat measures, or after-hours labor. Compare local bids with the same equipment and work scope, not just the bottom-line total.
How long G115 installation takes and what labor includes
A routine swap often takes a two-person crew about 10-16 hours, generally completed in one or two working days. The estimate may include disconnecting the old boiler, removing it, setting and leveling the replacement, reconnecting water and oil lines, wiring controls, and testing combustion and system operation.
Extra time is likely when access is tight, the boiler room needs cleanup, or piping and venting require changes. A contractor charging $100-$175 per hour may bill additional work separately, so the proposal should identify the expected crew size and whether the labor price is fixed or time-and-materials. Startup and combustion testing should be included in a complete installation quote.
Which removal, venting, and control extras add to the bill
Beyond the basic swap, budget for condition-dependent work rather than assuming every older system needs a full upgrade. Replacing a circulator may add $400-$900 per pump; new zone controls can add $300-$1,200; and a chimney liner can add $800-$3,000. Oil-line repairs, expansion tank replacement, or a new thermostat may add another $150-$700 each.
Ask whether removal and disposal are included, especially if the old boiler is difficult to reach or must be carried down narrow stairs. Permits and inspection fees vary by town, often adding about $50-$500. Have the contractor distinguish required safety or code work from optional efficiency upgrades.
Three G115 replacement quotes with different job scopes
A basic quote for a 100,000-BTU-per-hour replacement in a clear basement might include an equipment package at $5,000, 12 labor hours at $125 per hour, and $900 for piping and disposal, totaling about $7,400 before local taxes or permits. It assumes the chimney, controls, and zones can be reused.
A midrange 120,000-BTU-per-hour job might include a $5,800 package, 16 labor hours at $140 per hour, $1,300 in controls and piping, and $600 for removal, totaling about $9,940. A more involved three-zone installation with vent work could reach $13,000-$16,000 after a $2,000-$3,000 allowance for chimney and system corrections. These examples show why matching scope matters more than comparing equipment prices alone.
How to lower the G115 price without cutting necessary work
Request two or three written quotes using the same model output, burner, controls, removal, and startup requirements. If the existing circulators, zone valves, and chimney are serviceable, ask for an itemized option to reuse them rather than replacing every component automatically. Avoid paying for a larger boiler without a heat-loss calculation supporting the size.
Scheduling a planned replacement before peak heating season may improve contractor availability. If buying equipment separately, verify compatibility and warranty terms first; a lower boiler price can be offset by delivery, missing parts, or reduced labor coverage. Keep required venting, safety testing, and code work in the budget while scrutinizing optional add-ons.