A Central Boiler CL 6048 typically costs about $12,000-$17,000 for the furnace, while a complete installation commonly reaches $18,000-$30,000. The final price depends on dealer availability, delivery distance, insulated underground pipe, electrical work, chimney setup, and how much of the installation the homeowner completes.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| CL 6048 furnace | $12,000 | $14,500 | $17,000 | New unit, if available through a dealer |
| Installed system | $18,000 | $24,000 | $30,000 | Furnace, standard hookup, and typical site work |
| Underground insulated pipe | $20 per ft | $35 per ft | $55 per ft | Pipe and fittings; excavation may cost extra |
| Used CL 6048 | $4,000 | $7,000 | $10,000 | Condition, age, accessories, and removal affect value |
Assumptions: U.S. dollars, standard residential installation, normal equipment access, and no major heating-system upgrades.
What a CL 6048 furnace and full installation usually cost
Budget roughly $18,000-$30,000 for a professionally installed CL 6048 system. A furnace-only quote may be around $12,000-$17,000, but that price does not necessarily include delivery, underground piping, wiring, labor, or connection to the home’s existing hydronic system. The CL 6048 is a large outdoor wood furnace intended for substantial heating loads; the appropriate size still depends on insulation, climate, building layout, and domestic hot-water demand.
The price range assumes a new or dealer-supplied unit, a typical residential site, standard insulated supply-and-return lines, and ordinary plumbing and electrical connections. A long pipe run, difficult excavation, a remote delivery location, or extensive indoor modifications can push the project above $30,000. Some areas may have limited access to this model, so buyers should confirm whether a quote covers a CL 6048 specifically or a different Central Boiler model.
Used units can appear less expensive at $4,000-$10,000, but the listing price is only part of the purchase. Hauling, inspection, repairs, replacement parts, and reconnecting the furnace may add several thousand dollars. Before treating a used price as a bargain, confirm the model plate, age, condition, included controls, and whether the installation will meet local requirements.
How furnace, pipe, and hookup charges build the quote
Installation quotes vary in what they include. Ask the contractor to separate equipment, materials, labor, site work, and any disposal or permit charge. The following ranges are typical planning figures, not a fixed manufacturer price list; dealer pricing and local labor rates can differ.
| Quote item | Low | Average | High | What changes the charge |
|---|---|---|---|---|
| CL 6048 furnace | $12,000 | $14,500 | $17,000 | Availability, dealer pricing, controls, and included parts |
| Insulated underground pipe | $20 per ft | $35 per ft | $55 per ft | Pipe type, diameter, fittings, and route length |
| Excavation and backfill | $1,000 | $2,500 | $5,000 | Soil, obstacles, trench depth, and machine access |
| Plumbing and system connection | $1,500 | $3,500 | $6,000 | Heat exchanger, pumps, valves, and existing boiler layout |
| Electrical and controls | $500 | $1,200 | $2,500 | Distance to power, circuit needs, and control wiring |
| Delivery and placement | $300 | $800 | $1,800 | Travel distance, unloading equipment, and access |
The figures are components of a project estimate, not amounts that should automatically be added at the highest value. For example, a contractor may package delivery, excavation, and pipe installation into one installed price. Confirm whether the quote includes the furnace pad, startup, water treatment, fittings, and connection to every building the system is intended to heat.
Labor may be quoted as a project amount or based on crew time. A rough planning range for plumbing or mechanical labor is $75-$125 per hour per technician, with site work sometimes billed separately. A two-person crew working 16-24 hours at those rates would represent about $2,400-$6,000 in labor before specialized equipment, travel, or subcontracted excavation.
Which pipe distance and heating load change the CL 6048 price?
Pipe length and building heat demand are two of the most important cost variables. A 50-foot trench can require about $1,000-$2,750 in pipe materials at $20-$55 per foot, while a 150-foot run can reach $3,000-$8,250 before excavation. Long routes can also increase heat loss and may require additional fittings or a carefully planned pipe size.
Capacity planning affects the system design as well as the equipment decision. The CL 6048 is commonly marketed for large homes and other buildings, but the square footage a furnace can heat is not a guaranteed capacity figure. A well-insulated 3,500-square-foot home in a moderate climate can have a very different load from a drafty 5,000-square-foot home in a cold region. Get a heat-loss calculation rather than relying on floor area alone.
Multiple buildings or high domestic-hot-water use may require more distribution equipment, pumps, or heat exchangers. A detached shop 100 feet from the house, for example, adds another supply route or branch and can increase both trenching and plumbing costs. Ask the installer to specify whether the quoted system serves one building, several buildings, or both space heating and hot water.
Site conditions can change excavation charges sharply. Rocky soil, tree roots, pavement, steep grades, or a narrow route for machinery may add $500-$3,000 or more. A trench crossing a driveway may need restoration, and a long distance from the delivery truck to the furnace pad can require extra handling equipment.
How much do CL 6048 installers charge for labor and site work?
For a straightforward replacement or nearby installation, labor and site work together may fall around $3,000-$7,000. A new installation with a long trench, extensive indoor piping, or complicated controls can push those charges to $8,000-$12,000. Labor estimates should list what the crew will perform, rather than using a single “installation” line that leaves scope unclear.
Outdoor furnace placement, water-line connections, electrical work, startup, and indoor heat-system modifications may involve different trades. The furnace itself may be set in a day, but a complete project can take two to five working days once excavation, pipe installation, hookups, and testing are included. Weather, frozen ground, permitting, and contractor schedules can extend the calendar time.
Ask whether the installer includes a concrete pad or other approved base, trench backfill, electrical disconnect, circulation pumps, water treatment, and system commissioning. The contractor should also identify who is responsible for connecting the unit to the home’s existing boiler, forced-air system, or other heat source. A detailed scope prevents a low initial quote from turning into a series of unplanned charges.
What can a used CL 6048 cost after hauling and repairs?
A used CL 6048 may be listed for $4,000-$10,000, with a lower price often reflecting age, uncertain maintenance, missing parts, or a need for repairs. Hauling and placement can add $500-$2,500 depending on distance and equipment access. Inspection, plumbing parts, electrical controls, and repairs may add another $500-$4,000 or more if the unit has corrosion, leaks, or damaged components.
Request clear photos of the firebox, water jacket, door seals, controls, and serial or model plate. Ask whether the seller can demonstrate operation and provide maintenance records. A professional inspection before purchase is especially valuable when the furnace has been stored outdoors or disconnected for a long period.
Compare the purchase and repair total with a dealer’s price for a new unit or another available model. A used furnace does not automatically include usable pumps, valves, insulated pipe, or the accessories needed for the new site. Also confirm that a contractor is willing to install the specific used unit; some installers limit their work to equipment they supply.
How do Midwest, Northeast, and rural delivery quotes compare?
Regional differences often show up in labor, delivery, and contractor availability rather than a fixed national furnace price. In rural areas, a project may be 5%-15% below an urban quote when excavation access is easy and local crews are available. That advantage can disappear if the installer must travel a long distance or haul the furnace across difficult terrain.
In the Northeast and Upper Midwest, cold-weather demand and a short installation season can make labor quotes about 5%-20% higher than a comparable job in a lower-cost market. Urban and suburban projects may add 10%-25% for higher labor rates, restricted equipment access, utility coordination, or pavement restoration. These are planning comparisons, not guaranteed regional premiums.
Delivery should be priced by the supplier or installer rather than assumed to be included. A nearby delivery may cost a few hundred dollars, while a remote site, special unloading needs, or difficult placement can exceed $1,500. Compare quotes using the same delivery address, trench distance, building connections, and included equipment so the regional price comparison is meaningful.
Which permits and code checks can add to the project bill?
Permit costs depend on the town, county, and state. A straightforward building or mechanical permit may run $50-$500, while inspections, electrical permits, or additional documentation can bring the total to $500-$1,000 or more. Some jurisdictions also regulate outdoor wood-fired boilers through setback, stack-height, smoke, or fuel rules.
Before paying a deposit, ask the local building department whether the CL 6048 is allowed at the proposed location and what inspections are required. Setback or chimney changes can affect the furnace pad, pipe route, or installation labor. A contractor should identify required permits in writing and clarify whether permit fees are included or billed separately.
Homeowners should also check whether local air-quality rules or utility programs affect eligibility. Rebates and incentives are not universal, and older equipment or a wood-fired system may not qualify. Do not reduce the budget based on an incentive until the program confirms that this model and installation meet its current requirements.
How can buyers lower the installed CL 6048 price safely?
The most controllable savings usually come from reducing trench length and keeping the installation scope simple. Place the furnace where it can serve the intended buildings with the shortest practical insulated-pipe route, while preserving required clearances and access for loading and maintenance. Every 25 feet avoided could save roughly $500-$1,375 in pipe materials alone, plus some excavation cost.
Prepare the site before the crew arrives when the installer permits it. Clearing brush, marking the route, and arranging access for excavation equipment may reduce labor or machine time. Do not dig near utilities without locating them first, and do not perform electrical or plumbing work unless the contractor and local rules allow it.
Compare at least three itemized quotes using the same scope. Check the model, pipe length and type, number of pumps, indoor connections, electrical work, excavation, delivery, startup, and warranty terms. A quote that is $2,000 lower may exclude a heat exchanger, water treatment, or driveway restoration, so compare the final installed totals rather than the furnace line alone.
Choose accessories based on the actual heating layout, not a broad upgrade package. If the home already has suitable hydronic equipment, some components may be reusable after inspection. Conversely, reusing worn pumps or undersized lines can create operating problems and future repair expense. For a used furnace, include inspection and hauling costs before deciding that repair is cheaper than buying new equipment.