Used Boilers for Sale
Used boilers are industrial systems designed to generate steam or hot fluids for heating, processing, and power applications. These systems are widely used across manufacturing, chemical processing, food production, and energy industries where consistent thermal energy is required. Boilers play a critical role in operations such as steam generation, heat transfer, and process heating. Aaron Equipment offers used boilers for sale in a variety of configurations and capacities to meet specific process requirements and facility demands. Browse available inventory below or explore boiler types to find equipment aligned with your operation.
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53466002Unused RBI Dominator DW1500 Two-Stage Water Heater – 1500 MBH, Natural Gas
Unused- RBI Dominator Two Stage Water Heater, Model DW1500. Natural Gas; 1500 MBH, 440 kW input; 1277 MBH, 374 kW output; 1530 GPH; Finned copper tube heat exchanger, ASME 160# max WP, 2 pass; Mounted & wired flow switch; FM compliant gas train; Sealed combustion chamber;Mounted ASME relief valve (50# Boilers, 125# Water Heaters); Pump delay control; Factory fired tested; Barometric damper on Cat. 1 applications; 85.1% efficient; Low NOx SCAQMD Rule 1146.2 certified; Uginox alloy stainless steel burners; Bronze headers water heaters; Cast iron headers boilers; 2 or 4-Stage firing modes; Category I & III venting. Serial # 052291036, CRN # 1574.9CL, National Board # 55181. Built 2022.
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54303003Energy Fabrication 30 MMBTU Frac Heating Unit Propane Fired
Used Energy Fabrication Model TFH30P indirect-fired frac heating unit with a heating capacity of 30 MMBTU per hour. Unit is propane fired and identified by serial number EFH30P-5000-274. Possible applications include heating water, brine, fracturing fluids, process liquids, and other suitable industrial or oilfield fluids.
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54383002Used General Boiler Electric Steam Boiler 504 kW / 1,773 lbs/ hour. – 480V Industrial Boiler
Used General Boiler, Electric, Series L, Model GE504-CS-480-3-H-COMBO. Output: 504 kW / 1,773 lbs/ hour. Rated 15 psi, Power: 480V, 3-phase, 607 amps, Dual feed pumps, Carbon Steet construction. ASME H certified. Control panel. Unitized on common base. S/n 3148. Yr. 2013
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53968001AJAX A200 Series Boiler for Sale – 50 HP, 90% Thermal Efficiency – 2,000,000 BTU
Used AJAX Natural Gas Boiler, Atlas A200 Series, Model: Atlas A200. Heating Surface: 42.4 sq. ft. Maximum Input: 2,000,000 BTU/hr, Output: 1,800,000 BTU/hr. Thermal Efficiency: 90%, Burner Output: 1,307,692 BTU/hr, Horsepower: 50 HP, Gross Input Pressure: 4.0" W.C. Max Allowable Working Pressure (MAWP): 160 PSIG. Honeywell Sola Hydronic control, Honeywell HMI. Voltage: 120V, 60Hz, 1 Phase, Full Load Amps: 5A, Control Voltage: 24V. Serial# 71628.
MFR: Ajax
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54210001Used Allied Engineering Super Hot Fire Tube Boiler, Model AAE-3000-N-M | 3M BTU/hr | Natural Gas | 160 PSI | BC-1 Controller | Skid Mounted
Used- Allied Engineering Super Hot AAE Series Fire Tube Boiler, Model AAE-3000-N-M. Natural gas, High/Low fire. 3M BTU/hr input, 1.2M BTU/hr output. Minimal relief valve pressure 2400 MBH. 160 psi maximum water pressure, 250 degrees F maximum temperature, 227 square feet heating surface. Skid mounted. Includes: Electronic Ignition, Stainless steel Burners, Gas Valve, Redundant Gas Valve, BC-1 Microcontroller, Operating Aquastat, Safety High Limit Aquastat, Temperature / Pressure Gauge, A.S.M.E. Pressure Relief Valve 30 p.s.i., Drain Valve, Draft Hood, Transformer, Control Panel Enclosure, Main On/Off Switch with Indicator Light. 60hz, 120 volt. Shack available. Serial # 7161. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: Allied Engineering
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54545001Unused Babcock & Wilcox FM 103-79 Natural Gas Boiler – 80,000 LB/HR Saturated Steam – ASME – Built 2022
Unused Babcock & Wilcox FM 103-79 Natural Gas Boiler 80,000 LB/HR Saturated Steam ASME Built 2022. Rated 80,000 lbs/hour (saturated steam). 175 psig at main steam outlet nozzle design pressure. 227 degrees F at economizer inlet feedwater temp. ASME Stamped, Hydrostatic shop tested.
MFR: Babcock & Wilcox
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54401001Used Cleaver Brooks Steam Boiler, Model CB-100-70-150ST. Rated 2,343,000 BTU/hour. 150 PSI max. working pressure. 70 HP. 3/60/230V. Serial# T3376-1-1, Built 2012.
Used- Cleaver Brooks Steam Boiler, Model CB-100-70-150ST. Rated 2,343,000 BTU/hour. 150 PSI max. working pressure. 70 HP. 3/60/230V. Serial# T3376-1-1, Built 2012.
MFR: Cleaver Brooks
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47147028Unused Cleaver-Brooks CB 700-600 Natural Gas Boiler – 600 HP, 150 PSI (2023)
Unused- Cleaver Brooks Boiler, Model CB 700-600. Natural gas fueled. 600 HP. 3,000 square feet heating surface. 10.5 kg/cm2 design pressure. 150 PSI maximum working pressure. 6,327,000 kcal/hr inlet. 98 cm H20 minimum gas inlet pressure. Serial# MX-8711. Built 2023.
MFR: Cleaver Brooks
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54478001Unused Fulton VSRT-125 Steam Boiler | 125 HP Vertical Tubeless High Efficiency Boiler
Installed, tested, and not used afterward ******* Used Fulton VSRT-125 Vertical Tubeless Steam Boiler rated at 125 boiler horsepower with a steam output of approximately 4,300 lb./HR and a fuel input of about 5.0 MMBTU/hr. 193.2 sq/ft heating surface. It utilizes a two-pass vertical design with a spiral rib heat exchanger and a fully water-backed pressure vessel with no refractory. Typical thermal efficiency is in the 8286% range with steam quality =99.75%. The unit is equipped with a fully modulating, linkage less burner capable of up to a 10:1 turndown ratio and is configured for natural gas, propane, or dual fuel, with NOx emissions typically below 20 ppm depending on setup. Maximum operating pressure is typically rated up to 150 PSIG (design pressure may vary by unit). Approximate dimensions are 100" deep, 75" wide, and 140" high, with an operating weight approximately 19,000 lbs. Serial# F10116417A, National Board# 11514, built 2024.
MFR: Fulton
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54521001Used Lochinvar Crest Condensing Boiler Model FBN1001 – Natural Gas High-Efficiency Boiler
Used Lochinvar Crest Condensing Boiler Model FBN1001 Natural Gas High-Efficiency Boiler. 960,000 btu/hr maximum output, 1,000,000 btu/hr maximum input. Fueled by natural gas. 97 square feet of heating surface. Certified 160 psi at 210 degrees F. 1/60/120V. National Board # 174312, Serial# 3115101830529.
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54521002Lochinvar Crest FBN1001 High-Efficiency Natural Gas Condensing Boiler for Commercial and Industrial Heating Applications
Lochinvar Crest FBN1001 High-Efficiency Natural Gas Condensing Boiler for Commercial and Industrial Heating Applications. 960,000 btu/hr maximum output, 1,000,000 btu/hr maximum input. Fueled by natural gas. 97 square feet of heating surface. Certified 160 psi at 210 degrees F. 1/60/120V. National Board # 150398, Serial# 3115101830525.
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54419001Used Lochinvar Crest FBN1001 Condensing Boiler – 1,000,000 BTU High-Efficiency Natural Gas Heating System
Used- Lochinvar Crest Condensing Boiler, Model FBN 1001. Natural gas fueled. 114.7 square feet of heating surface. 999,999 BTU/hr max input, 960,000 output. 160 psi max allowable working pressure. 210 degrees F max water temperature. 1 phase/60 Hz/120V. National Board #323810, built 2018. Overall dimensions: 30'' Width x 56.5'' Length x 78'' Tall.
Types of Used Boilers Available
Aaron Equipment offers a range of used boilers designed to support steam generation, thermal fluid heating, and process heating applications:
Fire Tube Boilers – Boilers that pass hot gases through tubes surrounded by water, ideal for low to medium pressure steam applications.
Hot Oil Boilers – Thermal fluid heaters designed to deliver high-temperature heat without the need for high-pressure steam systems.
Water Tube Boilers – High-capacity boilers where water flows through tubes heated externally, suitable for high-pressure and high-output operations.
Boiler Applications & Industry Uses
Used boilers are essential across industries where steam or thermal energy is required for processing, heating, or power generation. Common applications include:
Chemical Processing: Providing heat for reactions, distillation, and processing systems
Food & Beverage: Steam generation for cooking, sterilization, and sanitation processes
Pharmaceutical Manufacturing: Controlled heating for production and sterilization
Energy & Utilities: Power generation and facility-wide heating systems
Pulp & Paper: Steam supply for drying and processing operations
Boilers are critical for maintaining consistent temperatures, improving process efficiency, and supporting continuous production.
Used Boiler Buying Considerations
When selecting a used boiler, it is important to evaluate both operational requirements and equipment condition:
Steam or Heat Requirements: Determine pressure, temperature, and output needs
Boiler Type: Fire tube vs. water tube vs. thermal fluid based on application
Fuel Type: Natural gas, oil, or alternative fuels depending on facility setup
Capacity & Output: Match system size with production demands
Efficiency & Emissions: Evaluate energy performance and regulatory compliance
Condition & Inspection History: Review maintenance records, certifications, and prior use
Why Buy Used Boilers
Buying used boilers provides a cost-effective way to install or expand thermal systems without the long lead times associated with new equipment. Used boilers offer proven performance and are often available for immediate shipment, helping facilities maintain uptime and reduce project timelines.
Aaron Equipment sources high-quality boilers from leading manufacturers, providing reliable solutions for industrial heating and steam generation needs.
Sell Your Used Boilers
Aaron Equipment actively purchases surplus boilers, including fire tube, water tube, and hot oil systems. Whether upgrading equipment or decommissioning a facility, our team can help maximize value.
An industrial boiler is a system that generates steam or hot fluids by heating water or thermal oil. It is used in industrial processes for heating, power generation, and steam applications.
Common types of used boilers include fire tube boilers, water tube boilers, and hot oil (thermal fluid) systems. Each type is designed for different pressure levels, capacities, and heating requirements.
Choosing the right boiler depends on required steam pressure, temperature, fuel type, and production demand. Evaluating system capacity and application requirements is critical.
Yes. Used boilers are built for long service life and can remain highly reliable when properly maintained, inspected, and certified prior to purchase.
Industrial boilers are used in chemical processing, food production, pharmaceuticals, energy, and manufacturing industries where steam or heat is required.