Used Industrial Boilers for Sale in Florida

A used industrial boiler is one of the biggest capital savings on the secondary market — often 50 percent or more off new — but it's also the piece of equipment where a bad buy hurts the most, because you're purchasing a pressure vessel. Get the vessel, the paperwork, and the burner right and you've got a workhorse that runs for decades. Get them wrong and you've bought a code violation. We recover and resell boilers off decommissioned plants across Florida, and here's the straight version.

Firetube vs watertube: know which you need

Two families cover most industrial jobs, and they don't interchange:

• Firetube boilers. Hot combustion gases run through tubes surrounded by water. Simple, rugged, and dominant in the 15 to 800 HP range for heating and process steam up to about 250 PSI. Cleaver-Brooks CB, Fulton, Hurst, and Burnham are the names here.
• Watertube boilers. Water runs through the tubes, gases outside. Built for higher pressures and larger steam demands — the choice above roughly 800 HP or for high-pressure process steam.

Most Florida commercial and light-industrial buyers are in firetube territory. Know your steam pressure, capacity (HP or lbs/hr), and fuel before you shop.

What used boilers cost

Pricing tracks horsepower, pressure rating, fuel type, and burner condition. Working ranges:

• Small (15 to 100 HP): roughly 6,000 to 30,000 dollars.
• Mid-size (150 to 400 HP): roughly 25,000 to 90,000 dollars.
• Large (500 to 800-plus HP): 80,000 to 250,000 dollars.

A well-maintained Cleaver-Brooks firetube holds value strongly because parts and burner support are everywhere. Fulton is the go-to for compact and vertical units. For who's active on the resale side, see who buys used industrial boilers.

The pressure vessel is everything

This is the check that separates a boiler buy from any other used-equipment buy. You're buying a code-stamped pressure vessel, and its integrity is non-negotiable.

• ASME stamp and National Board number. The vessel should carry an ASME "S" stamp and a National Board registration. No stamp, no legitimate boiler — walk away.
• Manufacturer's data report (form U-1 / equivalent). Confirms the vessel's design pressure and construction. This paperwork travels with the vessel and you want it.
• Tube and sheet condition. Firetube boilers fail at the tubes and tube sheets. Inspect for pitting, cracking around tube ends, and prior tube replacement. A retube on a 200 HP boiler is a five-figure job.
• Prior jurisdiction inspection. A recent inspection certificate tells you the vessel passed a real authority's look. In Florida, boilers fall under state boiler safety rules and need a valid certificate to operate — build that into your plan.

The same "get it in writing" discipline we apply to chiller testing matters even more on a boiler, because the stakes are a pressure vessel.

Burner, controls, and fuel

The vessel can be perfect and the boiler still be a poor buy if the burner is shot or wrong for your fuel.

• Fuel type. Natural gas, propane, No. 2 oil, or dual-fuel. Florida is largely gas and propane; confirm the burner matches your available fuel and gas pressure.
• Burner condition. Inspect the burner, blower, gas train, and flame safeguard (Honeywell/Fireye) control. A modern burner-management system is worth real money; an obsolete one may be hard to source parts for.
• Efficiency and turndown. Newer burners with high turndown save fuel on variable loads. An older on/off burner is cheaper but less efficient.
• Controls and low-water cutoff. The low-water cutoff is a life-safety device — confirm it's present, correct, and functional.

Florida-specific factors

• Backup and process demand. Florida's industrial base — food processing, chemicals, hospitals, laundries — runs steam year-round, so there's steady demand and steady supply from plant turnover. When a plant shuts down, the boiler comes out whole, which is exactly the equipment we recover during a plant cleanup.
• Coastal corrosion. Salt air attacks jackets, breeching, and external piping. Inspect the exterior and fireside on any coastal-staged unit.
• Rigging. Boilers are dense and heavy — a 300 HP firetube can run 15,000 to 25,000 pounds. Budget the move like a chiller; see our delivery and rigging guide.
• Sales tax. Applies to the purchase unless a manufacturing exemption fits — confirm with your accountant.

Sizing and turndown for a Florida load

Boiler sizing in Florida has a wrinkle most of the country doesn't share: outside of process steam, the space-heating season is short and mild, so a boiler sized purely on peak heating is oversized most of the year. An oversized boiler short-cycles, wastes fuel, and wears its burner and controls prematurely. If your load is mostly process steam — a laundry, a food plant, a hospital's sterilization and kitchen loads — size to that steady process demand, not a worst-case winter that barely happens here. A modern burner with high turndown (5-to-1 or better) lets one boiler follow a swinging load without cycling. Where the load varies widely, two smaller boilers staged together often beat one large unit for efficiency and redundancy — and the used market makes running a pair affordable.

Where the good boilers come from

The best used boilers come off decommissioned plants and facility upgrades — units that ran on a maintenance and inspection program until the day the plant closed, with paperwork intact. Those beat an auction pull with no data report and no inspection history every time.

Bottom line

A used industrial boiler can cut your capital cost in half or more, but the buy lives and dies on the pressure vessel: ASME stamp, National Board number, data report, sound tubes, and a valid jurisdiction inspection. Match the burner to your fuel, confirm the controls and low-water cutoff, and budget the rigging like the dense piece of iron it is.

We recover and resell code-stamped boilers off decommissioned Florida plants, with paperwork. Tell us your capacity, pressure, and fuel and we'll match a unit — start here or reach out directly.