Precision Boilers – a division of Thermon

Precision Boilers supports commercial and industrial facilities with a complete portfolio of steam, hot water, and boiler room equipment. In addition to high-efficiency electric systems, the lineup includes fuel-fired options, electrode boilers, water heaters, and packaged accessories designed to simplify installation and support long-term reliability.

• Steam Boilers
• Hot Water Boilers
• Electrode Boilers
• Water Heaters
• Super Heaters
• Ancillary Equipment

What we provide

• Electric hot water and steam equipment, including commercial electric boilers and electric steam boiler solutions
• Steam generation equipment for demanding facilities, including industrial electric steam generator configurations
• Fuel-fired boiler options for sites that require them
• High-capacity systems, including large electric boilers and large industrial electric steam boilers
• Packaged hot water solutions, including commercial electric water boiler systems
• Boiler room and water quality support equipment, including blowdown systems, feedwater/condensate packages, deaerators, and chemical feed storage
• Ancillary and storage equipment such as storage tanks, surge tanks, and superheaters to support stable operation

FPH Vertical Firetube Water Boiler
Fuel-Fired Hot Water Boilers

The FPH Vertical Firetube Hot Water Boiler combines traditional firetube design with a vertical configuration and underfired power burner, offering a simple 4-piece design with several advantages. Its larger water volume enhances efficiency by reducing pressure drop and cycling, while standard “off-the-shelf” burners ensure reliable performance. Built on a proven, durable firetube design, it delivers dependable and long-lasting operation.

• Steam from: 6-100 BHP
• Capacities: 210-3,440 PPH
• BTUs/hr: 330-4,100 MBH (OUTPUT)
• Pressures: 15-150 PSIG

FPS Vertical Firetube Steam Boiler
Fuel-Fired Steam Boilers

The FPS is a rugged, packaged vertical steam boiler built around a proven vertical fire tube boiler design for reliable performance in demanding commercial and industrial environments. This vertical fire tube boiler configuration supports efficient heat transfer and service-friendly maintenance, with a durable cabinet and structural base designed for long life. As a compact vertical boiler, the FPS is well-suited for facilities that need dependable steam in a small footprint, and it can be specified with a range of standard trim and optional accessories to match site requirements. Many customers choose this vertical boiler for straightforward installation, consistent operation, and a flexible set of factory-installed options.

• Steam from: 6-100 BHP
• Capacities: 210-3,440 PPH
• BTUs/hr: 330-4,100 MBH (OUTPUT)
• Pressures: 15-150 PSIG

FPW Vertical Firetube Water Heater
Fuel-Fired Water Heaters

The FPW offers superior heat transfer and durability with its ASME Code construction and seamless steel firetubes with copper overlay for maximum efficiency. Its robust 4-piece design, high-density insulation, and versatile burner options provide flexibility and energy efficiency, while precise Honeywell controls ensure reliable operation. Safety features like the “Precision Seal” lining, solenoid valves, and air proving switch enhance safe use, and maintenance is simplified with multiple inspection openings and a full port drain valve.

• Hot Water from: 9.5-73.5
• Pressures: 125 & 150 PSI

ISH Instantaneous Superheater
Superheaters

The ISH Instantaneous Superheater delivers superheated steam on demand for high-temperature processes or power generation. Custom designed for any steam reheat need, it uses SCR control for precise temperature modulation and energy efficiency. Its electric design requires no venting or combustion air, simplifying installation while providing reliable, clean superheated steam.

ST Electric Steam Boiler

The ST Electric Steam Boiler is a packaged electric resistance steam boiler designed for reliable, on-demand steam in commercial and industrial facilities. Built to stringent industry standards, it supports a wide operating range and uses staged element control to maintain set pressure efficiently across varying loads. For added flexibility, the ST can be configured with factory-installed options, and an optional SCR package provides up to 100:1 turndown to closely follow process demand.

• Steam from 1.5–400 BHP
• Capacities 51–13,800 PPH
• kW Rating 15–4,000 kW
• Pressures 15–300 PSI
• Voltages 208, 240, 380, 415, 480, 600

Thermon’s Minke™ Electric Hot Water Boiler from the Precision Boiler family
Electric Hot Water Boilers

Experience the next evolution in heating with the Minke boiler product. The Minke boiler takes the proven performance and legendary reliability of the Precision Boilers custom PCW models and packages it into standardized, compact sizes with pre-approved components. This innovative approach allows you to specify, order, and install a reliable electric hot water boiler faster than ever before, making it the smart choice for projects on a tighter timeline.

Standard Features:

• BACnet/MODbus Communications
• Precision Perfect Panel
• CSD-1 Compliant (where required)
• 100kA SCCR
• BMS Dry Contact Package
• Pre-Registered CRN’s for all Provinces
• Split-Based Design
• Flanged Connections

SP-DA Spray Deaerator
Feedwater & Deaerators

The SP-DA Spray-Type Deaerator removes oxygen and dissolved gases from boiler feedwater using a sparging process. Designed for effective deaeration in a compact footprint, it reduces corrosion risks and improves boiler longevity. Configurable with various tank sizes and options, the SP-DA integrates seamlessly with feedwater systems to ensure clean, treated water for optimal boiler performance.

• Oxygen removal to: 0.005 cc/liter or less
• Carbon dioxide removal: 100%
• Capacity range: 5,000 – 300,000 PPH
• Voltages: 208, 240, 380, 415, 480
• Turn-down ratio: 33:1
• Storage capacity: 10 minutes minimum
• Configuration: 100% makeup or 30% makeup / 70% condensate
• Design: Internal stainless steel vent condenser and spray valves
• Vessels rated for 50 PSIG with 1/16 in. corrosion allowance (ASME Code compliant)

CF Condensate Return/Boiler Feed System
Feedwater & Deaerators

The CF Boiler Feed System manages condensate return and maintains water supply to boilers or deaerators using a ¼” carbon steel receiver tank. Configurable with single or multiple pumps and controls, it handles surges and adds make-up water via float-operated valves. Optional features include alarms, sparge-tube preheaters, and specialized linings. Pumps are carefully matched for efficient, reliable operation.

HWS Electric Water Heater
Electric Water Heaters

The HWS Electric Water Heater is ideal for industrial, commercial, and institutional processes requiring large volumes of hot water at specific temperatures. With a wide range of storage capacities and both vertical and horizontal configurations, it offers installation flexibility. Designed for various pressure options, it features efficient heating with Incoloy-sheathed elements and ensures a continuous hot water supply. Customizable options and complete factory-packaged units make it a reliable, easy-to-install solution for demanding applications.

• Pressures: 125 & 150 PSI
• Voltages: 208, 240, 380, 415, 480

HVJ Jet Type Electrode Boiler
Electrode Boilers

The Electrode boiler delivers high-efficiency, high-quality steam through its unique design, using electricity as a clean, efficient, and controllable fuel source. It converts nearly all energy input into steam with 99% efficiency, offering output control from 0-100% without the turndown limitations or inefficiencies found in fossil-fired boilers. The boiler produces zero emissions and requires no stacks. Its Jet-Flo® technology eliminates tube failures by transferring heat directly in the water within the insulated pressure vessel, ensuring 99.95% steam purity.

• Steam from: 800KW – 50,000KW
• Capacities: (2,700 pph – 167,000 pph)
• Operating pressure from 100 – 405 psi
• Voltages from: 4.16kV – 15kV

PCW Compact Electric Water Boiler
Electric Hot Water Boilers

The PCW is designed for convenience and efficiency and is ideal for new installations or retrofitting existing systems. It fits through most doorways, requires minimal floor space, and eliminates the need for horizontal clearance during element removal. Key features include a space-saving design that reduces construction costs, robust construction with a heavy-duty cabinet and flanged steel base, customizable options for specific design needs, and individual flanged U-tube heating elements for quick replacement. The boiler also offers precise temperature control and easy installation in both new and existing piping systems.

• Hot Water from: 1.5-84.2 BHP
• kW Rating: 15-842 KW
• Pressures: 30-200 PSIG
• Voltages: 208, 240, 308, 415, 480, 600

HW Electric Hot Water Boiler
Electric Hot Water Boilers

The HW Electric Boiler delivers powerful, customizable heating with precise temperature control, making it ideal for a wide range of applications. Built for durability, it features a heavy-duty 16-gauge cabinet and structural steel base, while its sensor in the outlet pipe ensures accurate temperature regulation. Customizable options allow for tailored designs, and the spacious control cabinets offer easy access with color-coded wiring. Efficient, long-lasting heating elements, made with corrosion-resistant Incoloy sheath and nickel-chromium wire, further enhance performance, available in 1-phase and 3-phase configurations.

• Hot Water from: 20-421 BHP
• BTUs/hr: 682-14,371 MBH
• kW Rating: 200-4,212 KW
• Pressures: 30-200 PSIG
• Voltages: 208, 240, 308, 415, 480, 600

PHWS Indirect Fired Water Heater
Fuel-Fired Water Heaters

The PHWS handles both steam and hot water as heating mediums. This skid-mounted unit is fully automatic and factory insulated for optimal heat retention and energy efficiency. It ensures a steady supply of hot water with high recovery rates, making it ideal for peak demand periods. Key features include a copper tube bundle for durability, indirect heating for clean operation, and a pre-piped design for easy installation. With versatile heating options and dual-section functionality, the PHWS offers reliable performance and flexibility.

• Hot Water from: 9.5-73.5
• Pressures: 125 & 150 PSI

STH Electric High-Pressure Steam Boiler
Electric Steam Boilers

The STH High Pressure Steam Boiler provides process steam above 200 psi in a compact footprint. Custom knock-down designs fit tight spaces, while optional SCR control enables precise modulation and energy savings. The boiler requires no vent stack or combustion air louvers, reducing installation time and cost. Step circuit switches allow easy control of firing rates, ideal for facilities with variable electric loads.

• Steam from: 1.5-180 BHP
• Capacities: 51-6,000 PPH
• kW Rating: 15-1,800 KW
• Pressures: 205-2,500 PSI
• Voltages: 208, 240, 308, 415, 480, 600

BD Blowdown Tank
Blowdown Tanks

The BD Blowdown Tank collects and cools boiler blowdown water before releasing it below 140°F. With capacities from 30 to 1,200 gallons and a 50 psi design pressure, it safely vents flash steam while holding effluent until cooled. The tank’s vent limits pressure to 5 psi, and recovered steam can preheat boiler feedwater, enhancing system efficiency and operational safety.

BDS Blowdown Separator
Blowdown Tanks

The Precision Boilers Blowdown Separator vents flash steam from boiler blowdown and instantly cools effluent using a temperature-controlled mixing valve. Designed for limited space, it discharges effluent below 140°F without storage. Available in 10 to 50 gallons and rated for 50 psi, it features a vent to limit pressure buildup. Heat recovery options help preheat boiler feedwater, improving efficiency while ensuring safe discharge.

TR-DA Tray Deaerator
Feedwater & Deaerators

The TR-DA Tray-Type Deaerator provides efficient removal of oxygen and non-condensable gases through multiple tray stages. Its design ensures thorough deaeration to protect boiler systems from corrosion and extends equipment life. Available with customizable capacity and pressure ratings, the TR-DA fits a variety of applications requiring high-quality treated feedwater.

• Oxygen removal to: 0.005 cc/liter or less
• Carbon dioxide removal: 100%
• Capacity range: 5,000 – 500,000 PPH
• Voltages: 208, 240, 380, 415, 480
• Turn-down ratio: 20:1
• Storage capacity: 10 minutes minimum
• Configuration: 100% makeup or variable condensate return
• Design: Internal stainless steel vent condenser and spray valves
• Vessels rated for 50 PSIG with 1/16 in. corrosion allowance (ASME Code compliant)

Surge Tanks
Feedwater & Deaerators

Precision Boilers Surge Tanks provide additional condensate storage to balance rapid load changes in steam systems. Available in various sizes and configurations, they prevent overflow and pump short-cycling by temporarily holding excess condensate. When paired with correctly sized feed pumps, surge tanks enhance system stability, protect equipment, and improve overall boiler feed performance.

• Steam from: Support 15-720 BHP
• Voltages: 208, 240, 380, 415, 480

Storage Tanks
Storage Tanks

Precision Boilers designs and fabricates storage and buffer tanks to add capacity, stabilize temperatures, and support peak-load periods in heating and cooling systems. These precision tanks can be specified as a boiler storage tank in central plants and mechanical rooms, with vertical and horizontal configurations available to fit your footprint and performance requirements.

Storage tanks are available in both 125 psi (400 gal. and larger) and 150 psi design pressures. Both can be ordered in either horizontal or vertical configurations. All models are available unlined or lined with either Precision Seal (PS) or Aluminum Silicate Cement (C), both of which are NSF-61 compliant. Storage tanks can be configured with a baffle mounted in the center of the tank to create a buffer tank or a chilled water tank.

All of our storage tanks can be furnished with insulation and jacketing for heat loss prevention and maximum thermal efficiency. A properly insulated tank may reduce the size of the storage capacity required to meet the recovery and volume demands, lowering the overall cost.

Chem Feed Storage Tanks
Storage Tanks

Custom and Standard Chemical Feed Storage Tanks for all applications.  Call us with your requirements.