ThermoFlo Watertube Boiler
High & Low Pressure Steam - High & Low Temp Hot Water - Thermal Fluid - Water Glycol
The Indeck ThermoFlo Watertube Boiler is a two-drum multipass watertube boiler designed to optimize heat transfer and ensure exceptional performance. With five longitudinal gas passes strategically separated by tangent waterwall tubes, this boiler guarantees maximum efficiency and heat exchange.
To enhance its durability and integrity, the tubes of the ThermoFlo Watertube Boiler can be securely attached to the drums using either welded or press-fit methods. Each tube is equipped with a ferrule attachment welded to its end, ensuring a robust and reliable connection.
The versatility of the ThermoFlo Watertube Boiler makes it an ideal choice for boiler replacement projects. Its innovative design allows the entire unit to be supplied as a convenient field assembly kit, simplifying transportation and minimizing logistical challenges. When faced with limited access to the boiler room, our solution truly shines, as the ThermoFlo Watertube Boiler can be easily erected on-site.
We understand the importance of seamless installation and operational efficiency, and the ThermoFlo Watertube Boiler is designed with these factors in mind. With its field assembly kit and straightforward erection process, you can overcome any obstacles related to boiler room access without compromising performance or reliability.
About ThermoFlo
Capacity
Convenient sizes from 15 BHP to 800 BHP output
Pressure
Standard 160 PSIG to 200 PSIG or higher as specified
Fuels
Natural gas, low BTU gas, Oil or Combination Gas/Oil
Codes
ASME, National Board, UL, ULC and as specified
Emissions
Compliance with all current low NOx regulations
Efficiency
- Efficiencies of 85% are normal with the use of external heat recovery equipment
- Tangent tube furnace walls are insulated with 2" thick 1900°F ceramic blanket secured by heavy guage steel inner casing panels
- Mill finished aluminum outer claddingh allows for a suitable air gap and is lined with fiberglass insulation
Emission Standards
The boiler’s design is optimized for low NOx applications due to its generous furnace volume and low heat release rates. By utilizing refractory materials sparingly, this design achieves excellent performance. Rigorous testing has confirmed that even with conventional standard burner equipment, the boiler’s NOx emissions remain below the stringent levels set by current regulations.
Symmetrical Design
- True symmetrical tube layout with balanced combustion gas and fluid velocities
- Symmetrical tube configuration allows for minimal tube removal clearances and less than half a boiler width is required between boilers in multiple unit installations
Low Maintenance
- All inner and outer casing panels are bolted construction for ease of assembly and easy removal for maintenance
- The ThermoFlo Watertube Boiler is thermal shock proof on the fluid side and combustion gas side. Water return temperatures to the boiler are above the fluid gas dew point. Differential temperatures of up to 150°F can be achieved when operating on high temperature water or thermal fluid
- A large diameter rear downcorner located outside the combustion zone provides excellent natural circulation. There is no requirement for external circulating pumps.
- Access tp the furnace is available through a rear door without changing the burner setting or disconnecting fuel piping.
- Rear convection pass optional access panels can be provided on fuel oil fired units for periodic cleaning. No convection pass baffles are used, cleaning is unrestricted.
Retrofit
The ThermoFlo Watertube Boiler is ideal for boiler replacement projects. The entire unit can be supplied as a field assembly kit and is easily erected on site when boiler room access is a problem. As the entire boiler assembly is bolted and the tubes can utilize a drive fit there are no requirements for site welding or pressure vessel welding certificates.
Additional Balanced Watertube Designs
- High Temperature Hot Water Boilers to 415°F
- High and Low Temperature Water Glycol Heaters to 350°F
- Thermal Oil Heaters to 550°F
- High Steam Boilers to 600 PSIG
- Forced Circulation Steam Boilers
- Low Water Content Steam Boilers
