Description
Thermon Caloritech™ CX Series Flange Heater
Replacement Boiler Flange Heaters for Steam and Hot Water Boilers
The Caloritech™ CX Series Flange Heater from Thermon is a specialty electric immersion-heating solution designed primarily as a replacement boiler flange heater. The CX Series provides Caloritech-quality replacement elements for commercial-grade boilers and can be configured to suit different boiler designs and installation requirements.
The CX Series is available in a variety of flange shapes, heater sizes, wattages and voltages, allowing it to be specified for different boiler configurations. Thermon identifies rectangular, square and round flange configurations, while detailed wattage, voltage and dimensional information is provided in the product catalog.
Key Features
- Caloritech™ replacement boiler flange heater
- Designed for steam boilers and water boilers
- Available for Thermon Caloritech boilers as well as boilers from other manufacturers
- Standard and custom configurations available
- Rectangular, square and round flange options
- Multiple voltage and wattage configurations
- Available in different heater sizes and immersed lengths
- Suitable for boiler electrification and multi-fuel boiler applications
- Optional temperature and protection devices can be incorporated
- Suitable for commercial and industrial boiler systems.
Designed for Boiler Replacement
One of the main advantages of the CX Flange Heater is its role as a replacement heating element for existing boilers.
Rather than requiring a completely new boiler, the CX Series can be specified according to the existing boiler’s flange arrangement, electrical requirements and heating capacity.
Thermon states that CX replacement boiler flange heaters are available for both Thermon Caloritech boilers and boilers manufactured by other companies, with standard and custom units available to meet customer requirements.
This makes the CX Series suitable for boiler refurbishment, replacement projects and electric-heating upgrades.
Available for Steam and Water Boilers
The CX Series can be configured for different boiler applications, including:
Steam Boilers
Electric flange heaters can provide the heat input required to generate steam within an electrically heated boiler system.
Hot Water Boilers
The heaters can also be configured for hot-water boiler applications where electric heating is used to raise and maintain water temperature.
Thermon specifically identifies designs for both steam boilers and water boilers within the CX product range.
Flange Configurations
The CX Series is not limited to one flange shape.
Available configurations include:
- Rectangular flanges
- Square flanges
- Round flanges
The appropriate flange configuration depends on the boiler being fitted.
Thermon recommends consulting the CX catalog for detailed information regarding available wattages, voltages, flange styles and heater dimensions before selecting a replacement unit.
CXC and CXI Heater Configurations
The broader Caloritech CX flange-heater family includes different element configurations for different heating media.
CXC Series
The CXC Series is primarily intended for water heating applications. It uses copper-sheathed heating elements silver-brazed to a steel flange.
CXI Series
The CXI Series is designed for heating water, particularly in hot-water and steam boilers, and can also be used for mildly corrosive solutions in applications such as rinse tanks and spray washers. It uses Incoloy®-sheathed elements silver-brazed to a steel flange.
The correct element configuration should therefore be selected according to the heating medium, temperature and application.
Flexible Electrical Configuration
The CX family can be configured for a range of electrical requirements. Thermon documentation indicates standard voltage options extending from 208 V to 690 V, with custom configurations available.
Available configurations can therefore be matched to the electrical system of the boiler and project.
For an accurate quotation, the required specification should include:
- Heater wattage
- Supply voltage
- Phase
- Flange dimensions
- Number of heating elements
- Immersed length
- Boiler manufacturer/model
- Heating medium
- Required temperature
- Required controls and protection
Custom Engineering Options
In addition to standard configurations, Thermon offers custom CX units according to customer requirements.
Possible options include:
- Custom flange sizes
- Custom heater lengths
- Custom heater diameters
- Built-in thermostats
- Thermocouples
- Thermostat wells
- High-limit protection
- Different terminal-box configurations
Thermon’s boiler-electrification material specifically identifies standard and custom units as well as optional temperature and high-limit devices.
Boiler Electrification
The CX Series is also relevant to the transition from fossil-fuel boilers toward electric heating.
Thermon has documented applications where Caloritech CX Flange Heaters have been integrated into multi-fuel boiler systems alongside gas and oil heating options. Electric heating can therefore be incorporated into an existing boiler strategy while retaining other fuel sources where required.
This makes the CX Series a potential solution for:
- Boiler electrification
- Hybrid boiler systems
- Electric/steam boiler systems
- Electric/hot-water boiler systems
- Replacement of existing boiler heating elements
- Industrial process heating
Safety and Control Options
Electric boiler heating requires appropriate temperature and electrical protection.
Depending on the configuration, CX heaters can incorporate devices such as:
- Thermostats
- Thermocouples
- High-limit protection
- Thermostat wells
- Temperature-control equipment
Thermon also provides control-panel solutions for electric heating systems, allowing heater operation to be automatically controlled according to the application’s requirements.
Typical Applications
The Caloritech CX Series is suitable for:
- Steam boilers
- Hot-water boilers
- Commercial boilers
- Industrial boilers
- Boiler replacement
- Boiler refurbishment
- Electric boiler systems
- Multi-fuel boiler systems
- Process heating
- Industrial hot-water systems
- Boiler electrification projects
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Caloritech™ / Thermon |
| Product Series | CX |
| Product Type | Replacement Boiler Flange Heater |
| Heater Type | Electric Immersion / Flange Heater |
| Applications | Steam Boilers / Water Boilers |
| Flange Styles | Rectangular / Square / Round |
| Voltage | Various configurations; 208–690 V options referenced |
| Wattage | Various; selected according to boiler requirements |
| Heater Configuration | Standard / Custom |
| Element Options | Copper or Incoloy® depending on series |
| Temperature Devices | Thermostat / Thermocouple / High Limit options |
| Flange | Steel |
| Applications | Boiler Heating / Process Heating / Electrification |
Exact wattage, voltage, flange dimensions and heater size should be selected from the CX Series catalog according to the specific boiler. Thermon explicitly directs users to the catalog for these detailed selection parameters.
Why Choose the Caloritech CX Series?
The Caloritech™ CX Series Flange Heater provides a flexible solution for replacing or upgrading electric heating elements in commercial and industrial boilers.
Its combination of multiple flange configurations, electrical options, standard and custom designs, and compatibility with both Thermon and other boiler manufacturers makes it suitable for a wide range of replacement and boiler-electrification projects.
For applications where exact replacement dimensions are required, the boiler’s existing flange dimensions, heater length, wattage, voltage and element configuration should be verified before ordering.
