# Pre-Engineered vs. Custom Thermal Fluid Systems: Making the Right Choice
Posted by jforman on November 22, 2021, 8:35 PM | Leave a Comment
Choosing between a pre-engineered thermal fluid system and a custom-engineered one depends largely on the specific needs of your application. This blog post aims to guide you through understanding the differences between these two types of systems so that you can make an informed decision. Both options come with unique benefits, making it essential to weigh the pros and cons before committing to one for your project.
## The Pros and Cons of Each Type of Heating System
When selecting a thermal fluid system, there are several crucial steps to follow:
- Clearly define the unique performance requirements of your application.
- Thoroughly evaluate the installation requirements and any specific needs of your facility.
- Compare different thermal system suppliers and learn about their product offerings and approaches to customer projects.
- Determine how to correctly install and operate the system within your facility.
It's important to note that any missteps in these areas can negatively affect your project. For instance, failing to consider different heater designs or neglecting to compare suppliers can lead to challenges that are hard to rectify once installation begins. Fortunately, Sigma Thermal is here to offer guidance to ensure you make the right choices for your thermal fluid system.
A key decision you'll face during system selection is whether to go with a pre-engineered system, a custom-engineered system, or a mix of both. To help you decide, let's explore the advantages and disadvantages of each type of system.
### Pre-Engineered Thermal Fluid Systems
The primary benefits of pre-engineered thermal fluid systems include:
- Lower upfront costs due to standardized bill of materials.
- Faster delivery times since no engineering is required.
- Fully defined dimensions, drawings, and performance specifications prior to purchase.
- Simplified projects and reduced site or plant engineering expenses because there are no drawings that need to be reviewed, revised, or approved.
### Custom Engineered Thermal Fluid Systems
On the other hand, custom thermal fluid systems are often preferable for more complex installations or processes. You might opt for one of these systems if you wish to provide input or specify certain factors, such as:
#### Process Considerations
For custom-engineered thermal fluid systems, you should provide details regarding the following process considerations:
- System flow rates
- Fuels, including biogas, waste gas, liquid fuels, off-spec fuels, variable fuel compositions, or dirty fuels
- Strict emissions requirements
- Heat transfer fluids like silicone-based fluids, molten salt, or ultra-high-temperature synthetic oils
#### Review and Approval of Drawings
In some cases, you may wish to directly influence aspects such as:
- Connection location and orientation
- Mechanical specifics like configuration, materials, and paint
- Specific system components if your company requires particular instruments, valves, pumps, or other buy-out equipment
- Factory interconnection and skid mounting for various components, such as mounting an expansion tank, pump skid, heater, and drain tank on one skid frame
- Custom secondary loop skids for auxiliaries like indirect steam generators, temperature control units, control valves, and process coolers
### A Hybrid Approach: Combining Pre-Engineered and Custom Components
At Sigma Thermal, we offer a modular approach to pre-engineered thermal fluid systems, allowing for the integration of both pre-engineered and custom-engineered systems. With this hybrid approach, you can use pre-engineered components where customization isn't necessary, while tailoring specific areas to meet your needs. For example, you could use a pre-engineered heater and pump skid design but customize a large expansion and/or drain tank to fit your system's volume requirements.
Using a hybrid approach to system selection enables you to save time and cost while streamlining your systems. Additionally, it allows you to easily adapt systems to meet specific project requirements.
### Process Heating Systems from Sigma Thermal
The experienced team at Sigma Thermal specializes in both pre-engineered and custom-engineered thermal fluid heating systems. Our equipment ensures optimal installation, operation, and fulfillment. If you require pre-engineered thermal fluid systems, we offer our HC2 gas-fired heaters and SHOTS electric heaters. Alternatively, we can collaborate with you to design a fully customized solution if you wish to specify certain components and design elements.
For more information about our thermal fluid systems, feel free to contact us with any questions or concerns. We're also happy to assist you in finding the perfect solution when you request a quote from us.
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