Spirax Sarco heat transfer solutions are steam-system products used either to transfer heat from primary steam into a secondary water circuit, or to recover flash steam so that more of that energy stays in useful service.
Choose steam heat exchangers when you need stable indirect heating, hot water generation or process-water duty. Choose thermocompressors when flash steam is available and the goal is to reuse that energy instead of wasting it.
Overview
In steam systems, heat transfer performance depends on how effectively primary steam energy is turned into useful hot water or process duty at the point of use, and how much recoverable heat is kept inside the steam cycle. Choose steam heat exchangers when the duty is to transfer heat from steam to water safely and controllably. Spirax Sarco steam heat exchangers support indirect heating, hot water generation and other steam-to-water applications where hygiene, compact packaged delivery or easier commissioning may matter. Plate heat exchangers and shell-and-tube heat exchangers are not interchangeable in every application. Different duties, flowrates, installation constraints and cleaning priorities can make one format more suitable than the other, which is why this category helps buyers move into the right heat exchanger path rather than treating all packaged heat transfer solutions the same way. Choose thermocompressors when flash steam is available and the priority is energy reuse. Spirax Sarco steam jet thermocompressors help recompress that flash steam within the process, and their simple, compact, oil-free design with no moving parts supports low maintenance and straightforward installation. Because heat transfer decisions often connect with condensate recovery, steam efficiency and wider plant performance, this page also acts as a bridge into adjacent Spirax Sarco product and service routes.
How to choose the right heat transfer route
Heat transfer projects usually become clearer when you separate indirect heating duties from energy-recovery duties. The main decision is whether the site needs to deliver controlled heat into a secondary circuit, recover flash steam that is already being wasted, or link both actions into a broader condensate and efficiency project.
| Route | Best fit when | Main objective | Next route |
|---|---|---|---|
| Steam heat exchangers | Steam must transfer heat safely into a secondary water circuit for hot water or process duty | Controlled indirect heating with packaged equipment | Browse heat exchangers |
| Thermocompressors | Flash steam is available and can be reused inside the process | Recover otherwise wasted thermal energy | Browse thermocompressors |
| Condensate and heat recovery systems | The project also depends on returning hot condensate or managing wider recovery around the steam loop | Extend heat recovery beyond a single packaged device | Explore recovery systems |
Typical routes from common heat-transfer searches
Heat-transfer searches usually separate into indirect heating versus energy recovery. Start with steam heat exchangers when the project is about delivering controlled heat into a secondary water circuit. Use thermocompressors when flash steam is already available and the main goal is to reuse that energy inside the process.
If the project extends beyond a single packaged unit and also depends on returned hot condensate or wider loop recovery, continue into condensate recovery systems. Where the improvement case is primarily energy-led, this route also works naturally alongside broader steam flowmeters and recovery planning.
Heat exchangers
Spirax Sarco steam heat exchangers and packaged heat transfer systems transfer heat from primary steam to a secondary water circuit using shell-and-tube or plate heat exchanger designs for indirect heating duties.
Thermocompressors
Spirax Sarco steam jet thermocompressors recover and recompress flash steam within the process so more useful thermal energy stays inside the plant instead of being vented or underused.
Sales Brochures
| Document | Reference | Language | Download |
|---|---|---|---|
| Steam Heat Exchange Solutions | SB-GCH-31 | English | Download |
Continue from heat transfer selection
Heat transfer equipment is usually selected as part of a wider steam efficiency project. The next best route may depend on whether you need adjacent products, an energy-led outcome or engineering support.
Connect heat transfer with the wider steam system
Return to the wider Spirax Sarco product range when heat transfer selection sits alongside steam trapping, pressure control, condensate recovery or boiler house decisions.
Choose by energy performance outcome
Use this route when the real objective is lower fuel use, reduced wasted steam and better energy performance across the plant rather than selecting a single product type in isolation.
Support heat transfer projects with services
Move into services when the project also depends on system assessment, engineering support, commissioning or ongoing optimisation after installation.