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Hidden heat loss is costing you more than you think

Not every energy loss is obvious. 

Across steam and condensate systems, missing or ineffective insulation can release useful heat every hour that your plant is operating. This increases energy demand, adds avoidable carbon emissions and can make it harder to understand where efficiency improvements need to be made.  

A Spirax Sarco Heat Loss Survey forms part of a wider steam audit approach. Thermal imaging technology helps make heat loss visible, giving your team evidence to support better decisions on maintenance, insulation and energy performance.  


Why heat loss matters

Improving steam efficiency often starts with understanding where thermal energy is being lost. 

Uninsulated or poorly insulated surfaces can waste heat before it reaches the point of use. In practical terms, your site may be paying to generate energy that is not delivering value to the process. 

A Heat Loss Survey helps you move from assumption to evidence. By showing where heat is escaping, it gives your team a clearer view of where insulation improvements may be needed and which actions should be considered first. 


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(Surveys are non-invasive and must be carried out while your steam system is operating normally).

What the survey helps you do

How it works

1.  Scan

A Spirax Sarco engineer uses thermal imaging to identify where heat may be escaping from steam and condensate systems.

2.  Assess

Findings are reviewed using a structured assessment approach, helping distinguish visible heat loss from practical improvement opportunities.

 

3.  Prioritise

You receive clear recommendations to help focus resource where it matters most. 

4.  Act

Survey insight can support targeted insulation improvements, helping reduce heat loss, improve efficiency and address any safety risks. 

 

What you receive - a Heat Loss Survey can provide: 

Improve boiler efficiency

Thermal images showing visible heat loss across surveyed areas

Positive EHS observation

Identification of missing, damaged or ineffective insulation

Preventative maintenance

Practical recommendations for improvement and prioritised next steps

Protect plant equipment

Support for insulation jacket opportunities, where appropriate

Maintenance agreements

A summary suitable for internal stakeholders

Save energy and costs

Estimated savings and prioritisation scoring

Turning heat loss into measurable savings

 

By showing where energy is being wasted, a Heat Loss Survey can help build a stronger financial case for targeted improvements. Recommendations are prioritised using estimated savings, helping your team direct time and budget towards the opportunities with the greatest potential value. And where suitable improvements are implemented, energy cost savings could deliver payback in as little as a few months.  

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Solution focus:

How Insulation Jackets help reduce heat loss & improve safety 

 

One of the most common improvement opportunities identified through a Heat Loss Survey is insulation. Spirax Sarco Insulation Jackets are designed to help reduce heat loss from selected steam system components. By keeping more useful heat within the system, they can help lower energy waste, improve system efficiency and provide a barrier around hot surfaces.  They are purpose-built for Spirax Sarco equipment, helping provide a precise fit and dependable performance for long life in everyday operating conditions.  

 

Download the Insulation Jacket data sheet

Insulation jacket photoshoot

 

Ready to find the heat loss you cannot see?

Speak to your local Spirax Sarco team to identify hidden heat loss and understand where action could deliver value for your site. 

Book a Heat Loss Survey
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