Our Product

Our Product

About CircoSense

CircoSense flagship device, the CS4000 is a revolutionary device, proven to reduce your energy usage through intelligent water circulation and assist with water compliance monitoring using Artificial Intelligence.

CircoSense works by targeting inefficiencies in existing secondary return hot water systems, used in most commercial buildings.

How current secondary return water systems operate


  • hot water is circulated even when there is no demand
  • water is heated more often than required, which is costly and wastes fuel
  • water temperatures are taken manually, resulting in high labour costs
  • carbon emissions are higher than they should be

However, CircoSense’s patented AI technology enables it to learn your usage patterns – giving you hot water when you need it, and switching the pump off when you don’t – reducing hot water costs and saving you money.

CircoSense also offers reporting capabilities to assist with water compliance management. The device automatically opens water outlets, records the data, and generates compliance reports – eliminating the need for manually opening water outlets and recording water temperatures. You can see a breakdown of your compliance information and energy savings through our simple to use portal or app.

There are various finance models available for clients including a shared savings model, meaning no upfront costs.


How CircoSense saves money and the environment

CS4000 switches on your circulation pump only when required in three distinct operating modes:

  1. AI Controlled Circulation
  2. Water Compliance
  3. Random Request

AI Controlled Circulation – CS4000 starts by learning when you need water over a two-week period. The information is sent to a cloud based server which stores the usage patterns, analyses them and uses the algorithm to set the circulation cycles. Usage patterns are continuously sent to the server which adjusts the look-ahead running times to the actual running times.

Water Compliance – The device has a built-in purge cycle, so if it’s not used within a 3-hour period, it automatically circulates the water. Additionally, the CS4000 has external temperature sensors installed around the loop to prevent any key parts of the system being in a danger band. This helps to ensure that HSE guidelines for water circulation are strictly adhered to.

Random Request – Should hot water be required outside the normal recognised usage patterns, the CS4000 will automatically react to this. Temperature sensors detect the call for water and reactivate the circulation pump. Provided the BMS system has not turned off the system, water will be circulated immediately and will be available at the outlet.


How CircoSense saves money and the environment

Web Portal & App

The CS4000 comes with a web-based portal and app capable of demonstrating real-time savings information on your hot water system’s operation analytics, compliance status, pump run times and many other functions.

Compliance reporting

Reports are exportable for compliance,savings and sentinel point compliance.

Device real-time savings

£, kWh, CO2 information is provided on a siteby-site and accumulative basis. Information is also provided for return on investment calculations, suitable for gainshare models. Savings calculation methodology approved to IPMVP* standards.


Alerts are sent via the system when it detects water returning below 50oC and low stored water temperatures. We have a full suite of alerts available which can be tailored to your needs

Operational analytics

Flow, return, cold water, stored water temperatures and pump run times are all available in graph format and are fully exportable.

Web Portal & App

Key Features

Average Savings Icon

Average savings of 38%

Shared Savings Icon

Shared savings options

Atifical Intelligence Icon

Artificial Intelligence

Reduced Co2 icon

Reduced carbon emissions

Improved compliance regime & reduced labour costs

Web portal icon

Web portal & app


CircoSense ISO 18001

CircoSense ISO Logo 14001

CircoSense NICEIC

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Carbon Trust Accredited Supplier

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Frequently Asked Questions

  • What is CircoSense?
    CircoSense is patented predictive cognitive technology, which improves energy efficiency within secondary return hot water systems.
  • Is CircoSense applicable to me/my company?
    If you have a secondary return system and have any periods of time (i.e. overnight) when it is not in use, then CircoSense will improve your energy efficiency and in turn reduce your costs of heating hot water and carbon emissions.
  • How long does it take to install CircoSense?
    Due to the non-invasive nature of the device, the installation of CircoSense takes less than a day.
  • Why should I choose CircoSense?
    CircoSense is a unique product using patented technology to learn and control hot water heating systems. CircoSense are industry leaders in this market, and are constantly striving to provide solutions to our customers to lower energy costs and reduced carbon emissions.
  • How much does it cost?
    Due to the nature of the device, which is customised to suit each property, a survey will be required to determine the price. Please contact one of our sales team to arrange a site survey for your property. In all cases the system will pay for itself in 4 years or less.

Our Company

CircoSense  is a brand owned By Circotech Group Limited. CircoSense is innovative brand established to provide solutions to reduce fuel wastage and carbon emissions through cognitive energy saving devices.

CircoTech Group Ltd are committed to providing innovative green energy solutions through cutting-edge intelligent technology, enabling customer to reduce costs and lower carbon emissions.

CircoSense Ltd have launched the CS3000 device, which uses patented cognitive technology to revolutionise the control of secondary return hot water systems in commercial building installations.

Our Team

Martyn SavageManaging Director


Contact Us

Thank you for your interest in CircoSense, we are happy to help answer any queries you may have.

If you have a question or require further information about our product or how we can help your organisation, please call us on 0333 320 1000 or  fill out the form and we will ensure that it’s passed on to the relevant department. We will get back to you as soon as we can.

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