FAQs

Explore some of the frequently asked questions we receive about our products, services, and refrigeration.

About Celsius Systems

Yes. Celsius Systems manufactures the ENRG SAVR in the UK and supplies systems to businesses globally. The technology has been adopted by businesses including supermarkets, food wholesalers, breweries, beverage manufacturers and hotels.
Celsius Systems UK Ltd was founded in 2006, meaning the company has more than 20 years of experience developing and supplying refrigeration monitoring and energy-saving solutions.
Celsius Systems develops, manufactures and supplies solutions designed to make commercial refrigeration more efficient. Its experience includes refrigeration temperature monitoring systems and energy-saving technologies, with the ENRG SAVR now being its key energy-saving solution.
Celsius Systems has been working with refrigeration monitoring and energy-saving technology since 2006. Earlier products and services included the Kooltrak data refrigeration monitoring system and the EndoCube, before the company introduced its own ENRG SAVR technology in 2025.
Celsius Systems UK Ltd has its head office in London, with a registered address in Newton Abbot, Devon. The company supplies its products to businesses in the UK and internationally.
Celsius Systems UK Ltd is a British company specialising in temperature monitoring and energy-saving solutions for commercial refrigeration. The company works with businesses that rely on refrigeration to help reduce energy consumption, running costs and unnecessary wear on refrigeration equipment.
Celsius Systems' solutions are suitable for businesses across a wide range of industries that depend on commercial refrigeration. Its customers have included restaurants, supermarkets, hotels, convenience stores, cold storage facilities and food production businesses.

About ENRG SAVR

Category: About ENRG SAVR
Yes. Supermarkets are one of the sectors identified by Celsius Systems as using its technology. ENRG SAVR can be applied to refrigeration rack (pack) systems, suitable commercial refrigeration equipment such as display cabinets, multidecks, fridges and freezers.
Category: About ENRG SAVR
Yes. Restaurants and food-service businesses can use ENRG SAVR on suitable commercial refrigeration equipment, helping to reduce unnecessary refrigeration cycles and potentially lower energy and maintenance costs.
Category: About ENRG SAVR
Reducing unnecessary on/off cycling reduces the amount of work carried out by compressors and other refrigeration components. This can help reduce wear and tear, potentially increasing equipment longevity and reducing maintenance requirements.
Category: About ENRG SAVR
Yes. Using less electricity for refrigeration can help businesses reduce the carbon emissions associated with their energy consumption. Celsius Systems positions ENRG SAVR as part of a wider approach to reducing energy waste and helping businesses work towards their sustainability and carbon reduction goals.
Category: About ENRG SAVR
Yes. Because ENRG SAVR is designed to reduce unnecessary refrigeration cycles, it can reduce strain and wear on compressors and other components. This will contribute to lower maintenance costs and less equipment downtime over the life of the system.
Category: About ENRG SAVR
Yes. By reducing unnecessary cooling cycles and energy consumption, ENRG SAVR is designed to help businesses lower their annual refrigeration running costs. The potential financial saving will depend on the individual refrigeration system and how it is used.
Category: About ENRG SAVR
No. ENRG SAVR is designed to work with existing commercial refrigeration equipment rather than requiring businesses to replace their refrigeration units. This provides a way to improve the efficiency of existing equipment without the cost and disruption of a complete refrigeration upgrade.
Category: About ENRG SAVR
No. One of its key advantages is that it can be retrofitted to existing refrigeration equipment. This means businesses can potentially improve the efficiency of equipment they already own rather than investing in an entirely new refrigeration system.
Category: About ENRG SAVR
Yes. Celsius Systems states that ENRG SAVR is compatible with Automated Critical Temperature Recording Systems, allowing businesses to continue monitoring refrigeration temperatures alongside the energy-saving technology.
Category: About ENRG SAVR
Every refrigeration system is different, so potential savings will depend on your equipment, usage and operating conditions. Celsius Systems can discuss your refrigeration requirements and provide a quote for ENRG SAVR.
Category: About ENRG SAVR
ENRG SAVR fits over the thermostat sensor or temperature probe inside a refrigeration unit. Its specially designed food-grade construction is intended to mimic the thermal characteristics of food and stored products. This means the sensor is less affected by rapid changes in surrounding air temperature, allowing the refrigeration system to operate based more closely on the temperature of the products being stored.
Category: About ENRG SAVR
ENRG SAVR comes with a 10-year warranty, giving businesses long-term reassurance that their investment is protected. With a decade of warranty cover, ENRG SAVR is designed to provide a long-term energy-saving solution for commercial refrigeration.
Category: About ENRG SAVR
Celsius Systems states that ENRG SAVR can reduce the number of refrigeration cycles significantly, with reductions of up to around 85% referenced on its temperature monitoring information. The exact reduction will depend on the individual refrigeration system and operating conditions.
Category: About ENRG SAVR
Celsius Systems states that ENRG SAVR can reduce refrigeration energy consumption by up to 30%, depending on the system and application. Actual savings will vary according to factors such as the type of refrigeration equipment, usage and operating conditions.
Category: About ENRG SAVR
The typical return on investment (ROI) for ENRG SAVR is around 6–12 months, depending on the refrigeration equipment, how heavily it is used and the energy savings achieved. By reducing unnecessary refrigeration cycles and energy consumption, ENRG SAVR can potentially pay for itself through energy savings within its first year.
Category: About ENRG SAVR
The ENRG SAVR itself was introduced to the market by Celsius Systems in 2025, but it builds on the company's more than 20 years of experience working with refrigeration temperature monitoring and energy-saving solutions.
Category: About ENRG SAVR
Yes. ENRG SAVR is designed to work with existing commercial refrigeration systems and is stated by Celsius Systems to be compatible with all systems. It is fitted over the existing thermostat sensor (temperature probe) rather than requiring a complete replacement of the refrigeration equipment.
Category: About ENRG SAVR
ENRG SAVR is designed to be simple and quick to install. The device fits over the refrigeration unit's existing thermostat sensor or temperature probe, meaning it does not require a major modification or replacement of the refrigeration system. No disruption to business during installation, refrigeration equipment continues to operate as normal.
Category: About ENRG SAVR
Yes. ENRG SAVR is specifically designed for refrigeration applications where food and other temperature-sensitive products are stored. Its food-grade construction is designed to mimic the thermal characteristics of stored products while helping the refrigeration system respond more appropriately to temperature changes.
Category: About ENRG SAVR
The key benefits include: • Reduced refrigeration energy consumption • Lower annual running costs • Fewer unnecessary refrigeration cycles • Reduced compressor and component wear • Potentially longer equipment lifespan • Reduced maintenance requirements • Less risk of equipment downtime • Reduced carbon emissions • A simple solution that can be fitted to existing refrigeration equipment • Suitable for a wide range of commercial refrigeration applications
Category: About ENRG SAVR
ENRG SAVR helps reduce unnecessary refrigeration cycles. By influencing the way the thermostat responds to temperature changes, it reduces the number of `Start-Ups`, times the refrigeration system switches on and off, helping to lower energy consumption, running costs and wear and tear on refrigeration components.
Category: About ENRG SAVR
ENRG SAVR is an energy-saving temperature monitoring device designed for commercial and industrial refrigeration. It works with a refrigeration unit's existing thermostat sensor to help the system respond to the temperature of the stored products rather than reacting unnecessarily to short-term fluctuations in air temperature.
Category: About ENRG SAVR
ENRG SAVR can be used across a broad range of commercial refrigeration applications, including Cold storage facilities, walk-in chillers and freezers, upright fridges and freezers, bench fridges and freezers, grab-and-go multidecks, refrigerated display cabinets and beer and wine fridges.
Category: About ENRG SAVR
ENRG SAVR is manufactured in the UK by Celsius Systems UK Ltd. The company supplies the technology to businesses both in the UK and around the world.
Category: About ENRG SAVR
ENRG SAVR can be particularly useful for businesses with significant commercial refrigeration requirements, including supermarkets, restaurants, hotels, convenience stores, food manufacturers, food wholesalers, breweries, beverage companies and cold storage facilities.
Category: About ENRG SAVR
Replacing commercial refrigeration equipment can be a significant investment. ENRG SAVR offers an alternative approach by improving the efficiency of existing refrigeration systems. By helping reduce unnecessary cycles, it can potentially lower energy consumption, running costs and equipment wear without requiring a complete refrigeration replacement. It is also a more affordable option, and can last for many years.
Category: About ENRG SAVR
ENRG SAVR is designed to help the refrigeration system respond more closely to the thermal behaviour of stored products, rather than reacting unnecessarily to rapid air-temperature fluctuations. It is intended to optimise refrigeration operation while maintaining the required product temperature.

Refrigeration Tips

Category: Refrigeration Tips
Yes. ENRG SAVR has been designed as a retrofit solution for existing commercial refrigeration equipment. It can be fitted to suitable refrigeration systems without requiring a complete replacement or major modification. This makes it a practical option for businesses looking to improve energy efficiency across existing fridges, freezers, display cabinets and other commercial and industrial refrigeration equipment.
Category: Refrigeration Tips
Yes. Energy consumption can potentially be reduced without replacing existing refrigeration equipment. ENRG SAVR is fitted to the existing thermostat sensor and helps prevent the refrigeration system from responding unnecessarily to rapid changes in air temperature. This will reduce unnecessary cooling cycles and energy consumption while allowing businesses to continue using their existing refrigeration equipment.
Category: Refrigeration Tips
Yes. ENRG SAVR is specifically designed to reduce unnecessary compressor `start-ups`, switching on and off of commercial refrigeration equipment. It works by helping the thermostat sensor respond more like the products being stored, which change temperature more slowly than the surrounding air. This can reduce unnecessary compressor cycling, helping to lower energy consumption and equipment wear.
Category: Refrigeration Tips
The payback period for energy-saving refrigeration technology depends on factors such as the equipment being used and energy consumption. For ENRG SAVR, the typical payback period is around 6–12 months, depending on the energy savings achieved. This makes it a potentially cost-effective way for businesses to improve refrigeration efficiency without replacing their existing equipment.
Category: Refrigeration Tips
Yes. You don't necessarily need to replace your existing refrigeration equipment to improve its efficiency. ENRG SAVR is designed to work with existing commercial refrigeration systems, helping to reduce unnecessary refrigeration cycles and energy use. This provides businesses with a way to improve efficiency without the cost and disruption of replacing their refrigeration equipment.
Category: Refrigeration Tips
Yes. Businesses can reduce commercial refrigeration energy consumption by improving the way refrigeration equipment responds to temperature changes, reducing unnecessary cooling cycles and ensuring equipment is operating efficiently. ENRG SAVR from Celsius Systems is designed to reduce energy consumption by helping refrigeration systems respond more closely to the temperature of the products being stored, rather than reacting to short-term changes in air temperature.
Category: Refrigeration Tips
Businesses can reduce refrigeration energy waste by ensuring equipment is well maintained, minimising unnecessary temperature fluctuations and improving the efficiency of existing refrigeration systems. One way to tackle unnecessary energy use is with ENRG SAVR, which helps reduce unnecessary refrigeration cycles by making the thermostat sensor respond more like the products being stored. This can help reduce energy consumption, running costs and equipment wear without requiring businesses to replace their existing refrigeration equipment.
Category: Refrigeration Tips
ENRG SAVR is an energy-saving technology designed specifically to reduce energy consumption in commercial refrigeration. Developed by Celsius Systems, it fits over the existing thermostat sensor and helps the refrigeration system respond more appropriately to product temperature. By reducing unnecessary refrigeration cycles, it can help businesses reduce energy consumption, running costs and wear on refrigeration components.
Category: Refrigeration Tips
ENRG SAVR by Celsius Systems is designed to reduce unnecessary refrigeration cycles. Its food-grade construction is designed to mimic the thermal characteristics of stored products, helping to reduce the effect that rapid changes in air temperature can have on the thermostat sensor. This allows the refrigeration system to operate based more closely on product temperature and can reduce unnecessary cycling.
Category: Refrigeration Tips
Air temperature inside a refrigerator or freezer can change quickly when doors are opened, products are loaded or unloaded, or warm air enters the unit. The stored products themselves change temperature much more slowly than the air temperature. ENRG SAVR helps reduce the effect of these rapid air-temperature fluctuations on the thermostat sensor ensuring the compressor only starts when the stored product requires it to.

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