Company News
TacoTherm Dual Zepto 10/26 passes BESA 2026 HIU test regime with 17°C hot water return temperature
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aconova’s TacoTherm Dual Zepto 10/26 heat interface unit (HIU) has successfully passed all four modules of the BESA UK HIU Test Regime V3- Rev002 (March 2026), demonstrating its performance against the latest test criteria and securing its place on the BESA HIU Test Register.
UKAS-accredited laboratory, Enertek International, carried out testing on a production sample. On a 70°C network, the unit recorded a domestic hot water Volume
Weighted Average Return Temperature (VWART) of 17°C, against a BESA pass threshold of 20°C. Maximum hot water output was 42.0 kW. The unit also passed on a 55°C primary network at 36.1 kW, the heat pump readiness point.
Together, the successful BESA testing and strong return temperature results demonstrate the TacoTherm Dual Zepto’s ability to support lower network return temperatures, thereby improving heat network effi ciency, and providing evidence of its suitability for heat-pump-led and next- generation heating schemes.
The unit delivered hot water in 10 seconds on a 70°C network and passed every safety criterion on scalding and scaling exceedances. Behfar Abedinia, General Manager of Taconova UK, commented: “Ofgem took on regulation of heat networks in January 2026, and technical standards follow in 2027. Specifi ers are being asked to evidence performance, not assert it. Independent testing to the 2026 BESA regime gives them return temperature data they can put straight into a design case.” The full test results can be found on the BESA HIU Test Register:
www.thebesa.com/test-registers/taconova
www.taconova.com
Ideal Commercial Heating heat pump helps decarbonise Grade I listed building at Ely Cathedral
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n ECOMOD natural refrigerant air source heat pump from Ideal Commercial Heating has been installed at The
Almonry Kitchen, a Grade I listed café and event space within the grounds of Ely Cathedral, helping to reduce carbon emissions while preserving the character and heritage of one of the UK’s most historically significant buildings. As part of a wider refurbishment programme designed to improve sustainability and modernise the facility, Ely Cathedral secured funding to replace the existing gas boiler serving The Almonry Kitchen. The project centred on the installation of an Ideal Commercial Heating ECOMOD 290HT 27kW monobloc air source heat pump, which now provides both heating and domestic hot water for the building. The ECOMOD 290HT was selected for its ability to deliver high flow temperatures of up to 75°C, making it suitable for retrofit applications where existing heat emitters and pipework are being retained. The ECOMOD heat pump installed at The Almonry is capable of achieving a Coefficient of Performance (CoP) of up to 4.94 and incorporates an inverter-controlled compressor that continuously adjusts output to match demand, helping to optimise efficiency and minimise energy consumption.
Further sustainability benefits are delivered through the use of natural refrigerant R290. With an ultra-low Global Warming Potential (GWP) of just three, the refrigerant helps minimise the environmental impact of the system while supporting the long-term transition to lower-carbon heating technologies.
idealcommercialboilers.com
Trianco’s Activair R290 indoor heat pump – the perfect energy-effi cient solution for apartments and smaller homes
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rianco’s new Activair R290 indoor heat pumps deliver effi cient, low-carbon heating with outputs of 3.2kW and 5kW, advanced smart controls and remote diagnostic/ monitoring capability; suitable for retrofi t, new build and LA/social housing.
The Activair R290 is a revolutionary indoor air/water heat pump designed for locations where an outdoor unit is unfeasible; examples are apartments without balconies or those with limited outside space.
Developed to supply both heating and hot water, when fi tted with a domestic hot water cylinder, the Activair R290 is available as a wall mounted 3.2kw unit or a fl oor standing 5kw unit.
Ideal for small to medium-sized homes, it is a compact, complete indoor solution with all the functionality of an outdoor unit. A key benefi t is the facility for remote diagnostics and monitoring through intelligent diagnostics.
On the outside, only the two vents are visible while, on the inside, the unit has similar dimensions to a domestic boiler. It can also provide air cooling where the property is fi tted with fan coils instead of radiators. Peter Beighton at Trianco, explains: “By eliminating the need for an outdoor unit, our Activair R290 Indoor Heat Pumps provide a discreet, space-saving solution that can be installed in airing cupboards, garages or loft spaces alongside a hot water cylinder. Designed for outstanding energy performance, they can help homes achieve an EPC A rating, depending on the overall system design.”
www.trianco.co.uk
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Nuaire launches new website in landmark 60th anniversary year
ndoor air quality and ventilation manufacturing specialist Nuaire has unveiled a new website at www.
nuaire.co.uk designed to make it easier for customers to access product information, technical resources and expert guidance across its extensive ventilation portfolio. Launched during Nuaire’s 60th
anniversary year, the new website combines a fresh, modern design with improved functionality, enabling consultants,
contractors, developers, housing providers and facilities managers to quickly fi nd the products, information and support they need. Visitors can explore Nuaire’s market-leading residential and commercial ventilation solutions, including its popular MRXBOX MVHR range, Drimaster positive input ventilation systems, XBOXER commercial air handling units and the latest commercial and residential heat recovery technologies.
One of the key features of the new website is its streamlined navigation structure, making it easier to identify the most suitable solution for a project. Product pages now provide more detailed information on features, performance, and applications, together with direct access to supporting literature and technical resources.
The launch also introduces a dedicated Knowledge Hub, bringing together product documentation, technical literature, installation guides, brochures and other resources in one central location. By providing a single destination for technical information, the new hub helps customers quickly fi nd the resources they need, saving time throughout the specifi cation, installation, and maintenance process. Jessica Cook, Nuaire strategic Marketing Director, said: “The redevelopment on the website refl ects the growing importance of digital resources within the construction and building services sectors, where specifi ers, contractors and facilities professionals increasingly rely on online information to support project decisions.
www.nuaire.co.uk
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