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Space­saving design, system flexibility and advanced electronic control make Vokèra by Riello Commercial’s all­ new Condexa Pro condensing boilers an ideal solution for a luxury hotel in Sheffield. The Best Western Plus Kenwood Hall has replaced six outdated boilers serving hotel rooms, kitchen, restaurant and public areas with three compact Condexa Pro 90 units.


okèra, through its parent company Riello Group, is a part of Carrier, a leading global provider of

innovative heating, ventilating and air conditioning (HVAC), refrigeration, fire, security and building automation technologies.

The new boilers are installed in a linear cascade configuration on a precision-engineered framework, purpose-designed to assist installation and allow easy access to all components from the front. In addition, logic integrated in the electronic control allows each boiler to operate either as a primary or a secondary in the cascade, ensuring constant operation, even while being serviced.

The Condexa Pro units replaced boilers that had become increasingly unreliable and inefficient. Sim Cowen, Managing Director, B P Dempsey Ltd, the local commercial heating specialists, recommended replacing them with Condexa Pro units.

“Cowen recommended Vokèra by Riello Commercial and his advice was spot on,” said Gary Dodd, Maintenance Manager at Kenwood Hall. “Our new Condexa Pro 90 boilers haven’t missed a beat since they were commissioned. In fact, they will probably be our preferred choice when the time comes to replace the remaining existing boilers at Kenwood Hall - and possibly across the group’s other hotels in the area,” he added.

FOCUS: HOTELS & LEISURE Vokèra Condensing Boilers Provide Much­Needed Upgrade to Best Western Hotel

Vokèra’s sales and technical team provided a comprehensive support package for the project, including a pre-sales report showing the proposed Condexa Pro 90 cascade configuration and how this would fit into the confined plant room space. Vokèra was also able to handle the requirement for an extended external flue to clear the roof of the

hotel, which saved the cost of a specialist flue contractor.

“Kenwood Hall was my first Vokèra by Riello Commercial project but I’m sure it won’t be my last,” Cowen said. “The new Condexa Pro offers excellent value for money and it is designed to adapt to the most varied plant requirements. It’s also very compact and powerful, which meant that we were able to replace six old boilers with just three 90kW Condexa Pro which are more than able to meet the hotel’s heating needs in terms of output and efficiency.”

Vokèra by Riello Commercial’s new range of Condexa Pro wall-hung condensing boilers extend from 35 up to 131kW and offer solutions for new plants, replacements or renovations of old heating systems. Each versatile appliance forms the principle element in a system with almost limitless configurations, from simple standalone solutions to modular cascade systems, as at Kenwood Hall, that can accommodate specific requirements thanks to the wide range of accessories.

Among the most innovative components of the new Condexa Pro is an optimised stainless steel heat exchanger, designed and manufactured by Riello, with single or double coil patented sections and premix burners for high turndown ratio and low emissions. In addition, the calculation speed and advanced management algorithms of the electronic control system allow regulated ambient temperatures and the best possible operation performance both for standalone boilers and for multiple cascades up to 10 units.

For more information on the range of condensing boilers as well as news and updates, visit or follow Vokèra on Facebook, Twitter or LinkedIn.

About Vokèra by Riello Commercial

Vokèra is a leading heating manufacturer with a product portfolio that includes domestic gas boilers, light commercial gas boilers, unvented cylinders, water heaters, solar thermal collectors and air source heat pumps. Established over 30 years ago, Vokèra operates across the UK and Ireland. Its parent company, Riello Group, is a leader in products and services for heating, air-conditioning and energy efficiency. Headquartered in Legnago (Verona), Italy, Riello operates in over 120 countries. Riello is a part of Carrier, a leading global provider of innovative heating, ventilating and air conditioning (HVAC), refrigeration, fire, security and building automation technologies. For more information on Vokèra, visit the website. 32 BUILDING SERVICES & ENVIRONMENTAL ENGINEER AUGUST 2021 Read the latest at:

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