Commercial heating
www.heatingandventilating.net
Emiliano Gabrielli, country manager at ATAG Commercial
levels of heat transfer, without compromising reliability.
Stainless steel’s unique properties make it perfect
for heat exchanger construction. It remains smooth, despite the presence of sulphuric and nitric acid in the water (created from flue gas condensate). It can even combat any such corrosive effect and sustain a longer lasting, higher level of operational efficiency when compared to alternative heat exchanger materials (such as aluminium). Furthermore, modern boilers have evolved to
Peace of mind over commercial heating and hot water
The heating and hot water demands of hotel, hospitality and leisure facilities vary, depending on how and when they are used. Fortunately, the latest commercial boilers operate in a range of applications, without compromising on performance or efficiency, as Emiliano Gabrielli, country manager at ATAG Commercial, explains
T
he hospitality industry in the United Kingdom is largely represented by the country’s hotels, pubs, restaurants and leisure companies and
they all require reliable levels of heating and hot water. This is where the latest commercial boilers come to the fore. Throughout the hotel and leisure sector, from suburban guest houses to country house hotels with large leisure complexes, each application has to deal with differing levels of demand for hot water, coupled with the need to maintain guests’ comfort. In fact, heating and hot water systems are essential to any hospitality business – consuming more than 40% of the energy used in the average non-domestic building. That means ample saving opportunities are available, without compromising the all-important comfort and wellbeing of customers and visitors. Given the importance of heating and hot water in hotel and leisure applications, energy efficiency is vital, especially in terms of keeping costs and environmental impact at a minimum. After all, energy
22 November 2022
and water costs can have a big impact on a business’s profit margin, so utilising modern commercial boilers makes sound economic sense. Indeed, replacing outdated, wasteful and inefficient
boilers with high efficiency, condensing models is the perfect means of achieving significant energy and financial savings, not to mention reducing CO and NOx emissions. As legislation has evolved over the years, commercial heating manufacturers have followed suit, ensuring their products offer optimum levels of performance while catering to the demands of a wide range of applications. Whatever type of building the boilers are installed
in, units need to be able to cope with peak heating and hot water demands, without incurring any downtime. To ensure the perfect balance of these elements, it is important to consider the relationship between the boiler’s pump and its heat exchanger. As far as the latter is concerned, technology has evolved considerably during the last 10 years or so, resulting in stainless steel heat exchangers offering improved
encompass a dual heat exchanger design, providing built-in redundancy, while also creating a cascade system inside one unit. Because each heat exchanger is able to run independently from the other, there is the added benefit of having a cascade set-up for enhanced turndowns, as well as built-in backup in the event of one heat exchanger requiring maintenance or attention. Built-in redundancy can greatly benefit a hotel and
leisure applications, as it ensures there will always be a source of heating and hot water, even in the event of a breakdown or a mechanical issue. This should be reassuring to businesses, as they will not have to close their doors (and lose revenue) should a boiler need to be repaired.
A modulating circulation pump should also be used
to ensure the water inside the heat exchanger remains in a turbulent state. This removes any insulating barrier between the heated water and the wall of the heat exchanger – allowing a rapid and efficient transfer of heat. As water is moved around inside a small closed system, it does not expend a lot of energy, with the turbulent flow helping to preserve the lifespan of the heat exchanger itself by reducing the build-up of any precipitates on the heat transfer surface. The latest commercial boilers, including ATAG Commercial’s own XL-W and XL-F ranges, benefit from intelligent built-in, modulating pumps, which constantly monitor the flow rate, enabling the heat exchanger to reach and maintain set-point temperature, while also minimising energy input. Plus, higher flow and transfer rates ensure a boiler reaches its maximum temperature quicker; once this has been achieved, it can then modulate down accordingly. So, the latest commercial boilers offer a wealth of benefits, whatever the size and purpose of their application. Ensuring the boilers feature a high- quality heat exchanger, intelligent pump and built-in redundancy will provide hotel, hospitality and leisure premises with a reliable and efficient source of heating and hot water. They will also help to reduce maintenance and running costs which, in the current economic climate, will provide business owners in these sectors with great peace of mind, both now and in the future
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