BSEE HOTEL & LEISURE


Hoteliers are reliant on hot water. In addion to ensuite bathrooms, restaurants, bars and lavatories there is increasing demand for


enhanced spa and gym facilies, fuelled by a growing breed of ‘wellness travellers’. So, how does this aect product selecon and heang system design? Dan Marndale, Sales Director at Andrews Water Heaters, discusses.


maintain this when they travel, by choosing hotels that offer enhanced wellness facilities. In fact, according to the Global Wellness Institute, wellness tourists made 691 million trips in 2016 – that’s 104.4 million more than in 2013.


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As a result, hotels are looking for new ways to stand out from the crowd by boosting their health credentials, with everything from complementary, alternative medicine and beauty services to spas, fitness and mind-body activities. However, this wide range of services and amenities can put unprecedented pressure on a building’s water heating system.


Thankfully, the right products incorporated into a well-designed system can help to alleviate some of this pressure by keeping costs and emissions to a minimum. Here are some areas to consider.


Hybrid systems


Commercial systems have historically employed a boiler, which generates space heating and heats a calorifier to produce hot water. Deciding to install a higher output boiler would naturally accommodate a higher demand for hot water, but with better insulation in modern buildings,


Adversing: 01622 699116 Editorial: 01354 461430


DESIGNED FOR EFFICIENCY Catering for ‘wellness tourism’


uperfoods, super gyms and Joe Wicks: a cultural shift towards health and wellbeing is influencing how people eat, drink, work and travel. Consumers who lead a healthy lifestyle are looking to


and a rise in underfloor heating systems which work at lower temperatures, there is less demand for heat.


Installing a separate, dedicated water heater to cater to the hot water demand generally provides lower running costs, energy consumption and carbon emissions because the hot water energy load can be more suitably matched to the water heater output. On top of this, since water is heated from a low mains temperature (at a supply temperature of around 10 to 60 degrees Celsius), high levels of condensing can be achieved, contributing to further savings.


A consequence of more hot water usage is increased energy bills but designing the correct heating system for the building ensures that efficiency savings can be achieved, and heating costs don’t quickly spiral out of control.


Demand paerns


Most hotels experience an uptake in water consumption in the morning from 7-10am and 4-7pm, when guests are preparing for their evening out. But with gym and spa facilities, there may be more constant demand plus additional spikes throughout the day – such as when people shower after a popular gym class. When assessing hot water requirements, it is important to establish the number of demand points, outlet temperature and required flow rates. The basin capacity, length of the peak period and


uWith greater demand for ‘wellness tourism’, hotels and leisure facilies are facing increased demands for hot water.


number of fills during this time should also be considered as these factors all dictate the size and type of water heater best suited and some manufacturers.


22 BUILDING SERVICES & ENVIRONMENTAL ENGINEER AUGUST 2018


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