BSEE HOTEL & LEISURE
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A RELIABLE, SAFE HOT WATER SUPPLY West Midlands Hotel opts for MAXXflo units
When the boilers at Fairlawns Hotel and Spa in the West Midlands were reaching the end of their lives, heating contractors D&K Heating Services turned to Andrews Water Heaters to supply a new system that would improve efficiency and reduce the hotel’s gas consumption.
uThe hotel swimming pool.
60 en-suite bedrooms, six conference and meeting rooms, extensive spa facilities and an award-winning restaurant. For over 30 years, three traditional cast iron boilers with calorifiers supplied hot water for the radiators, baths, showers and basins in 30 of the hotel’s bedrooms. Over the years, the hotel’s Director, John Pette Jnr, found this system increasingly inefficient. “All three boilers had to be on, even when this wasn’t necessary,” he explains. “However, at times when demand for both hot water and heating was at the highest, such as in the mornings and around food service times, the level of output delivered by the boilers wasn’t enough to fully satisfy requirements.”
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uThanks to the new pressurised system, hot water can reach the guest rooms and kitchen quicker without booster pumps.
Reduced energy costs and maintenance
The need to replace the boilers gave John the opportunity to overhaul the whole system. Firstly, radiators which were fed from the boilers were replaced with combined air conditioning and heating units. Next, John had to decide on a new hot water system. Not only did he want a reliable solution, but one that would also help reduce gas consumption and maintenance costs. He consulted
et within the sleepy village of Aldridge, just outside of Walsall, Fairlawns is an independent, family run hotel with over
Martin Gray at D&K Heating Services, a Sutton Coldfield-based heating services company who have worked with the hotel for over 10 years. After obtaining information on the number of sinks, baths and showers, the temperature of the hot water needed, as well as the kitchen’s requirements for catering and cleaning, Martin contacted Neville Radford, Area Sales Manager at Andrews Water Heaters, who proposed three MAXXflo units. The MAXXflo is an award-winning range of fully condensing, fully modulating stainless steel water heaters offering built-in redundancy for outputs of 60kW and above. This ensures an uninterrupted, virtually instant supply of up to 1920 litres per hour of hot water, making them a suitable choice for buildings such as large hotels and leisure facilities. They have an ‘A’ grade ErP efficiency rating, and each model is available with tank capacities of 200 or 300 litres.
Knowing that the hotel already had four other Andrews Water Heaters’ units which were reliably serving the hotel’s conference and spa facilities, Martin did not hesitate in recommending three 90kW units, each with a 200-litre tank, to replace the old boilers.
Continuity
Martin Gray said: “I was confident in recommending the MAXXflos to John because each one of the MAXXflo water heaters has three burners, providing the reassurance that if one of the burners failed, the others would provide temporary back up so that the kitchens and guest rooms would not have to go without hot water. “Also, by installing three MAXXflo water heaters we have peace of mind knowing there are nine stainless steel, fully modulating burners, giving 19.5kW – 274.8kW output. This enables the heaters to modulate and match hot water supply to demand more closely and efficiently.
“Having installed them before, I knew that fitting and commissioning them would be straightforward. This meant disruption to the hotel could be kept to a minimum.”
Martin and his team replaced the old boilers with the MAXXflo units from Andrews Water Heaters in Summer
2016. Delivering higher levels of energy efficiency compared to the old boilers, the hotel has seen a significant drop in gas consumption. Furthermore, John’s team has also found it easier in ensuring that the water is safe at the hotel.
Hygiene standards
“In the old system, water was stored in a large feed tank. This meant that it had to be regularly chlorinated and tested to reduce the risk of Legionella,” Neville explains. “Because MAXXflo water heaters are direct-fired units, the hotel no longer needs a big water tank, making maintenance easier and reducing the amount of space taken up by water heating equipment. MAXXflos’ heat exchangers are also made from high-grade stainless steel to minimise corrosion and offer better resistance to contaminants in system water, helping to ensure that hygiene standards are upheld.”
John Pette agrees: “Now, all we have to do to sterilise the water is to use the built-in anti-legionella program, and turn the temperature up at a time when there is little or no demand for hot water – normally in the middle of the night. The timings and temperatures are all
programmed into the control panel so the process is automatic.”
In addition to making it easier for the team to maintain maximum water hygiene at the hotel, the MAXXflos are also saving time and money when it comes to maintaining other aspects of the system. Previously, additional booster pumps in the building were vital to deliver the hot water to where it was needed. Thanks to the new pressurised system, hot water can reach the guest rooms and kitchen quicker without booster pumps. Their absence also means guests aren’t disturbed by the noise of the pumps.
“I’m very pleased with the new equipment. As a hotel, a reliable hot water supply is critical not only for our guests’ comfort, but also for our day-to- day operations,” John adds. “The Andrews Water Heaters that were already installed are still serving us well, and I am confident that the new MAXXflo units will continue to deliver high levels of energy savings and reliability.”
www.andrewswaterheaters.co.uk 8 BUILDING SERVICES & ENVIRONMENTAL ENGINEER AUGUST 2017
uThe new MAXXflo units at the hotel. The fully condensing, fully modulating stainless steel water heaters offer built‐in redundancy for outputs of 60kW and above. This ensures an uninterrupted, virtually instant supply of up to 1920 litres per hour of hot water.
‘
Previously,
additional booster pumps in the building were vital to deliver the hot water to where it was needed. Thanks to the new pressurised system, hot water can reach the guest rooms and kitchen quicker without booster pumps. Their absence also means guests aren’t disturbed by the noise of the pumps.
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