50 HPM 1213

HPM December 2013

Got a story? Ring us on 01732 748041 or e-mail twood@unity-media.com SHOWERS,WETROOMS&ENCLOSURES Demystifying thermostatic technology Thermostatic technology has become fairly widespread within the bathroom industry. Rachel Smith, marketing manager at Bristan, discusses the benefits... Today’s homeowners are increasingly looking for comfort when showering, thus a consistent, balanced water temperature - to avoid cold water shock as well as hot - is key. The added benefit of a thermostatically controlled shower is the prevention of scalding, which is particularly important for homes with children or vulnerable adults. With this in mind, over recent years mixer showers with built-in thermostatic features have become commonplace. In fact, most mixer showers available on the market today include a thermostatic control. This type of shower regulates the temperature to deliver a more comfortable shower. Some thermostatic mixer showers are available with extra independent accreditation, such as TMV. The TMV level (i.e. two or three) is approved by Buildcert, an independent testing and certification body, and the level depends on the application, with guidance being available for required, recommended or suggested best practice. A TMV2 approved shower could be appropriate for a household with young children, for example. Meanwhile, TMV3 valves are tested in line with NHS Model Engineering Specification D08 - making them suitable for use with society's most vulnerable, such as the elderly and less able. Tested to a higher standard than TMV2, TMV3 testing looks at factors like endurance testing of the thermal element, temperature stability, thermal shut off and more. While there is no legislative requirement to do so, we would always recommend TMV3 showers for commercial applications - for example, those WWW.HPMMAG.COM Electric showers work completely independently to the home’s hot water system fitted in leisure centres or hotels. Alternatively, in the case of commercial showering, an installer could recommend a separate thermostatic valve (known as a TMV) on the pipework to control water temperatures. Thermostatic mixer showers and TMVs provide hot water safety and comfort, but what about customers that want - or can only have - an electric shower? Electric showers still have a large market share, and, just like any other type of shower, can pose a risk of scalding or cold water shock if there’s a sudden change in water temperature at the outlet. If someone in a household is using a standard electric shower and someone else draws off cold water from another outlet, the temperature of the shower will fluctuate, potentially causing discomfort or even a scalding hazard. This can occur whether it’s a small amount of cold water (for example, if a kettle is being filled) or a large amount (for example, if a washing machine is being used). So, when recommending an electric shower to customers, especially those with young children, or who are elderly or vulnerable, it’s worth considering one that also has thermostatic capabilities, especially as they are now becoming more affordable. However, it is worth understanding that since electric showers operate in a completely differently way to mixer showers, it is not simply the case of manufacturers replicating the same technology. Mixer showers are fed by a hot water storage tank or boiler, plus the cold water supply, so thermostatic varieties regulate the water temperature through a mixing valve, which blends the hot and cold water. In comparison, electric showers are fed purely by cold mains water, which is instantaneously heated up as it passes through the shower unit. As there is no thermostatic standard for electric showers, apart from those installed in care environments (which need to be BEAB Care certified), different manufacturers tend to take different approaches, rather than the industry using one specific solution Though thermostatic showers vary, all models are designed to quickly address temperature rises, ensuring a safe and comfortable showering experience for the homeowner, and an easy life for the installer. enquiry number 149 ADEY MagnaCleanse For your chance to win this prize, simply enquire to answer A or B in response to this question: ADEY’s MagnaCleanse process could be achieved in...? A: Two hours B: Six hours MagnaCleanse from the UK’s number one magnetic filtration manufacturer, ADEY Professional Heating Solutions, provides a fast and effective way to flush central heating systems, helping to improve performance and efficiency. MagnaCleanse has transformed traditional power flushing practice and could be achieved in as little as two hours. The process removes all suspended black iron oxide sludge in just one pass and provides ongoing protection for the system with the installation of a MagnaClean filter. ADEY’s MC3 chemical cleaner helps to cleanse the system while water is only disposed of at the end, making a considerable saving. PRIZE 9 Answer A 150 REMEMBER: enter all 12 competitions, and you could win the grand prize - the lot! Answer B 151 HPM’s Festive giveaway PRIZE 9 50 DECEMBER 2013 HEATING & PLUMBING MONTHLY


HPM December 2013
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