As we've previously mentioned, Access Training have made a few changes to the way we run the Unvented Cylinders plumbing course recently. With the new City & Guilds syllabus our course follows, students are now required physically commission and maintain a cylinder in order to achieve the qualification. This is important as it will make sure candidates are physically familiar with unvented cylinders rather than just having a theoretical knowledge of how to handle them. Knowing in theory is all well and good, but this is one area inparticularly that can go wrong without the right skills and know-how.
An Unvented Cylinder is a hot water storage system that relies on storage cylinders fed directly from cold water mains and do not incorporate a vent pipe to relieve excess build-up pressure to atmosphere. The pressure for the hot water system is then derived from the mains pressure supply rather than a cold water storage tank. The advantages of using such a system include:
- Balanced pressure in both hot and cold taps for showers
- Higher water pressures available for hot taps
- No storage cistern, eliminating any risk of contamination
- Can be fitted anywhere in the house, making them suitable for one-storey dwellings
- Quicker to install with less pipework and no cold storage tanks needed in the loft
- Can possibly be used with smaller diameter pipework
- Gives architects and service designers greater flexibility of design
Unvented cylinders are also the only systems currently used with renewable energy supplies such as ground & air heat pumps and underfloor heating, due to their nature of being almost 100% energy efficient. This makes them even more of an important thing as households strive to become greener and save energy (as well as money!).
However despite these numerous advantages installers should still show great caution and care when dealing with unvented cylinders, as failing to properly install them is extremely dangerous. Unvented hot water systems usually operate above atmospheric pressure and unless the right measures are taken to prevent overheating, the results can be quite explosive to say the least. Just have a look at this video of what can happen if adequate checks and protection haven't been made:
VIEW ON YOUTUBE
But don't let this video put you off them. As long as they are installed correctly with all of the proper safety precautions in place unvented cylinders are perfectly safe. All plumbers handling unvented cylinders are required to be qualified in accordance with Part G of the Building Regulations, which can be achieved through the Access Training Academies Unvented Hot Water Cylinders course.
For more information on our Unvented course or our wider range of intensive plumbing courses, please take a look at the plumbing section linked on the left hand side of the page. Alternatively, you can speak to our course advice team to have any questions you may have answered personally - simply call 0800 345 7492 or fill in the information form provided on this website.
This week the British Lung Foundation is launching a new campaign "Take 5 and Stay Alive" to promote awareness of the dangers of asbestos, particularly among tradespeople who may be dealing with it every day.
According to official statistics, on average six electricians, four plumbers and eight joiners in UK die from asbestos exposure every week - making it the single greatest cause of work-related deaths. Though the use of the material was banned in 2000, any building made before then may contain it as it was commonly used as insulation. While undisturbed asbestos is relatively harmless, when disturbed the fibres can become airborne. When inhaled, asbestos fibres can cause a range of illnesses - including the terminal chest cancer mesothelioma. The tiny invisible particles stick to clothes, meaning that as well as risking their own lives, workers can be unknowingly putting their family members, colleagues and friends at risk.
The "Take 5 and Stay Alive" campaign aims to ensure tradespeople have the knowledge to identify asbestos and what type it is, with them then being able to assess correctly whether they have the right training and equipment to deal with it safely.
British Lung Foundation chief executive Dr Penny Woods said:
"Twice as many people die from asbestos-related illnesses than on the roads each year in Britain. It's the biggest work-related killer, and the numbers of deaths associated with it are rising each year. Sole traders and people working for small companies are often under particular pressure to take jobs and deliver quickly, and this can sometimes put them at particular risk of asbestos exposure.
"But it's not just tradespeople putting their own lives at risk. If asbestos is disturbed the particles can affect others too, and we know several women who have died after years of washing their husbands' contaminated overalls.
"Our Take 5 and Stay Alive campaign aims to give tradespeople the tools to act responsibly. We want to ensure they can identify asbestos wherever and in whatever form it might be present, and know how to deal with it safely. Our message is simple - taking just five minutes to assess the situation could save your life, and keep your family, friends, clients and business safe from exposure to potentially fatal asbestos dust."
More information on Take 5 and Stay Alive can be found on their website, which contains plenty of information about the different types of asbestos, where it can be found and the illnesses it can cause.
In addition to this campaign, former electrician Alan North has uploaded a video to YouTube describing his experiences after he was diagnosed with mesothelioma earlier this year. While this is unaffiliated with the BLF's work, it shares the same message about the dangers of mishandling asbestos. You can view the video HERE.
It looks like the Gas Safe Register aren't the only ones calling for safety awareness this month.
Following (but unrelated to) yesterday's news of the Health & Safety Executive cracking down on a Bolton building firm's unsafe scaffolding, HSE inspectors have announced that they are launching a month-long safety campaign on smaller reburbishment jobs across Britain.
Unannounced inspections will take place on sites where refurbishment or repair works are underway, focusing on working at height and work which could expose builders to harmful dusts. However their inspections will also take a look at whether adequate welfare facilities such as toilets and handwashing facilities have been provided.
Heather Bryant, HSE Chief Inspector of Construction, said: “Too many people die or are seriously injured every year on Britain’s construction sites as a result of entirely avoidable incidents.
“Just as importantly, workers are unnecessarily being exposed to serious health risks, such as asbestos or silica dust, which can have fatal or debilitating consequences.
“Often we find it is smaller companies working on refurbishment and repair work who are failing to protect their workers through a lack of awareness and poor control of risks.
“This initiative provides a chance to engage with these firms to help them understand what they need to do, so they can put in place the practical measures needed to keep people safe. “However, let me be clear – if we find evidence that workers are being unnecessarily and irresponsibly put at risk we will not hesitate to take robust action. Companies who deliberately cut corners can expect to feel the full weight of the law.”
Via Construction Enquirer
Are you looking to switch careers and join the construction industry as a carpenter, bricklayer, plasterer, tiler or decorator? Not sure where you can get the qualifications to join this exciting, challenging and rewarding sector? An Access Training course could change your life. With the help of our expert teaching staff, you'll work through an intensive construction course that gets you the required qualifications to become a professional tradesman. To find out more, have a look at the courses pages on this website or contact us on 0800 345 7492.