Dan Tempest (hotun Brand Ambassador)
Dan Tempest sent us a case study of a replacement of an unvented hot water cylinder and fitting a hotun dry trap tundish and hotun detect alarm unit to the new installation.
Dan Tempest – ST Plumbing and Heating.
Dan is one of our original hotun Brand Ambassadors and avid supporter of hotun, and has been using our hotun products to help his installations for a long time. In this case study, dan describes the problems he found on a call out to an unvented cylinder.
Dan Tempest
Upon attending a call out to a leaking unvented cylinder it was clear that the cylinder had burst. Upon further investigation the expansion vessel had failed due to lack of maintenance and was more than likely the cause of the cylinder failure due to working at excessive pressure constantly.
Although the pressure relief had been activating the tundish had been located behind the cylinder and therefore the customer was unable to see this and the outlet discharged to an area of the property that was unused by the customer, meaning they were only aware of an issue when the cylinder burst and water became visible on the downstairs ceiling.
We have now replaced this ageing Santon unvented cylinder that has started leaking, with the Oso Super Coil 150 L, including alterations to the pressure relief to comply with G3 regulations.
An incredible cylinder that maximises space, all pipe, valves and vessels housed under a removable lid, fast heat up times and low heat loss and factory fitted pressure control valves, safety valves and expansion vessels.
When the cylinder was replaced the pressure relief was relocated to a visible location and when fitted with the hotun detect not only provided a visual, it Also provided an Audible alarm to alert the customer to any future issues.
Always check engineers are competent and qualified to carry out the work you need doing on an unvented system; alternatively, save yourself the stress and contact us instead!
Case study Unvented Cylinder Replacement – Pictures
Here are the before and after pictures. As it is now noticeable, previously the tundish could not be seen, with the hotun white 100C 15×22 (product code – HW100C 15×22) dry trap tundish, with the hotun detect alarm unit (not in the picture)(product code HDSW-1P) fitted in front of the cylinder, this now gives an audible alert and visual confirmation of any passing water through the Prv and TPRV.
Please also note that the hotun detect alarm unit allows the installer to write their phone number on the case of the product. This means that they get the call rather than the customer phone up another installer by mistake, and then you lose out on any paid remedial work
To get hold of our hotun products, find out who your local hotun merchant is here https://hotun.co.uk/store-locator/
To find out more about the work dan does please take a look at his linkdin page here ST Plumbing and Heating Gas Specialist Ltd
This concludes the case study unvented cylinder replacement