Powerflow Unvented Cylinder

Powerflow Unvented Cylinder

Calorifier for London Restaurant

Calorifier for London Restaurant

McDonald Engineers has manufactured and supplied a bespoke 700 litre POWERflow unvented copper cylinder for a prestigious restaurant group in its latest venue in London’s Covent Garden.

The unique design of the Victorian property placed major restrictions on the sizing of the cylinder. However, McDonald Engineers was able to deliver a bespoke copper cylinder measuring 2200mm x 795mm to ensure it could fit the narrow doorways.

Copper Hot Water Cylinders Key to Award Winning Solar Energy Project

McDonald Engineers has supplied 30 of its POWERflow solar cylinders to an award winning housing project in Scotland at the insistence of an architect who recognised the importance of using copper cylinders with solar energy.

The project, which went on to win the prestigious Green Apple Environmental Award, saw McDonald Engineers supply a combination of 180 litre and 210 litre POWERflow cylinders fitted with high performance finned copper coils to deliver maximum performance.

McDonald Engineers Deliver Unvented Cylinder for Historic Castle

McDonald Engineers have shown their ability to deliver bespoke solutions for every type of application, by designing and manufacturing a 360 litre unvented POWERflow cylinder for a 16th century castle.


Invercauld Castle was originally built as the home of the Clan Farquharson however it now operates as a luxury shooting and fishing lodge in Aberdeenshire.

McDonald Engineers were recommended to the owners of Invercauld Castle when they chose to upgrade the direct vented system that supplied hot water throughout the castle.

A top class cylinder for the world class National Library of Scotland

A top class cylinder for the world class National Library of Scotland

McDonald Engineers can now claim their POWERflow unvented cylinder is in a national institution following a recent project which saw one if its commercial grade cylinders being installed in the National Library of Scotland.

The POWERflow was installed as part of a routine maintenance programme and due to the height of the building, Scotland’s largest library required a 4 bar working pressure copper cylinder manufactured to their exact specification.

McDonald Engineers Supply Edinburgh’s Newest Hotel

McDonald Engineers has demonstrated its expertise in the hotel and leisure sector by installing its POWERflow commercial cylinders in Edinburgh’s newest hotel. Situated in the Bruntsfield area of the city, The Links Hotel, has just undergone a major refurbishment spending in excess of £1million pounds with all 22 of the rooms undergoing a complete transformation. And with such a large investment, owners Kingdom Hotels were determined to install a quality hot water system that would meet its exemplary standard of quality.

POWERflow 2000 Unvented Mains Pressure System Installation Course.

Another successful POWERflow 2000 Unvented Mains Pressure System course has been completed. If you require to sit the course please contact us for details, as dates can be arranged to suit. The course involves a tour round our factory to see the manufacturing process for copper cylinders. We have a demo display with our Unvented Cylinder and also our THERMflow Thermal Store and also a solar cylinder. Anyone wishing a factory tour is more than welcome at any time please contact to arrange a suitable time.

Subscribe to RSS - Powerflow Unvented Cylinder