Single Flat Plate Collector A single panel flat plate system. Connected to a 190 litre vented cylinder this system supplies a small family with one bathroom. Single Flat Plate Collector The same system as above, viewed from below. The panel takes up approximately 1 by 2 metres. Vented Cylinder A 190 litre vented cylinder in an airing cupboard. Collector Installation In a lot of cases collectors can be installed working from a mobile scaffold tower. Unvented cylinder A 250 litre unvented cylinder being installed in a stair cupboard. For people used to combination boilers a cylinder this size can be a shock! You can normally find space, and the disadvantages are small compared to the advantages. Garage Installation An existing boiler and cylinder situated in a garage witing for the solar installation..