2 unvented cylinders?

[jonnywells]

Recently i went to view a 5 bedroom, 3 storey house and while looking around on the top level noticed a small door and had a look.

Behind was 2 unvented (Gledhill i think) 120L cylinders.

There was also 2 white expansion vessels and also a red expansion vessel?

Does anyone know how this setup works as i have no idea

 

[oldbutnotdead]

How many bathrooms? Wouldn't be a massive surprise if the master ensuite is served by 1 cylinder, everything else by the other or some similar setup to avoid the kitchen tap/cold shower sketch

 

[hard-work]

White is for fresh water and red for CH system water - the water in the rads.

 

[Gasguru]

It's quite normal to have multiple cylinders where the increased capacity is required but perhaps there isn't sufficient height etc.
Look in the manuals...they will give examples of the plumbing required.

 

[OvertonPlumber]

There wasnt enough height for a big cylinder hence doubling up two small ones. Bit lean though most big houses have 400 or 500 ltr unventeds.