Difference between an unvented direct single coil solar cylinder and an indirect ?

[brizey]

Hi all. I have a customer who has bought a Potterton direct single coil solar unvented cylinder which was to be connected to a solar panel. The situation has changed and now wants it to be fitted at another property to a central heating system. I have called Potterton to see if this is ok and they have said no but could not tell me why. Can anyone tell me the difference between this cylinder and a normal indirect cylinder. Many thanks.

 

[galaxy_plumbing]

Re: Difference between an unvented direct single coil solar cylinder and an indirect

perhaps position of the coil. do you have specs? I guess you already have your answer from manufacturer.