Megaflow Unvented Indirect System Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[nick_ukay]

Hi All

Does anyone know the correct procedure to drain the central hearting system. The reason i ask as i would like to fit a heated towel rail in our upstairs bathroom which will require changing the vales

I have a Megaflow HE indirect unvented system with a gas boiler