P
peteh20
been to an installation which had older hep2o without the barrier on the ch side. Hep fittings direct off the rayburn into a boxing and cupboard which cannot be accessed then upto a false ceiling. The pipework can then be found in the cylinder going into a hep manifold feeding the 8 rads 4 of which are totaly blocked up as the inhibitor is jellified in the cold feed to the system and header tank. The whole job was done by a DIYer before he sold the property about 4 years ago, just a time bomb. Customer is distraught with the thought of repiping the system so new boiler in new location. Thanks DIYers everywhere