Recent content by blueboyjim

Thanks DP and ChrisR. DP the gravity hotwater pipes to the Hotwater Tank are 28mm reducing to 22mm for approx 3ft to connect onto tank and both pipes are very hot. The central heating circuit pipes are 22mm to manifolds then 8mm take-offs. ChrisR i have vented the pump numerous times and am...

Thanks Gasman for your reply. Between work commitmentas and christmas i have not had a chance to do anyfurther work. I can never seem to get both manifolds hot at the same time ie supply manifold hot return cool or when radiators are vented return manifold gets hot and supply cool. Any further...

Hope this is of help to the experts. The system is a basic gravity circulation system with hot water tank. It is a microbore system with flow/return valves fitted to all 7 radiators. As for as i know there are no zone valves or anything complicated like that. The pump is operating and was...

Please Help. Having read previous posts re cold radiators i took advice drained system, cleaned radiators, added a sludge remover and refilled. I am getting no hot pipes to any radiator. The system is a back boiler microbore pipework with bi-flow valves. any suggestions greatly appreciated