i have just drained my central heating system to fit 2 new radiators upstairs they are the furthest away from the boiler, and i cant get them to get hot they are cold all the time, i have bled all the system, but they are still cold, both have thermostats on them, both the pipes to each end of the 2 radiators are cold but i did manage to get the pipe to the thermostat on both radiators hot, but the other side to both radiators was still cold, i got these pipes hot by turning all the radiators off apart from these 2, there was a lot of noise in the pipes like gushing water when i did this and then some hot water started coming out into the small central heating system tank in the loft, i have my boiler in the cellar it is not a combi boiler.
please can anyone suggest anything
thanks
please can anyone suggest anything
thanks