Quote from the Worcester Greenstar manual
Quote from this forum
So for maximum efficiency who is right? (also worth noting that while Worcester say that there should be a 11C temperature drop on the return feed from a radiator this should be 20C if the radiator is connected to a combi boiler)
TIPS ON ENERGY SAVING
Central heating systems with room thermostats/thermostatic radiator valves.
The central heating control on the boiler should be set to the maximum rated temperature of the central heating system. The temperature of each room can be set individually (except primary room with the room thermostat) using the thermostatic radiator valves.
Quote from this forum
To get the highest efficiency use a weather compensation sensor (and set it up correctly) or with a non-weather ccompensation boiler run the heating flow temperature at the boiler as low as posible that will adequately heat the property. (it will only need to be on max when its snowing!)
So for maximum efficiency who is right? (also worth noting that while Worcester say that there should be a 11C temperature drop on the return feed from a radiator this should be 20C if the radiator is connected to a combi boiler)