The folk who slag off weather compensation are those who can't be bothered to keep up with improvements in technology during the last quarter of a century, and who also can't be bothered to set it up properly.
That is a rather bold statement. As it so happens, I promoted he boilers before most others did, and dito for digital controls, programmable roomstats and wireless.
It is so simple, and so effective.
Simple, maybe. Effective? Adding wc to he boiler decreases the gasbill by a maximum of 2%. On installations with "ovesized" rads where the boiler is permanently set to a return temperature of below 50, the savings are virtually nil.
I would not call a saving of 0.something % very effective.
The heat requirement of a house is directly proportional to the temperature difference between outdoors and indoors.
True as that may be, it does not automatically make wc a useful addition.
People are incorrect or misinformeed who state oversized radiators, the radiators are not oversized, they are sized correctly to give the required heat output for the room at a flow temperature 50°C doing this gives the customer a more efficient heating system and is more suited to condensing boilers