New Build Heating Problems

Heating problems are common in many new build homes. Read this on the Montgomerie Park Residents' Association Site and find the results of their poll:

"Anyone on the Persimmon estate (or any of the others) have an issue with the heating of their property? I have been having a bit of a debate with builder over undersized radiators.

They have sent me some literature from company who carried out the U-value calculations for property size and construction which basically tell you the radiators installed offer the correct output."

Being from a technical background I'm aware of the whole energy conservation issue and why heating installations cannot now be routinely over sized. In saying that, am I not entitled to expect a comfortable level of heat in my home without the boiler having to run for the best part of the day with roomstat turned right up? Even at that I feel the house isn't as warm as it could be.