Underfloor heating is far batter than any covnentional radiator system and it gets very warm in the room with a very even distribution of heat so no cold spots in the room either, so no need for any additional heating. The temperature of the water running through the pipes is also lower than the temperature needed for radiator systems so it is also more energy efficient. But alas it is not something to DIY. Even the majority of fully qualified time served plumbers I know will not fit these. As it is a complex web of manifolds, pipework, pumps and controls. You will not however be dissapointed it is great. I have never had a bad word said about the systems I have fitted and my customers love them. Do not get confused with or go for the elecric under tile heating systems you see in DIY shops and chains, it is only designed to warm the floor not the rooms, So it is nice to walk on with bare feet. It is realy just a luxury for bathrooms etc...