I would think removing a room stat is a backward step, the reason being is without a room stat you can normally only control the temperature of the water moving around your heating circuit(rads) and not the temperature of the room, if you only want background heat and turn down the boiler stat you can effect the performance of the hot water cylinder, it's possible to have a boiler that can control the house temperature like a room stat but they tend to be high end boilers and won't work with different zone as you may need different temperatures in different zones hence the room stats, the idea of going to the trouble of zoning a area and not having it controlled by a room stat is silly, if you download the chess booklet: [broken link removed] and have a read, it will answer a lot of your questions on level of controls. I would write down what you want your heating system to do for you and what level of control you want, then tell your plumber (as your the customer) to get on with it and stop being lazy(as identified by MAJJ), i find most plumber don't do there own wiring and try to stay as far away from it as possible, Gary.