Hi, I put a new central heating system in my property 3 years ago and used danfoss trvs. I have never managed to successfully balance the radiators using these trvs and wondering now if I've fitted them properly. It's a fine line from hot to warm eg each trv has 5 heat settings but heat setting 2 is just as hot as a fully open valve on heat setting 5, when I turn it down to 1 the radiator is hardly warm. So basically to regulate the heat I have to fine tune the valve between heat setting 1&2. Is this right??