Hi,
My central heating/hot water system involves a 1984 AD boiler, a cold and a hot-water tank with a thermostat and a programmable thermostat in the hall for the heating. The two systems share a motorised valve.
My lounge is open on three sides and has huge windows. Although its radiators can heat it, when the rest of the house has reached the desired temperature, the thermostat limits the output and the lounge starts cooling down disproportionately to the rest of the house.
I would like to have a second zone installed for the 2 lounge radiators, with its own programmable thermostat. The questions I have are as follows:
- The installer has access to the pipes under the floor within 2m from the boiler; that's far from the lounge. Because of annoying wooden floors, there is no access to the pipes nearer the lounge. Is that a problem?
- Will the system need a by-pass radiator in the second zone? (Actually, am I right in thinking that I can do away with the TRVs in this small zone?)
- Will I need to replace the existing, 3-point motorised valve with a more complicated one, or do they just add another one somehow?
Many thanks in advance,
Kostas