"MM" wrote in message
...
My new house is equipped, in the garage, with a wall-mounted oil-fired
central heating and hot water boiler. It is an "HRM Wallstar", approx
2' 6" high, 10" deep and 15" wide. There are 9 radiators in total. How
much in litres per hour is this boiler likely to consume? This to give
a comfortable temperature, but not hot, despite the current rather
cold climate (I hate hot houses).

The data you give is meaningless. 9 radiators gives no indication at all of
how big, how many panels, what you consider to be a comfortable temperature
probably does not agree with someone else, what your hot water usage is, the
room sizes, whether you have a detached or a terraced house of bungalow etc
etc etc. So in short its impossible to give any form of sensible answer I'm
afraid.


I had 1,000 litres filled on 21st December (the tank was almost empty)
and was pleasantly suprised the other day to see that the level has
not gone down much at all since then. Obviously, the house is well
insulated. The hot water is, if anything, too hot.

You should have a cylinder thermostat which you can turn down but don't turn
it down too far or legionella might start to grow in your system:-(