We currently have a 24kW Vokera combination boiler which was installed
in the early 90's.
I'm looking to replace it for many reasons not least of which is that
it is completely underpowered for our house.
The house is a four bed detached with two bathrooms. There are nine
radiators and two towel rails connected to the current system.
Current problems are:-
1) The boiler is extremely noisy - needs a new / refurb fan
2) It can't heat the hot water to an acceptable temperature in winter
without reducing the flow to an unacceptable rate
3) The response time on the heating system is appalling - it takes
several hours for the house to reach an acceptable temperature.
Now I know I haven't gone into details about the sizing of each
radiator but my gut feeling is that 24kW - even if it was a brand new
boiler - is not adequate for a 4 bed / 2 bath house.
I am leaning towards either Worcester Bosch or Vailant. There is a
calculator on the WB website that recommends I get either a 37kW or
42kW boiler. Does that sound reasonable?
- posted 12 years ago