New boiler

[Nyall]

You'll probarbly all find out soon i'm new to this plumbing lark, but could anyone advise what rating of boiler i would need for a standard four bed detached house with a bathroom and ensuite 13 rads in total 6 of which are small ones. I want to replace the current standard boiler (not with a combi).
Thankyou

 

[Agile]

Probably about 16 kW but that depends on many factors such as size and insulation etc.

Your CORGI registered installer should be able to do the calculations for you.

Tony

 

[Diyisfun]

As AGILE says,
but if you are interested for cost reasons, there are plenty of web sites do a google search, there are many factors that need to be taken account of.