Combi advice and general new system questions

[marktaunton]

Hi All
Advice please!
Just had gas mains fitted in an old townhouse so now need to get moving with sourcing rads and a combi boiler so some questions:

How do I work out the size of boiler required or is it easier to advise on size by the number of rooms?
The house has sitting room, dining room, kitchen, downstairs bathroom, two bedrooms on first floor and a further bedroom on the 2nd floor, not particularly big house but would rather go for a larger boiler working less than a smaller boiler, does that make sense?
Also away a lot so wanted to be able to fire it up on an iphone.

Can the combi boiler be fitted with only the hot water piped in or do all the radiators have to be connected as well, I wanted to fit it all in stages but get the hot water running for the bath and shower first if possible.

Is it ok to plumb it all in with poly pipe or do you still use a lot of copper?

Finally for now the gas meter is at the front of the house and the boiler will be about 15mtrs away in the kitchen, what size and type of pipe should be used and can it be run on the skirting or does it have to be buried?

That's it for now,any advice much appreciated.


Thanks

Mark​

 

[Dotty]

Let your gsr worry about it all.