need a new extenal oil boiler

[wozie]

Hi all just joined and looking for advice please ,we are installing a new heating system in our house and looking to fit a external oil boiler size wise it will be either 15-20kw size and also fitting a solar water panel on the roof at same time the house is having renovations done and extension added so need to replace existing system with more modern one we are putting down underfloor heating and 3-4 radiators where we cant put underfloor what type and make of boiler can anyone recommend please and what type water tank, there will be 2 showers and one large 230 litre bath was thinking of a 300 litre tank well insulated mind really need some expert advice on this matter many thanks for any help given

 

[dcawkwell]

Grant oil boiler. Although with underfloor you should be thinking
of ground source or air source heat pump.

Underfloor heating, slow to respond, too hot or two cold. Expensive to
install and to run. (Just my view and the only times I see it are when customers
are complaining about it)

Solar hot water panels. Waste of time and will never pay for themselves.
Just my view. Some will say otherwise.