Worcester Greenstar 15i - problems/is it big enough?

[Jonny333]

Me and my wife have just moved into our new house - a barn renovation that's been nothing but trouble.

Our plumbers have fitted a Worcester greenstar 15i - problem were having is that the house is freezing!

We've approx 100 square meters of wet under floor heating on the ground floor, 4 rads upstairs (cast iron, new, one of them a 4 column beast) and 3 towel rails. The house has 4 bedrooms and two bathrooms. The house is approx 180 square meters with all the ceilings on the first floor are double height.

It's seems like no matter how we set things we can't get all the heating to work at the same time even if we have the heating on full blast for 48 hours constantly.

Any ideas/help would be greatly appreciated!

John

 

[swbjackson]

Go to http://www.idhee.org.uk/calculator.html this will give you a rough idea of what size boiler you should have.

 

[dcawkwell]

I would suggest start by switch off all the radiators and just run the underfloor heating. More than likely the systems has been badly balanced
and all the heat is going through a few of the radiators.
Towel rails are always poor heat producers.

One of the big problems of underfloor is you will need to have
it on virtually 24 hrs a day as it is usually painfully slow to respond.

 

[manortim]

No its not big enough unless its super insulated but being a barn conversion, it will leak heat.