Hi we are planning to replace an old boiler in our 5 bed house, 2 bathrooms, 13 rads. Two floors. I am keen that we can run both showers at once with the new system. Both say that a large combi - 29kw - should do the job. But if we prefer we could go for an unvented system (flow / pressure etc seem to be fine for an unvented system).
However they have different ideas about the unvented system. One says a 27kw boiler with a 210l cylinder, with the tank located upstairs. Also recommends a powerflush for the system. The other says a 24kw boiler with a 170l tank in the garage (i.e. next to the boiler). No powerflush but chemicals in the system.
The larger boiler / tank quote is for all Worcester products. The smaller is for Main branded products (I think these are Baxi). Price difference overall is £690 overall on the unvented quotes (the combi quotes are very similar to each other). I have excluded the powerflush from these costs as I suspect we would need this regardless of fitter.
Can anyone advise on the best option(s) please? I am totally confused. Thanks for reading this long post!
Please or to access all these features
Please
or
to access all these features
Join our Property forum for renovation, DIY, and house selling advice.
Property/DIY
Boiler - help - unvented system?
6 replies
Koala2 · 25/07/2015 21:09
OP posts:
Please create an account
To comment on this thread you need to create a Mumsnet account.