T
TBServices
Actually, that's a somewhat lazy posting.
What if client doesn't have the space for the unvented cylinder? Lots of flats in Brighton with not enough storage space so a combi could be ideal.
What if getting the discharge out is impractical? I've had that. Airing cupboard in the middle of a small flat with parket flooring.
Have a customer with 4 bed, 2 bathroom semi. New boiler in converted garage. I argued for an unvented, as they had the pressure & flow rate to make it viable, but they really, really wanted a combi. 3 years later they are still happy with the 35kw Viessmann Vitodens 200 I installed. They take turns in showering. Simples.
This is my long winded way of saying, advise the client as best as you can, taking into account all the relevant information (including customer preference).
I fit more combis than anything else because either a, that's what is there already, b, it suits the application, or c, the customer cannot be swayed from having a combi. If that's the case then their decision has nothing to do with my recommendation.
In this instance, it sounds like the OP has room for a cylinder and has been advised that it would be the best solution. Thankfully she seems open to suggestion.
The fact is, the combi has led to a breed of plumber who doesn't actually understand CH System layouts and controls. They wouldn't know where to fit a pump or how to balance rads. Get one of these guys in your house and you'll end up with a combi, whether its suitable or not.