- Advise me – Oil fired central heating – combi boiler?
- rob jacksonMember
Currently have Oil fired central heating using a standard boiler with cylinder (backed up by an immersion heater)
Mrs wants more space and is pursuing a new combi boiler to replace ours to remove the hot water cylinder to enlarge the bath room marginally!
What do i need to know (nothing atm!!) – efficiency/performance/cost/changes to the current system if any? Is there a secondary way to heat water should the oil run out in bad weather like last year?Posted 4 years agotrail_ratMember
First up The oil didnt run out due to bad weather. It ran out due to bad planning.
Secondly , when i was looking it was advised that for oil combis only to look at worchester bosch or grant. Having had both in rentals on oil in previous houses i put my money on a grant – and stuck it outside at my back door….whichis great till you have a multi day power cut which lets the innards of the boiler get cold/freezy on the cold water side – the heating side has antifreeze in ( we had one this year ) …. How ever i want a generator for other purposes so as part of that it can run my boiler in the are powercut
How ever unless your boilers spackered beyond repair like mine was then i wouldnt bother replacing with a combi, maybe look at relocating the tank ?Posted 4 years agohooliMember
Best advice is to get a few plumbers around to give you advice and prices.
We had our oil boiler replaced last year at over £3 grand and all plumbers advised that a combi wasn’t suitable. I cant remember why but it could have been the poor water pressure we have.
Perhaps seeing all the costs, she might decide the current bathroom size is OK 😉Posted 4 years agogonefishinMember
The decision on combi or not should based on the number of hot water users. Obviously you will have a kitchen but if you have more than one bathroom\shower room I’d go for a system with a tank. It’s unlikely that a combi will be able to cope with the range of hot water demands that a house like that will require.Posted 4 years agotrail_ratMember
Only if its sized wrong.
My parents boiler was sized so to run 2 thermostatic mixer showers at the same time…. Does that no bother – rarely has to mind you
If thats a worry for you you put a leccy shower in one room
When was the last time you ran 2 baths at the same time ?Posted 4 years agoYakSubscriber
We’ve got an oil combi – a Potterton Statesman. It doesn’t cope that well with multiple HW use.
I’d prefer a tank to give a decent HW supply at peak demand times. I’d also go for a tank to give options for renewables, eg a duel coil for renewable HW, or an EMMA unit to give HW from supplementary electricity production if we ever install PV. Tank gives you the back up immersion too.Posted 4 years ago
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