Quote:
Originally Posted by derekgas
That is because hardly any other boiler is as reliable as the back boilers, very simple operation with few components, the downside is that they are also one of the least efficient.
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They may cost more money in gas but will not cost as much in maintenance over say a 20 or 30 year life span. Come to think think of it I bet no modern condensing combi will last 30 years.
If you are talking efficiency in money terms (which for me is the important bit) you need to work out the cost on install, maintenace, repairs and the gas.
I will keep my back boiler for now thanks with its 5 main components.