I have no ideas how long it takes to get my 150l tank back up to temperature. I occasionally see the boiler fire up to do it in summer - for maybe half an hour tops.
I do know that there is always enough hot water at 60C and 2 bar pressure for any shower or bath
They must be tiny windows then, and dripping with condensation in winter.
A cheapo 24kW combi is perfectly adequate for one person and more suited to smaller houses, provided the mains water can supply sufficient pressure and flow.
On the other hand if you can do the sums, it can only point to you being more "competent" than the average Gas Safe installer. So possibly a bit of an own goal
That is my view and policy. It also saves space, thermal losses for a hot cylinder with the downfall of being less reliable and having no backup hot water supply.
For a larger house where there are multiple occupants in the household then a hot water cylinder approach with a smaller boiler seems to make more sense.
Thanks, I forgot about the wayback machine.
Does anyone know how long the wiki will be down?
Looks good stuff, but £15-20/m. Mind the way copper pipe is getting more and more expensive you never know it may be cost effective and convenient for DIYers!
We had a 20 year old 24kWh boiler replaced in the autumn - it was fed by a fairly long15mm run. To play it safe and not change the pipework the installer put in a 18kWh unit. As it is a more efficient condensing boiler it seems to do pretty much the same job as the old one.
My 30kW boiler gives a very respectable shower.
Hot water is that it takes a good 30s to come through - tedious and wasting water.
The Natural Philosopher brought next idea :
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