DittoI don't know about other people, but the reason I have a 35kW boiler is to I can fill a bath in a reasonable time without having to have a tank.
but the reason I have a 35kW boiler is to I can fill a bath in a reasonable time without having to have a tank.
I wanted the space used by the cylinder to make a third bedroom, and I fitted an intent heat boiler for the domestic hot water in the garage, not a combi, two independent boilers, this was in the 80's seem to remember called a Main 7. The boiler could modulate, but not to the extent of boilers today, and in the summer had problems with the shower it was not using enough water, but it did not require any electrical connection, so with electric power cut still had domestic hot water.It has gone full circle...... Combi boilers were developed to provide instant hot water in homes that were too compact ( too lacking in space ) to have a hot water cylinder. Sensible idea, but now the availability of quick and easy to install combi boilers ( preferred by many installers and housing developers ) is encouraging people to go without a cylinder.
but it did not require any electrical connection, so with electric power cut still had domestic hot water.
I note some Worcester Bosch ask for type A RCBO/RCD this was posted by @stem View attachment 246621 and I have heard some will not work without a good earth, some thing to do with the mother board, so not sure if they will work with an inverter?
Is that not a problem with all boilers? My ancient boiler (not to mention pumps/valves etc.) certainly needs electricity to work, which is one of the main reasons why I got a small generator many years ago.That is another problem with combi boilers, when the electric supply is lost there is no way to heat water.
No the old Main 7 did not need an electric supply.Is that not a problem with all boilers? My ancient boiler (not to mention pumps/valves etc.) certainly needs electricity to work, which is one of the main reasons why I got a small generator many years ago.
Kind Regards, John
I don't know what a 'Main 7" is, and/or how it got into this discussion, but my ~30 year-old Ideal boiler certainly needs an electricity supply for the gas valve to work (i.e. 'open').No the old Main 7 did not need an electric supply.
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