Help - new house has a system boiler!

[mareep]

In our old house we had a combi boiler which worked great for us. The new one has a system boiler with a massive tank (it heats more water than we used at the old house in a day.

Is there anything we can do except 1) rip out a fairly new boiler 2) heat lots more water than we need or 3) only heat water every other day?

None of these seem like great solutions to us.

somebody check my maths please

is it 34p a day?

@PigletJohn
Thanks for the information, you are so knowledgable!

Heating hot water is the most energy-hungry element of a combi-boiler. You may only heat what you use, but that water has to be heated from cold to 50 degrees instantly and that uses a lot of gas. It's expensive to do that and you may find your system boiler is cheaper that a combi.

You might want to investigate off-peak cheap electricity tariffs so your hot water heats up overnight and you can then use it during the day.

sorry I'm obviously obsessed and barmy.

found a months gas bill from summer
hot water cylinder

25p a day for usage,
and standing charge about the same

copy and paste

Gas
Standing charge 31 days at 25.50p per day £7.91
Energy use charge 245.89 kWh at 3.06p £7.52

@PigletJohn
I don't think you are barmy at all.

We have a big tank and our boiler is quite efficient- we heat the hot water for 20mins twice a day and that keeps it hot enough for all our usage.