Back boiler help please.

Solwaykid

I have a bit of a puzzle.I seem to have hot water constantly.

Not a problem in itself but usually at this time of year, with the central heating off, I would either put the timer on or an hour boost if I want hot water. I haven't done either for a weeks so it's not residual/saved hot water and the immersion heater is off.

The pilot light is still lit on the back boiler when I look under the gas fire.
What else do I need to investigate. I don't want a surprise when the gas bill arrives, I spend the summer months playing catch-up direct debit-wise after the winter.

Hope someone can help.
Thanks in advance.

Oh and the boiler is checked annually as part of my tennancy.

ormus

what controls do you have?

Solwaykid

The controls are less than a year old and are the basic 24hour clock on a dial with lifting pins and two sliding switches with four options (off, on once etc).
Boiler and fire is a elderly Thorn House Warmer. There isn't a room thermostat anywhere in the house..it's either hot or not.

Still puzzled. What's your line of thinking ?
Thanks for replying