Ideal instinct boiler and central heating questions

[Mazonas]

Hi,

I have ideal instinct boiler and central heating in a house. I have 3 simple questions regarding the boiler, central heating. Because of the certain circumstances I never need hot water in the property, and I only need to heat the property during the winter months.
Boiler operates in 3 modes; ''off'', ''summer mode'' (in this mode it only heats domestic water) and ''winter mode'' (in this mode it heats domestic water and provides central heating).
The questions are:

1. Is it necessary to have electricity supply to the boiler on all year round? In the manual it says it needs to be on all the time: ''The boiler mains power supply must be left on to enable frost protection''. Can actually anything happen to the boiler if mains power supply is off for a good half a year or even longer (for example during spring, summer, autumn)?

2. Can anything bad happen to the boiler if I never run hot water even if it heats it? Cause in ''winter mode'' (the only mode that I use) it does heat domestic water and provides central heating at a same time even if I don't need hot water.

3. Can anything bad happen to certain radiators (in a long run) if they are turned off all the time? I only need some of the radiators on.

 

[Deleted member 120897]

It sounds like you have a combination boiler, which if left in winter mode, it only heats a tap on demand, unless you have the preheat function activated. Leaving it turned off should be ok, but I do know some older boilers pcb’s/fans don’t like it.

If it’s heating the water, as long as there’s somewhere to dissipate the heat, then all is good.

only thing that may happen on rads turned off for long periods is the trv (if fitte) may sieze.