Fitting a timer to central heating

[MARKYSTEW]

My girlfriend has just moved to a bungalow but her central heating has no timer,all she has is a thermostat with a dial for setting the temp, no ability to make the heating come on and off when she wants.
The boiler is a combi located in the loft
My question is can I fit a timer and if so which type?
Thanks

 

[ShaunCorbs]

Unless your gas safe sorry you can't best to get a gas safe engy out and maybe get the boiler services at the same time for peace of mind