Hight boiler can be fitted?

I am just about to upgrade my heating system from a back boiler to a combi boiler thing is I have just had a new kitchen fitted and have no wall space left for boiler can it be fitted in a pantry and at low level the pantry is on an outside wall so no problem with ventilation just the pantry is under my stairs and is only about 5 foot in hight would this be a problem fitting it thier gas and water pipes easily accessible

Thanks in advance