Took a look but could not see anything which answered the question. I know this can only be a general guide, but..... Two people in Big Gertie - I have a 7KG bottle and use it daily just for the cooker (1 meal on hob, 1 meal in oven) and water heater (dishes and 1 shower session daily). How many days roughly could I expect? If I also use the blown air heating, how many days then? If I also use the fridge on gas, how many days then? Hope I have asked the question clearly!