Mate, thinking about it some more, i think my heater wasn't working properly because of a fault with the radiator and/or radiator hoses. I just can't remember now if i had it fixed before my accident. I remember going to a radiator shop on Sydney Rd in Kelso (suburb of Bathurst) but i'm not sure now if it was in 2013 and about this issue. Sorry my memory is so up to s--t. Mark