am looking at putting an offer in on a house but have concerns about how old the boiler is. The house is empty so cannot check with owners - all I know is that it was last serviced beginning of 2007. It's a Potterton Profile 60e and looks quite dated. How long ago was this model available? Is it likely to need to be replaced soon???? Any help or advice would be much appreciated as should I buy the house don't want to be faced with big bill!