Going to look at a Harman P43 this evening and was curious about what kind of value it would have? It is 8 yrs old nothing has been replaced on it yet and looks really nice in the picture it has. I don’t know what the inside looks like yet but outside looks new and has not been painted. Reason for the owner selling is it is not big enough to heat their 2400 sq ft house. It was their sons but he moved and gave it to his parents so they tried it And isn’t big enough. What should I look for? He’s asking $1500 for it and of course it’s a 2012 model. Thanks