I have a 16x32 inground vinyl liner pool that has been 3 months in the works. (long story).... BUT in my contract I have a Hayward HeatPro 140,000 btu electric heat pump. I upgraded because during the initial negotiation phase was told bigger would be better long term. Upfront investment, long term results and efficiency. The contractor installed 110,000 btu and now says that is the upgraded pump he was referring to... I think he knows he messed up and is now trying to rip me off. Is there any reason NOT to force him to install the equipment per the contract? Is there any disadvantage to a 140K btu for this size pool? Any advice is greatly appreciated!!!!!