I can see how that would be very frustrating. I would feel very similar. Is it a subconscious (or perhaps not so much) issue on his part of not actually wanting you to move out? I have a coworker whose father did something similar when she was looking to move out. She did eventually just find a place (she rents) and move. He does still just pop into her house without asking though..
Probably more financially taxing, but it may just work best to move in and have someone come install the water heater when you're able to
Probably more financially taxing, but it may just work best to move in and have someone come install the water heater when you're able to