By the time hot water gets to other end of house (both bathrooms), it is only warm. House is a adverage 2 bath home (1750 sq ft), but existing water heater is at end of house near clothes washer and kitchen. Should I …
— install small (1/2 size) water heater at bathroom-end of house, in existing hot water line?
— install a 2nd water heater at bathroom-end of house, and supply it with cold water?
P.S. I plan to bypass existing under foundation copper plumbing – starting to corrode and leak. Okay to use PVC in attic?