I've looked at the in-line filter option, but still looking around for something I can do locally. I don't care much for mixing my hot domestic water in either. What happens when I flush the toilet? Will the RO get a spike of very hot water?
I've found some small, 4 gal water heaters, but I can't seem to find out how low the temp can be set without buying one.
One Option I've found is to use a water heater element in my bucket, I can get a 1000W element for $10, then just need to find a heavy duty thermostat to control it. I'm sure if I could get the bucket up to 80 degrees I'd be in the ball park.
Will keep you posted. Would you prefer I post it here or just PM you? As an engineer, there's nothing I love more than a good technical problem.
Phil