I bought a buffer tank for the Geo hot water heat.
Marathon 50 Gallon Electric MR50245
https://www.rheem.com/product/marath...nty-msr50245c/
hopefully it lasts a very long time and keep the water hot a long time.
I found a 20% off sale and free shipping I will also get a 55% tax credit on it.
I did not add the 10K auxiliary heat coils. They are not covered under the tax credit. They don't mount in the Geo Unit and they need another breaker that my current panel does not have.
The local installer usually does not install them around here anyway.