Please excuse me in advance as I am not well versed in this area.
I currently have a Williamson DHW-56 indirect thats approx 17 years old.https://www.williamson-thermoflo.com/sites/default/files/field-file/w_dhw brochure.pdf
My boiler is a Burnham 206PV that's about the same age.https://www.alpinehomeair.com/related/Burnham 2PV Series Brochure.pdf
I have 6 adults and 2 teens in a Mother/Daughter house.
When the kids take showers they are long and by the time I get in the water gets cold fast.
When they run it down I have recently been getting rust which I was attributing to the age of the tank
I assume that it is at the end of its life.
I do not want to have the issue of running out of hot water going forward so was looking to replace what I have with something that would work properly with the ratings of my existing gas boiler.
I was looking at the turbomax as an option but dont know if thats my best choice opposed to the "regular" indirect units.
Also, if it is...what size would be recommended? I was looking at the 45 and 65.http://www.thermo2000.com/pdf/en-US/specs/specifications_turbomax.pdf
Any help or advice would be greatly appreciated.
Thank you very much