Anonymous wrote:If you're handy, or willing to do your own work, there are deals out there.
A few years ago, I knew mine was long in the tooth and needed to be replaced sooner rather than later(it was 20+ years old and the w/ original annode). So, kept an eye out on craigslist for not too old used one. I was able to find the an exact drop-in replacement that was only 3 years old and they were only asking $75 for it(50 gal Rheem gas), -- this was a house that was just bought in Bethesda and although the previous owner had just replaced it, the new owner was doing and extensive renovation/expansion to the house and just wanted it gone.
I already had a torch and solder so just needed new valves and some copper pipe and and a new gas line to complete the job. Since is was an identical unit, everything was straightforward w/ no new duct work or adjustments to the lines, etc necessary.
Here's a 50 gal, new "bought by mistake", asking $550 :
https://washingtondc.craigslist.org/doc/app/d/washington-rheem-gas-hot-water-heater/7580355051.html
I'd offer $300