Quote:
Originally Posted by CarlR33
Yes, but it does not take into account the cost to replace a new tank after one fails as most new tanks are not lasting the usual 20 years but more like 10 or less depending on flushing schedule. I would be curious of the life expectancy of the tankless units as that could be your money savings over time. If the tankless life span is even twenty years or more you might get your return depending on how long you hold your current home. I think you need to first find out the conversion cost and work it back from there.
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I agree, but it is almost impossible to determine the lifespan of an appliance. I have never had a tank type water heater fail, and the only one I ever replaced was more than 20 years old. I have also never done any maintenance, flushing or otherwise, on a water heater. To me, if your goal is to save money, the initial cost of an appliance is more important than speculating on how long you think something will last.