I have installed my own tankless heater (gas) in a different home.
In TV I have tankless and in a second home in TV a tanked electric heater.
On this forum I am known for my extensive home automation/monitoring and my DIY for, well, everything. And a distain for opinions not based upon actual facts.
Now to dispell common myths and inaccuracies.
You don't use much hot water, I know because I monitor both hot and total water consumption, separate from irrigation. Roughly 50% of your total or 25 to 45 gallons/day covers pretty much everyone of every living style.
No you DO NOT save a dramatic amount by not having to keep a tank of water hot. I know because the electric monitor checks electricity consumption 10,000 times per second. I completely under the standby costs of a water heat. The cost to heat the water from cold is where the money is at. Speaking of money an electric heater costs about 12.00 a month for most people. I know because I rent my home and I see different living styles as they relate to electricity consumption by people of varying backgrounds.
Tankless heaters are rated by flow. Two gpm is plenty and you will never run out of hot h2o. A tanked heater with a 50 gallon tank has 28 gallons of piping hot water, by comparison.
I flush mine annually for thirty minutes. Easy.
My opinion is indifference, I only want tankless because I get more space in the garage. I used to think the heater made a difference, now I can worry about more important things.
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