There is not a filter on the "regular" tanks. In the tankless systems, water passes through a much smaller area getting heated almost instantly.....thus the increased potential for mineral deposits hurting the systems.
I have installed both. In the tankless systems, the gas ones are more efficient. They do require a larger gas line...(3/4") The tankless electric require a minimum 200 amp service, since they take three 40 amp breakers....(that is a lot of juice).
Tankless systems cost much more, and parts are sometimes hard to get. I like the space saving aspect of them, but some question the real savings, and the dependability.
They are cool to install...instant hot water...an endless supply. Of course, I've only installed them up north here in basements. They would be just as easy to install in a garage. They require a 7" opening to the outside. I've installed the Takagi brand...but they are all quite similar.
Frank D.
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The Plantation in Leesburg, just south of you good people. Love being a Floridian!
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