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Re: Questions about water circulation

Reid Kerr wrote:

> Rather than using a powerhead to generate flow, would it be possible to
> use a wide, shorter lift tube, with a submersible heater positioned
> directly IN the lift tube?  In this way, one might be able to use
> convection to generate EXTREMELY gentle water flow, much more so than
> with any pump.  Has anyone contemplated/tried this?

What about having no lift tube, but heaters in the plenum.  Wouldn't
it provide both convection and warm feet?

Using a number of small and reliable heaters, it will be several
years before the tank has to be torn down to service the heaters.

Louis Lin