On Fri, 2011-05-06 at 10:48 -0400, Olin Lathrop wrote:
> William Couture wrote:
> > My wife has decided that we should get a tankless hot water heater to
> > save energy.
>=20
> I'm not sure they save energy.  I can see some reasons they might take mo=
re,
> but other reasons they might take less.  The main selling point as I
> understand it is that hot water is always available.  You never run out.

The main theory on "save energy" is that fact that you don't have a tank
of hot water that has to be kept hot all the time.

Considering the efficiencies of modern hot water tanks the difference is
quite small for more, zero for some.

TTYL

--=20
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