The only time two water heaters should be piped in parallel, is when they
have the same capacity and flow rate.

"Joseph Meehan" wrote in message
. ..
wrote:
in series that wouldnt work although he could do it by adding some
valves.

????

In a series it should work as I explained it. Why not?


although I would leave the tank full of non moving water for a
extended time.

Not in a series. In a series water has to flow through both tanks.
In
parallel it can flow through just one.


the best thing he can do is monitor his electric bill if it spikes
then try something else

--
Joseph Meehan

Dia duit