[Greenbuilding] Opinions on electric tankless HW heaters?

Nick Pyner npyner at tig.com.au
Mon Apr 18 16:37:24 PDT 2011

Instant electric is usually the last choice on economic and environmental

I doubt that Rheem would make them. Another manufacturer that does is
Stiebel Eltron. They have some pretty sophisticated models but they are
expensive and probably no more efficient than their simpler ones.

Even a small instant electric will take about 13kW, so retrofitting one may
call for some expensive wiring.

Nick Pyner

Dee Why   NSW
  -----Original Message-----
  On Behalf Of Matt

  I have clients who might be ideal candidates for a tankless hw heater.
They don't have natural gas in their home. I have installed gas tankless,
but don't have any experience with electric tankless heaters. I will need to
size one for a family of two to four.

  Any opinions out there? Bosch? Rinnai? Rheem?...

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