[Greenbuilding] Opinions on electric tankless HW heaters?

[Carmine Vasile]

Nick: Please stop misleading people with your erroneous advice. We all know your prejudice against both tankless heaters & tankless drain water heat recovery systems that can deliver Energy Factors well above that offered by the kinds of water heaters you promote.
Carmine
gfxechnology.com  
 


From: npyner at tig.com.au
To: greenbuilding at lists.bioenergylists.org
Date: Tue, 19 Apr 2011 09:37:24 +1000
Subject: Re: [Greenbuilding] Opinions on electric tankless HW heaters?



Instant electric is usually the last choice on economic and environmental grounds.
 
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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