Tankless Water Heater without pilot [RE-wrenches]

Ray Walters ray at solarray.com
Wed Oct 27 16:17:35 PDT 2004


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Maybe the Rinnai I measured wasn't up to temperature. I just had it on for 
about 10 minutes, and it was in an unheated room in the house with an 
outside door. The measurement of 100 watts was made with a Brand meter. 
Phantom loads of any sort usually scare me off, and if on continuously 
would be 2400 watt hrs/ day which is devastating. I wonder what the duty 
cycle in the winter would be and whether the thermostat was adjustable?

Ray



>I just measured my Rinnai water heater's electrical consumption at 4
>watts standby, 30 watts running. They do have an internal heater to
>prevent freezing that probably draws 75 watts or so,
>
>Brad
>
>
>
>Solar Ray wrote:
> >
> > Hi Scott;
> >
> > We've seen this scaling problem here with Aquastars. I quit selling them
> >
> > for the most part, because of the scaling problem and the fact that they
> >
> > don't fire at low flow rates. Nothing like selling a good customer a
> > Staber
> > washer and an Aquastar and then the Staber doesn't use enough water to
> > get
> > the Aquastar to fire! Or the frugal old lady on a rain catch cistern
> > that
> > washes dishes with a quart/ minute and it won't fire either.
> > I recently had a customer with a "Rannai" hotwater heater. It had an
> > almost
> > 100 watt draw while in standby!  It must have had a glowbar or something
> > in
> > there. It also was not mod sine friendly. It was replaced with an
> > Aquastar,
> > since there wasn't space for a regular hotwater heater.
> >
> > Ray
> >
> >
>
>
>Brad Bassett
>AEE
>
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Ray Walters
ray at solarray.com
President, SolarRay, Inc.
NABCEP Certified Solar PV Installer
BS Mechanical Engineering, UT Austin 88
Returned US Peace Corps Volunteer 

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