[Homeroast] Electrical question on coffee brewers

Rich rich-mail at octoxol.com
Tue Oct 5 13:43:11 CDT 2010


E=IR  E is the independent variable
P=EIcos(PF)  PF=Power Factor angle.  Assume that the angle is ) and the 
cos=1

Your problem is the 116v....

Look on the brewer label and check what the rated voltage is.  That is 
the voltage REQUIRED to consume 1400 watts of power.

Dennis Guyer wrote:
> I hope I can explain my situation properly.  I have a drip coffee brewer that is advertised and being able to heat the water to 195° - 205°.  It is also listed as using 1400 watts.  Using my Kill a Watt meter, it reads somewhere between 1200 and 1250 watts draw.  My line voltage is usually 118v to 120v dropping it around 116v during the brewing process.  The water using a K-Probe is reading 185° for most of the cycle ending at a high of 193°.  My question is - is the brewer defective?  Is the line voltage determining the low readings?  Do I take the brewer back and demand my money back or is this to be expected?
> 
>  
> 
> Dennis
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