Re: PV: Re: hot water heater timer

[marc@aculink.net]

You might think about an insulation blanket to go with your
timer.  The usual insulation on a water heater can use some
help.

One of my favorite ways to control things is to use a lawn
and garden cheapo sprinkler timer. It can control other
things beside sprinklers and is LOW powered.

The outputs can run the low powered coil of a relay that can
easily run motors of many horsepower and has a back up
cheapo 9 volt battery. They are capable of cycling things
several times a day and have 4, 5 or 6 outputs and are
around 15 to 15 bucks on sale. 

The relays can be had surplus for a few bucks and mount them
into a used electrical chassis with good grounding and such.
You'll be out 25 to 50 bucks and still have additional
outputs to control other things.

Marc Nameth

"John D. Shelton" wrote:
> 
> As someone who doesn't have a PV system yet (I'm in the Navy and can't
> settle in one place, but when I retire.....) I am concentrating mainly on
> conservation. I am going to buy a timer for my electric hot water heater and
> need to ask a couple of questions of anyone who might already have one
> installed. It is a typical cheap renters appliance. I don't know the
> capacity but it's about 5 feet tall. I plan to set it to turn off at ten
> p.m. and turn on in time for me to shower at about 6 a.m. What time would I
> need to set it to turn on to get hot water at six? Any other hints on
> installation? Thanks folks.
> 
> John David
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