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Remote control of thermostats & hotwater heaters question

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Posted by ghelf on October 9, 2011, 4:57 am
 
I've seen several web enabled thermostats that I am reviewing but was
wondering if anybody knows if there might be a gas hotwater heater that can
be controlled in the same manner. The house is a vacation home I rent out in
the summer and winter. In the weeks/months when the house is not occuppied
I'd like to set to maintain a minimum temperature. In the winter time I'd
like to keep maximum temperature so maximum number of people can take
showers before the hotwater runs out.
Ideally a tankless hotwater system would do the trick but at $000 it is too
expensive.
Any ideas?



Posted by Winston on October 9, 2011, 5:36 am
 
ghelf wrote:

http://www.hobbyengineering.com/H4304.html

Connect this to a servo that controls the
knob on your water heater and control it
from anywhere in the world.

   * Use a battery backup for your ethernet connection.
   * Put hard physical limits on knob travel first!
   * This is an engineering project, not a
     'turnkey' answer.

--Winston

Posted by vaughn on October 9, 2011, 8:03 pm
 

Check this site: http://gaswaterheatertimer.com/index.php?page=purchase

That is basically a hot water heater timer made for gas hot water heaters.  It
seems to work by simply turning the knob on your existing control.  Once you
have the controller in your hand, it will be up to you to remote control it, but
that apparently isn't all that hard.  From the site: "IS THE 'SMARTDEVICE' GAS
WATER HEATER TIMER COMPATIBLE WITH "HOME AUTOMATION" ELECTRONIC DEVICES?
YES. It will accept any "Home Automation" electronic timing device. After you
have received it, simply unplug the mechanical timing device we have
furnished... and plug in your own device-it is as simple as that! It's use will
not affect the warranty."

Google "Gas water heater timer" Or perhaps something like "Gas water heater
remote control" for more ideas.

Vaughn




Posted by bob haller on October 14, 2011, 11:12 am
 
why maintain a minimum temp when the home is vacant?

you need normal temp or burner off control.

a tank of just warm water is a perfect breeding ground for things that
can make you residents ill.

keep the building warm but the water heater off except when the home
is occupied

Posted by Mho on October 14, 2011, 4:39 pm
 $K??? Where di you get that idea? Try a Rinnai unit. Available for a
dealer, online in Buffalo area for under $K with vent kit and the
maintenance valves. I can supply his contact info. I have dealt with him a
few times and he is excellent and if in Canada he has ways.


Do you have a phone line to this property, off season? With a few dollars
and two parts you can have a dial-up temp monitor for the place.

-----------
"ghelf"  wrote in message

I've seen several web enabled thermostats that I am reviewing but was
wondering if anybody knows if there might be a gas hotwater heater that can
be controlled in the same manner. The house is a vacation home I rent out in
the summer and winter. In the weeks/months when the house is not occuppied
I'd like to set to maintain a minimum temperature. In the winter time I'd
like to keep maximum temperature so maximum number of people can take
showers before the hotwater runs out.
Ideally a tankless hotwater system would do the trick but at $000 it is too
expensive.
Any ideas?



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