Papercreters: Re: [papercreters] On demand water heater

Wednesday, November 10, 2010

Re: [papercreters] On demand water heater

Greetings,
I have been living with on demand hot water for 12 years. My first
unit, go water damage during Ike, so it didn't last as long as it should
have. It was a standard unit and we were not particularily happy with
it. It took whatever temperature water it got and uniformly raised it
forty degrees. That means scalding water in the summer, not convenient.

Our new one is the solar back up unit. It costs more, but it has a
thermostat. You set the temperature of water you want, then it gives
you that. It senses the temperature of the water coming in, and adds
what heat is needed, that is all.

Ours is a propane fired unit by Bosch, and it does work well.

Bright Blessings,
Garth & Kim Travis
www.TheRoseColoredForest.com
Bedias, Texas
936-395-0110

On 11/10/2010 10:51 AM, Perry Way wrote:
> Judith, I have a friend from Australia that is excited about solar
> water. She says you can make a solar water heater easily and with easy
> to obtain materials. And that it can deliver water near to the boiling
> point even in the deep winter. I must confess with so many things to
> plan and prepare, I've pushed this topic to the back-burner. It may
> have even fallen off the stove a couple of times, only to be put back on
> by my friend. ;) Considering the effort she has gone through to educate
> me, I should go back and find those emails from her, and see if I can
> put together some information to get you started on the solar path.
>
>
> As to on-demand water heaters, I'm sure there are good and bad units.
> Here where I work, the building owner installed them in the bathrooms
> but they hardly work at all. Because of that I would imagine someone
> would waste a huge amount of fuel to get a tub of water hot but maybe
> I'm wrong.
>
> There are some people on http://www.permies.com (Permaculture site, very
> very cool place, has forums and articles, videos etc.) who have built
> these cob houses using a "rocket stove". They have videos on how to
> construct one, showing how the pipes are laid out and all. They use
> this concept to put exhaust pipes inside a cob bench along the side of a
> wall that is used for sleeping on or sitting on. The heat from the
> rocket stove radiates inside the cob bench and warms that before it goes
> outside. It's very ingenious if you ask me. Anyway, I am thinking that
> the same kind of concept in a general fashion could be used to heat
> water as well, perhaps by coiling a copper pipe right up against the
> stove. Warm your buns with the exhaust and heat the water with the
> stove. Just an idea.
>
> On Wed, Nov 10, 2010 at 8:31 AM, JUDITH WILLIAMS
> <williams_judith@hotmail.com <mailto:williams_judith@hotmail.com>> wrote:
>
> Has anyone used an on demand water heater to heat a hot tub? Would
> this be wildly impractical? I would love to have an outdoor water
> feature where I could soak but am not up to figuring out solar or
> anything like that.
>
> The Making of Papercrete DVD now available on Amazon.com
> http://www.amazon.com/Making-Papercrete-Judith-Williams/dp/B0040ZNE9A/ref=sr_1_1?ie=UTF8&s=dvd&qid=1283998627&sr=8-1
> <http://www.amazon.com/Making-Papercrete-Judith-Williams/dp/B0040ZNE9A/ref=sr_1_1?ie=UTF8&s=dvd&qid=1283998627&sr=8-1>
>
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>
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>
>
>
>
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