Ray, Chris, et al,
Both Paloma (185,500 BTU/h) and Bosch (117,000 BTU/h) manufactured
natural draft heaters that used zero electric, just like common tanks.
Because the majority of these units used a standing pilot, they were
castigated by the energy bureaucrat folks in favor of something that
Rianai have 3 major issues when used off grid.
1) The phantom load when I checked was over 30 watts continuous. That's
over 700 w-hr/ day.
2) They need pure sine wave, and even have trouble on Trace SW
inverters. (One system I took over has a separate Exeltech on its own
battery and AC
It used to be that “tankless” water heaters were very sensitive to stable
temperature production as flows from single handle facets shut down the hot and
opened the cold flows.
I can fully recommend the Rianai heaters of today as we have 2 in offgrid and 0
issues. I have family members that
HI All,
If anyone has one or knows where to get a Sharp ND-167U1F?
Please let me know off list
thanks
jay
Peltz power
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Ah,off grid. I see. That makes sense. I wouldn't use it place of solar,
but we have used it as part of one. Obviously we have a tank in that
application. We have a very good propane sales person herewho has sold a
lot of on demand radiant and hydronic.It's almost twice thecost per BTU
v oil,
Chris,
For Offgrid with minerals in the well water, getting the right flow, the
maintenance that is just not there with a tank heater. Tankless are great
for many but if you do add an open loop solar water panel, you need a
tank Just not worth it in places like the south west where there is
What are the issues with tankless water heaters? I have heard them
described as having "issues", but I haven't read anything that describes
what they are. They are very popular where I live. Any info? Thanks, Chris
On 3/20/2018 1:07 PM, Dave Angelini Offgrid Solar wrote:
And a big maybe
And a big maybe for Offgrid where we like multiple ways to
charge/heat/cool and make hot water. The default method is almost always
the most reliable. For a typical home a 50 gallon propane tank water
heater with a zinc change every 7 years is the norm.
An air to water heat pump, an open loop
Maybe. I designed my own house to incorporate this. The most efficient are
the vertical type, and at 6' the company advertised 20% recovery for about
$1,300 if I remember correctly. This I'm sure is for a new copper pipe, and
anyone who's ever taken apart a sewer pipe after a few years will know
Daniel,
That sounds like an intriguing technology, much
along the lines of an air to air heat exchanger.
Thanks for the recommendation. These systems
could keep a lot of CO2 out of the atmosphere if widely used.
Drake
At 10:09 AM 3/19/2018, you wrote:
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