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Remote control of thermostats & hotwater heaters question - Page 2

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Posted by Morris Dovey on October 14, 2011, 6:53 pm
 
On 10/14/11 11:39 AM, Mho wrote:

Interesting suggestion! I did a Google search on [rinnai r94lsi "$"] and
found quite a range of prices ($000 - 1500). The YouTube video at
includes a peek at the
innards and a glimpse of an actual installation.

--
Morris Dovey
DeSoto Solar
http://www.iedu.com/Solar/

Posted by Mho on October 15, 2011, 4:42 pm
 
Much too expensive and old models. Make sure you get the newer models with
better features.

Buy a RL75i ***NOT** the LSi models, as shown and advertised. These are
their old technology

The BTU and the GPM before shutdown (0.4 GPM) goes much lower and this is
annoying if you get the older one (0.6 GPM).
I just removed an older unit (LSi style model) and replaced it with the
RL75i. My heating doesn't have to oscillate to get low BTU  heat and my
faucets water stays warm down to lower flow for washing hands and things in
the sink with the tap running.

It comes ***with** the maintenance valves (you will need them to flush the
unit every year or so)
It comes with the condensation collar built-in, for longer venting pipes.
It comes with a built in temperature controller. You don't have to buy or
wire one in.
It is lighter and smaller.
It is MUCH QUIETER and doesn't wake me up every morning, anymore. (damn gas
valves clacking and clattering)

I pick it up and drive it across the border, to Canada, myself, from Buffalo
area. He ships to Canada but it costs too much for me.
Nice guy and very good to deal with, fast, cheaper, and gives good deals on
many other tools etc.. Contact him directly, screw the ripoff eBay process.
I have his cell too if desired. His eBay units come with the venting kit of
your choice too.

http://stores.ebay.ca/ROBMAR-AGENCY

-------------

On 10/14/11 11:39 AM, Mho wrote:

Interesting suggestion! I did a Google search on [rinnai r94lsi "$"] and
found quite a range of prices ($000 - 1500). The YouTube video at
includes a peek at the
innards and a glimpse of an actual installation.

--
Morris Dovey
DeSoto Solar
http://www.iedu.com/Solar/  


Posted by Mho on October 15, 2011, 4:44 pm
 One other item.

These units (all Rinnai) are supplied with anti-freeze-up heaters in them
for cottage usage if the place goes below freezing.

---------------------------

Much too expensive and old models. Make sure you get the newer models with
better features.

Buy a RL75i ***NOT** the LSi models, as shown and advertised. These are
their old technology

The BTU and the GPM before shutdown (0.4 GPM) goes much lower and this is
annoying if you get the older one (0.6 GPM).
I just removed an older unit (LSi style model) and replaced it with the
RL75i. My heating doesn't have to oscillate to get low BTU  heat and my
faucets water stays warm down to lower flow for washing hands and things in
the sink with the tap running.

It comes ***with** the maintenance valves (you will need them to flush the
unit every year or so)
It comes with the condensation collar built-in, for longer venting pipes.
It comes with a built in temperature controller. You don't have to buy or
wire one in.
It is lighter and smaller.
It is MUCH QUIETER and doesn't wake me up every morning, anymore. (damn gas
valves clacking and clattering)

I pick it up and drive it across the border, to Canada, myself, from Buffalo
area. He ships to Canada but it costs too much for me.
Nice guy and very good to deal with, fast, cheaper, and gives good deals on
many other tools etc.. Contact him directly, screw the ripoff eBay process.
I have his cell too if desired. His eBay units come with the venting kit of
your choice too.

http://stores.ebay.ca/ROBMAR-AGENCY

-------------

On 10/14/11 11:39 AM, Mho wrote:

Interesting suggestion! I did a Google search on [rinnai r94lsi "$"] and
found quite a range of prices ($000 - 1500). The YouTube video at
includes a peek at the
innards and a glimpse of an actual installation.

--
Morris Dovey
DeSoto Solar
http://www.iedu.com/Solar/


Posted by bob haller on October 21, 2011, 11:56 pm
 
OP may need 2 heaters in series to getn the cold winter water hot
enough for a good shower.

theres lots of tankless discussions here mostly talking about their
problems

Posted by Mho on October 22, 2011, 4:38 pm
 Tankless water heaters do have some quirks that are easily worked with or
worked around. The only real problem I have experienced or know of from
people that don't talk nonsense is the minimum BTU output capabilities of
the gas burners attemting to use very low water trickles from the faucettes
or into home hydronic systems at the low usage end.


Most of the gas units  are 180,000/h - 235,000 BTU/h There are no two water
heaters in series needed.

It's pretty easy to calculate in Imperial measure.

1 BTU to raise 1 pound of water 1 degree F.

185,000BTU/h  heating  water 64 deg. F (30F input to 104F shower) = 2890 gal
per hour

or 2890 / 60 = 48 gpm.

You should be able to take about 48/3.0 gpm = 16 showers, at one time.

Now those are Input ratings on the BTU and the actual efficiency is about
83% on the (noncondensing) cheaper units.

Your gallon may vary depending on geographic location and your ice may not
go through the heater when frozen (ooops)

----------------
"bob haller"  wrote in message
OP may need 2 heaters in series to getn the cold winter water hot
enough for a good shower.

theres lots of tankless discussions here mostly talking about their
problems


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