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Angelos
Junior Nomad
Posts: 47
Registered: 12-3-2010
Location: La Paz, BCS, Mexico/Anacortes, WA
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Too much pressure for a Bosche OD water heater
We just purchased and installed a Bosche OD water heater for our home. Space is limited and we thought this would work well. The heater automatically
shut off after about a minute of running water.
Our plumber called Bosche who told him our water pressure was too high. Yet the technical specs indicate we are within range.
We were told to return it to Home Depot (where we bought it) and get another one - but the technician there told us to buy the exact same one.
Conclusion was that the first one was faulty and we surely misunderstood the water pressure issue.
Got a second one installed by the Home Depot technician and the same problem again. He called Bosche and talked to a different technician who told him
we have TOO MUCH water pressure even though the technical specs say we are within range.
We are trying to decide if installing a tankless OD system is worth it and if we should just go back to a tank - although we don't have a lot of room
so it will be a small tank.
Anyone out there install a Bosche OD system and how did it work? If it did work, what is your pressure (psi) - thanks!
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rts551
Elite Nomad
Posts: 6700
Registered: 9-5-2003
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It didn't work. pressure too low.
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Bob and Susan
Elite Nomad
Posts: 8813
Registered: 8-20-2003
Location: Mulege BCS on the BAY
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Mood: Full Time Residents
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i had 7 of them...a BIG mistake
i have 2 now and they are ONLY used for point of use as they turn off using a pressure pump
i currently use 12 gallon small propane units
they heat really fast and use very little gas
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rts551
Elite Nomad
Posts: 6700
Registered: 9-5-2003
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Bob and Susan. We do the same (15 gallon) and it works great.
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astrobaja
Senior Nomad
Posts: 952
Registered: 5-22-2006
Location: near San Pedro Martir Park
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Mood: beam me up
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We had a buddy back in Ontario that used a Bosch OD for a hydronic floor heating system and he had nothing but problems with it!
Initially for our house here we had some weird Chinese brand that was bought here in Baja and that was a pain in the butt too, so then we got a
Takagi OD heater on the recommendation of the company that made our hydronic heat system. They said it was one of the best. In the end you get what
you pay for!
http://www.takagi.com/
\"There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear
and be replaced by something even more bizarre and inexplicable.There is another theory which states that this has already happened\"
Douglas Adams
our website: http://bajadarkskies.com |
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Tacodawgtim
Junior Nomad
Posts: 90
Registered: 9-15-2012
Location: San Felipe. Full time
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Mood: No Bad Days
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I use a Bosch OD water heater in my solar home in San Felipe. It has worked great for five years. My presure is probably about 25 pounds. Not real
high presure but it works great.
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monoloco
Elite Nomad
Posts: 6667
Registered: 7-13-2009
Location: Pescadero BCS
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I have two of them in my house and they have been working flawlessly for 3 years. I'm using a variable speed pump that provides consistent pressure
without a pressure tank. If you indeed have too much pressure, try a pressure reducer. Bosch does make high and low pressure models of the smallest
heaters they sell down here. If you are using a pump with a bladder tank the problem may be the differential between the high and low cutoff
pressures.
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rts551
Elite Nomad
Posts: 6700
Registered: 9-5-2003
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we also had problems with the ignitor getting dirty and not working. and problems there either?
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Hook
Elite Nomad
Posts: 9011
Registered: 3-13-2004
Location: Sonora
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Mood: Inquisitive
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We've had one for about two years on our palapa deck. Our pressure tank keeps our pressure at 35-40 psi. No problems with the Bosch.
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J.P.
Super Nomad
Posts: 1673
Registered: 7-8-2010
Location: Punta Banda
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Mood: Easy Does It
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I had a Bosh with a hydro generator it worked about 4 years pressure was trickey it had to be in range. It died and I went to Home Depot and they had
a new style that is designed to run off gravity feed I installed it and it works great Its way cheaper than the original GE Heater with the water we
have here nothing last as long as it should.
[Edited on 1-8-2013 by J.P.]
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shari
Select Nomad
Posts: 13048
Registered: 3-10-2006
Location: bahia asuncion, baja sur
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Mood: there is no reality except the one contained within us "Herman Hesse"
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I have a suggestion for water heaters. Buy local...because when something happens, you can either replace it or fix it. We only use electric 110 volt
Rheum tanks because they are available everywhere here, you can get the replacement heating element easily locally, no worries about the pilot light
burning out and they are economical too. We use a smaller tank and install a switch to turn it on and off and it heats up in 15 minutes...quick and
easy.
I often see expats bringing in stuff from the states that is a nightmare as it is often incompatible with plumbing here and impossible to fix or get
parts for.
So..buy local and have less problems...likely to be cheaper too.
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rts551
Elite Nomad
Posts: 6700
Registered: 9-5-2003
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I live off-grid...as many others do leaving propane as the best option.
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baja09
Newbie
Posts: 24
Registered: 11-24-2011
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Bosch OD
We have had good luck ....you need full flow without that it does not work ...must have good flow, restricted screens in faucets will stop it
from working...
A+P......... PILOT........Baja Sur Lover
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capitolkat
Senior Nomad
Posts: 510
Registered: 3-9-2006
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Had three-- none worked
I had three installed in our new house as we have three zones for hot water. None worked, we had the Bosch tech out three times, too much pressure,
not enough pressure, pressure OK, but hot water came on and then shut off if you dared to touch the control in the shower.Nothing worse than a nice
hot shower that ends while you are still rinsing off.
My contractor talked to the manager at HOme Depot where we bought them and he said many come back and they are all from gringos as Mexicans take the
failure in stride. I really wanted to be green with the product but I now have regular propane heaters and I'm not looking back as I tried for 6
months to make the Bosch heaters work.
I even went so far as to talk to a US supplier about the problems and gave him the serial nos. and models. They were all built in Mexico and he had
never seen anything like them in the states.
Life is too short to drink bad wine
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CortezBlue
Super Nomad
Posts: 2213
Registered: 11-14-2006
Location: Fenix/San Phelipe
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I have a similar story but with a Rinnai od unit
we are in SF and at the bottom of our development on the beach. With the gravity, we have very high water pressure
Our tankless worked fine for a few years and out of the blue it died. We have a remote wired control panel in the house and it would beep and gave a
code that said the gas was not getting to the system. I monkeyed around with it could never get it to work.
I brought down a small electric water heater I had at the house that I had replaced with a Hybrid heat pumped based water heater. But after running
it for a month in the Dec/Jan time frame, I couldn't imagine continuing to pay the huge electric bill.
So I called the manufacturer of the tankless and they are not supported in Mexico. They suggested I bring back to the states, which I did. Got it
home called them back and they gave me a list of service companies, however, the problem was, they needed it connected to the water and gas line.
That wasn't going to work, but luckily I mentioned this to one of the ladies on the phone and she referred me to a local guy that had a setup for
repairing units for the Army at his shop.
This guy was really nice and he wanted $150 to hook it up, fix it and clean it. Since I found this brand new for $250 at an estate sale, why not.
He hooked it up and it worked like a champ. I couldn't believe it.
Took it back to Mexico, had my propane take emptied, which it was almost empty any way, and refilled the tank.
Worked like a champ and has for the past 3 or 4 years with no problems.
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merlin
Junior Nomad
Posts: 87
Registered: 2-22-2007
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I use these at my home and they work great. It took some trial and error to get them dialed in but once I did I've had about four years of trouble
free service. The number one problem you will find is that almost all faucets and shower heads have water-saving heads that are not compatible with
the OD water heaters. I found that when I installed high-end open flow shower heads I had less problems. On one shower head I even went so far as to
drill out the port for less water restriction and it now works the best our of all of them.
As mentioned above - you need to clean all the water screens as well - any flow restriction and the hot water will turn off after a couple of minutes
of use.
Good luck.
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monoloco
Elite Nomad
Posts: 6667
Registered: 7-13-2009
Location: Pescadero BCS
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| Quote: | Originally posted by shari
I have a suggestion for water heaters. Buy local...because when something happens, you can either replace it or fix it. We only use electric 110 volt
Rheum tanks because they are available everywhere here, you can get the replacement heating element easily locally, no worries about the pilot light
burning out and they are economical too. We use a smaller tank and install a switch to turn it on and off and it heats up in 15 minutes...quick and
easy.
I often see expats bringing in stuff from the states that is a nightmare as it is often incompatible with plumbing here and impossible to fix or get
parts for.
So..buy local and have less problems...likely to be cheaper too. |
Good advice, down here Bosch on demand
heaters are sold at Costco and Home Depot.
[Edited on 1-8-2013 by monoloco]
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El Jefe
Super Nomad
Posts: 1027
Registered: 10-27-2003
Location: South East Cape
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Looks like the Bosch heaters have about a 50% chance of working for you. Ours didn't work either with our bladder tank system. I bought two 20 gallon
gas heaters to replace the tankless and they have worked just fine thank you.
Better to keep it simple when you can.
No b-tchin\' in the Baja.
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mrfatboy
Nomad
Posts: 478
Registered: 4-17-2008
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Our San Diego home uses a nortiz tankless for 8 years now. Awesome. 5 friends have put them in based on our experience. Everybody loves them. Bosch is
garbage.
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Edguero
Nomad
Posts: 112
Registered: 6-13-2006
Location: O\'side/Punta Final
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I bought a used Marey off Ebay a few years back to see if that was the direction I wanted to go, the entire house (2 showers, 2 lavatory sinks,
kitchen sink and outdoor shower) is pressurized with a 12v Shurflo and works pretty dang good.
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