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On Demand hot water heater

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On Demand hot water heater

Post by CanuckBob on Tue Aug 11, 2015 7:44 am

I just finished some new construction and installed a Bosch "on demand" hot water heater in a new bathroom. One thing I was not aware of is that these heaters require a minimum 30 PSI to activate and stay activated. I have a pressure tank system so it was not a problem to turn up my pressure to 30 - 50 however for those people with a gravity system beware that this type of hot water heater may not work for you.
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Re: On Demand hot water heater

Post by lunateak on Tue Aug 11, 2015 9:40 am

Solar hot water works very well with gravity systems!
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Re: On Demand hot water heater

Post by CanuckBob on Tue Aug 11, 2015 10:13 am

Yep, that's for sure.
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Re: On Demand hot water heater

Post by CanuckBob on Tue Aug 11, 2015 10:24 am

And just to be clear these are the type of heaters that have no small reserve tank and no pilot light. The flame is activated when it senses water pressure. I also have a different one in one of my casita's that has a pilot light so doesn't require water pressure to activate it. Of course it is also burning propane unnecessarily.
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Re: On Demand hot water heater

Post by Playaboy on Tue Aug 11, 2015 10:41 am

I had a Bosch on-demand water heaters for 10+ years.  They are great. Never run out of hot water unless you run out of propane.  Service from Bosch was excellent.

My heaters had a pilot light and still required water pressure to activate the switch. Cbob, what fires up the burners when you don't have a pilot?

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Re: On Demand hot water heater

Post by CanuckBob on Tue Aug 11, 2015 1:35 pm

It has batteries that fire up the burners. 2 D cells.
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Re: On Demand hot water heater

Post by tekno on Sat Oct 24, 2015 1:22 pm

Just a dumb question..

Why are you looking for a "...HOT water heater"?

If the water is already hot why heat it?

Maybe you mean "on demand water heater"?

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Re: On Demand hot water heater

Post by ltollefs on Sat Oct 24, 2015 2:53 pm

tekno wrote:Just a dumb question..

Why are you looking for a "...HOT water heater"?

If the water is already hot why heat it?

Maybe you mean "on demand water heater"?

Attention shoppers, we have a pedant on aisle 2. Careful as you pass.
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Re: On Demand hot water heater

Post by tekno on Sat Oct 24, 2015 2:55 pm

Well seems ridiculous to say it that way and worse to write it. I think we will refer this to the department of dual redundancy

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Re: On Demand hot water heater

Post by Lady Otter Latté on Sat Oct 24, 2015 3:14 pm

I put your post in the department located at the intersection of Who Really Cares and I Have Better Things To Do.
However, if you are desperate for something to make yourself feel smarter about and shore up what appears to be fragile self esteem, have at it. Just don't expect a lot of us to be impressed.
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Re: On Demand hot water heater

Post by tekno on Sat Oct 24, 2015 3:44 pm

haha and you insult my self esteem , claiming I have issues. Look in the mirror.

Put it where you want even up yours. You do me no damage OP sounds so NACO, as does the one claiming to be a "Lady"

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Re: On Demand hot water heater

Post by Lady Otter Latté on Sat Oct 24, 2015 3:51 pm

Brand new poster with 18 posts in one day who begins raging and insulting other members outside the Octagon on day one?
Watch that temper, Tekno. By your insults they shall know you.
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Re: On Demand hot water heater

Post by tekno on Sat Oct 24, 2015 5:28 pm

What a "Lady"

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Re: On Demand hot water heater

Post by Lady Otter Latté on Sat Oct 24, 2015 5:41 pm

Do you have any more to offer on the OP?
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Re: On Demand hot water heater

Post by viajero on Sat Oct 24, 2015 5:41 pm

tekno wrote:haha and you insult my self esteem , claiming I have issues. Look in the mirror.

Put it where you want even up yours. You do me no damage OP sounds so NACO, as does the one claiming to be a "Lady"
Tekno,what is your definition of naco?
Sounds to me that if there's a naco on this thread it's you.

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Re: On Demand hot water heater

Post by brigitte on Sat Oct 24, 2015 10:32 pm

The on demand also do not work if they are very far away from where they dispense the water..

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Re: On Demand hot water heater

Post by borderreiver on Sat Oct 24, 2015 11:06 pm

Tekno. WOW. Welcome. Check out the "octagon". I think U'll love it there. Jajaja

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Re: On Demand hot water heater

Post by Flamingo on Sat Oct 24, 2015 11:19 pm

Tekno may I suggest a big bowl of All-Bran first thing in the morning? I think you'll find you feel a lot better when you're not full of sh!t.
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Re: On Demand hot water heater

Post by slainte39 on Sun Oct 25, 2015 1:53 am

tekno wrote:Just a dumb question..

Why are you looking for a "...HOT water heater"?

If the water is already hot why heat it?

Maybe you mean "on demand water heater"?

Nothing to do with temperature, looking for a stolen water heater at a discounted price, preferably from some naco.

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Re: On Demand hot water heater

Post by borderreiver on Mon Oct 26, 2015 11:09 pm

Nice.

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Re: On Demand hot water heater

Post by slainte39 on Tue Oct 27, 2015 2:18 am

Let's change topics to "cold water coolers"....maybe that will get a response.

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Re: On Demand hot water heater

Post by Zedinmexico on Tue Oct 27, 2015 8:09 am

Believe it or not there is such a thing as a "Hot water heater" it take hot water and makes it hotter. Its an industrial piece.


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Re: On Demand hot water heater

Post by slainte39 on Tue Oct 27, 2015 10:58 am

They have hot water coolers at the balneario in SJC.

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