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#949441 --- 01/03/09 08:24 PM Tankless/instantaneous hot water heater
threesons Offline
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Registered: 02/28/05
Posts: 4233
Loc: Hysteria Lane
This is difficult for me to understand. If I have hard well water, is it feasable to get one of these?? I'm reading up on these as opposed to a tank. But none addresses hard water issues.
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#949443 --- 01/03/09 08:27 PM Re: Tankless/instantaneous hot water heater [Re: threesons]
Jelloshot Offline
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Registered: 11/22/02
Posts: 11043
Loc: Right behind you.
Ask the guys at HEP they sell one there that seemed to be a good seller.

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#949444 --- 01/03/09 08:28 PM Re: Tankless/instantaneous hot water heater [Re: threesons]
Z Genius Lusifer Offline
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Registered: 11/16/01
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you will need to filter the water before the heater otherwise you will be throwing away a mineral infested $1000. bucks every 7 years......no savings for you!
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#949496 --- 01/03/09 09:29 PM Re: Tankless/instantaneous hot water heater [Re: Z Genius Lusifer]
threesons Offline
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Registered: 02/28/05
Posts: 4233
Loc: Hysteria Lane
This is all so confusing.
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#949663 --- 01/04/09 07:29 AM Re: Tankless/instantaneous hot water heater [Re: threesons]
HeavenlyPlaces Offline
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Registered: 02/26/02
Posts: 21988
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You should be able to get a filter of some sort attached to the back end so that the water that flows through the instant heater doesn't clog up the works. Living in Germany, that was pretty much all that was out there...some had a small tank that you had to wait to fill up with heated water and others were the tankless type. After trying to get all my dishes done with the first type...I can highly recommend the tankless, instant hot water, variety!
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#949709 --- 01/04/09 08:55 AM Re: Tankless/instantaneous hot water heater [Re: threesons]
happimomof2 Offline
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Registered: 09/16/08
Posts: 299
Loc: Waterloo, NY
Yes you will need to filter the water before it gets to the tank. We have one of these, tho we live in the village so no filter is needed, and it is great. It takes up less space, more energy efficiant and you don't need to wait for the water to heat up or rather it doesn't take as long for the water to heat up. Plus there's no pilot light that's always on. Oh and when you file your taxes, you'll get an extra $300 credit too (I think that's how much we got for it) but only a one time credit. When you install one, make sure there's adequate room for the exhaust vent. When it snows alot, you'll have to make sure there's no snow infront of it or you won't get any hot water. Know this too well, especially after it storms all night, and you get up to take a shower in the morning and there's no hot water. Hope this info helps. It's a great investment! Only thing is if you do have hard water, you will need a filter. Good luck!

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#949730 --- 01/04/09 09:40 AM Re: Tankless/instantaneous hot water heater [Re: happimomof2]
Z Genius Lusifer Offline
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Registered: 11/16/01
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The 10% percent enery tax credit is gone for this year.

I was pissed to find out because I did do some stuff this year.
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#949960 --- 01/04/09 04:41 PM Re: Tankless/instantaneous hot water heater [Re: happimomof2]
Plainjim Offline
Senior Member

Registered: 05/16/05
Posts: 584
Loc: Finger Lakes
We are on well water too.

I'm not familiar with home water treatment systems. Is the filter you are talking about different than a water softener? I heard that even in town a home may require a water softener to run a tankless hot water system.
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#949966 --- 01/04/09 04:53 PM Re: Tankless/instantaneous hot water heater [Re: Plainjim]
VM Smith Offline
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Registered: 11/28/05
Posts: 38160
Loc: Ship of Fools
Mine said there was some sort of optional treatment device I should buy if my water was hard. Since the heater only cost $153, and because I'm on SF water, I decided to pass on that. I pulled and checked the element after about 1.5 years, and it looked like new.
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#950072 --- 01/04/09 07:19 PM Re: Tankless/instantaneous hot water heater [Re: VM Smith]
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Registered: 01/09/06
Posts: 17154
This from the Bosch FAQ

Q. What if I have very hard water?
A. Since tankless water heaters do not store hot water, minerals have less of an opportunity to settle out of the water column and build up inside the heat exchanger. Additionally, the flow of hot water through the coiled heat exchanger flushes the product each time hot water is used. The use of a water softener is fine with a tankless water heater, and is recommended if you commonly experience hard water problems in your home.



http://www.boschhotwater.com/HelpfulResources/FAQs/tabid/337/Default.aspx

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#950078 --- 01/04/09 07:26 PM Re: Tankless/instantaneous hot water heater [Re: ]
HeavenlyPlaces Offline
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Registered: 02/26/02
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Loc: Someplace Else
Great link, Festus, thanks.
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#950079 --- 01/04/09 07:31 PM Re: Tankless/instantaneous hot water heater [Re: HeavenlyPlaces]
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Registered: 01/09/06
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YW

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#950082 --- 01/04/09 07:34 PM Re: Tankless/instantaneous hot water heater [Re: HeavenlyPlaces]
threesons Offline
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Registered: 02/28/05
Posts: 4233
Loc: Hysteria Lane
Originally Posted By: HeavenlyPlaces
Great link, Festus, thanks.


Yes it is. thank you from me too.
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#950085 --- 01/04/09 07:36 PM Re: Tankless/instantaneous hot water heater [Re: threesons]
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Registered: 01/09/06
Posts: 17154
YW too!

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#950086 --- 01/04/09 07:38 PM Re: Tankless/instantaneous hot water heater [Re: threesons]
Z Genius Lusifer Offline
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Registered: 11/16/01
Posts: 27999
Loc: inside your head & under your ...
remember though that that water IS sitting in pipes and faucets without a filter and will take its toll and be more expensive in the long run than filtering up front at the entrace.
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#950089 --- 01/04/09 07:41 PM Re: Tankless/instantaneous hot water heater [Re: Z Genius Lusifer]
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Registered: 01/09/06
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I'd filter before the softener no matter what I used for a water heater.

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#950091 --- 01/04/09 07:43 PM Re: Tankless/instantaneous hot water heater [Re: ]
threesons Offline
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Registered: 02/28/05
Posts: 4233
Loc: Hysteria Lane
okay what's filter vs. softener?? And what about this 'venting' that HP mentioned??
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#950102 --- 01/04/09 07:56 PM Re: Tankless/instantaneous hot water heater [Re: threesons]
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Registered: 01/09/06
Posts: 17154
Originally Posted By: threesons
okay what's filter vs. softener?? And what about this 'venting' that HP mentioned??


This should answer your question.

Bosch Installation Manual

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#950111 --- 01/04/09 08:06 PM Re: Tankless/instantaneous hot water heater [Re: ]
threesons Offline
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Registered: 02/28/05
Posts: 4233
Loc: Hysteria Lane
K, got one for electric????
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#950112 --- 01/04/09 08:11 PM Re: Tankless/instantaneous hot water heater [Re: threesons]
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Electric doesn't need to be vented.

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