[Greenbuilding] [BULK] Tankless HW and hard water

[Lawrence Lile]

 I have hard water and a tankless and I've never given it a care.
Anyone have long years experience with one of these?

In my area, tank water heaters rarely last ten years. 

--Lawrence




-----Original Message-----
From: greenbuilding-bounces at listserv.repp.org
[mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Aaron
Lamperti
Sent: Wednesday, September 06, 2006 9:29 AM
To: greenbuilding at listserv.repp.org
Subject: [BULK] [Greenbuilding] Tankless HW and hard water
Importance: Low

Hi All,

I apologize in advance if this question has received lots of time on the
list in the past.  I tried to scan the archives and didn't find
anything.

Does anyone have experience/opinion regarding use of tankless hot water
heaters with hard water.  A quick scan of internet opinions turned up a
range of concerns (doesn't it always!).

1.  Shouldn't use tankless because lime will block heat exchanger and
reduce efficiency 2.  Lime won't form since there isn't a point heat
source to boil water 3.  Back flush every (insert time range here) with
vinegar to remove lime 4.  various filter/softener arrangements

Thoughts?

Thanks!

Aaron Lamperti
Norwich, VT

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