Takagi water heater [RE-wrenches]

[Jay Peltz, Peltz Power]

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Hi Bill,

I don't service or install heaters, my days as a plumber are long  
over although I have helped install takagi's for friends and boy are  
they nice!

However it does make some sense.   When you figure the cost per  
square foot of a house and the additional cost of venting, mounting  
it outside can make some really good economic sense. You can mount  
them very close to where heat is needed etc.

Like all things, there are lots of good locations ( warmer areas) to  
mount them and plenty that don't make sense.

But in regards to the scaling issue.  I would think ( I don't live in  
an area with bad problems) that if you do have such a problem then  
you would have softeners etc regardless of if you have a  on demand  
or regular unit.

Thanks,

jay

peltz power

PS Where  or who makes a good descaling equipment or solutions?



> ------------------------------------------------------------------
>
>
> Jay,
>
> The entire philosophy of mounting a water heater outside in a freezing
> climate should be relegated to the odds makers in Vegas.
> Would you want to bet the near $1,000 equipment cost that there  
> will be no
> power outage during freezing weather? Do you want to service that  
> heater in
> the freezing temperatures after there is a power failure? Did you  
> provide
> for heating of the connecting plumbing as well as the heater itself?
> Thanks, but no thanks for this belt and suspenders person.
>
> If the tankless manufacturers were tuned in to what really gives them
> problems it would be scaling of the half inch tube that serves as  
> the heat
> exchanger in nearly all tankless units. In a hard water area (like St.
> Louis, MO) I have seen significant scale deposits as early as two  
> years
> after installation (city water). On well water (obviously with  
> significant
> hardness) a descaling operation may need to be performed monthly,  
> if the
> user allows the default temperature (higher than necessary for  
> bathing) to
> control the hot water production. WebstoneValves.com has a  
> speciality combo
> valve (EXP) that incorporates shutoff and isolation valves that allow
> relatively easy descaling. Nothing you can't sweat together  
> yourself, just
> a compact and attractive unit.
>
> According to the water softener people there is another general
> classification of hardness - "very hard". I'll bet that well water I
> mentioned above would qualify for the very hard defination.
>
> The solution for the well water person was a water softener. The  
> tankless
> worked well after that addition. An alternative to the salt or  
> potasium
> enriched water produced by a water softener that some people  
> describe as
> silky and others describe as slimy could be a water conditioner. I  
> don't
> want to reopen the devisive discussion as to the effectiveness of  
> water
> conditioners (of which there are a multitude, some of which are  
> marketed by
> ex snake oil salespeople, IMHO) other than to say if works for me  
> here in
> STL and provides the health conscious user with an alternative to  
> perhaps
> monthly descaling. The well water user was alreading using a steam
> distiller for their drinking water, so the water softener was  
> basically
> preventive maintenance for their entire plumbing system.
>
> Good luck with your tankless (and solar) installations.
>
> Bill Loesch, Solar1 - Saint Louis Solar, tel/fax 314 631 1094
>
>
> Message text written by INTERNET:RE-wrenches at topica.com
>

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