[CAUT] How many DC tanks, (was undercover Heat n Bond)

Barbara Richmond piano57 at insightbb.com
Wed Feb 28 06:52:53 MST 2007


She's only owned the piano for three years--the system was installed at her
house.

br
----- Original Message ----- 
From: "David Ilvedson" <ilvey at sbcglobal.net>
To: <caut at ptg.org>
Sent: Tuesday, February 27, 2007 11:04 PM
Subject: Re: [CAUT] How many DC tanks, (was undercover Heat n Bond)


>I am now expert either, but is it possible the system you are talking about
>was really old before DC had the baffles?   When were the baffles added by
>DC?
>
> David Ilvedson, RPT
> Pacifica, CA  94044
>
> ----- Original message ----------------------------------------
> From: "Barbara Richmond" <piano57 at insightbb.com>
> To: "College and University Technicians" <caut at ptg.org>
> Received: 2/26/2007 8:05:05 PM
> Subject: Re: [CAUT] How many DC tanks, (was undercover Heat n Bond)
>
>
>>Hi Don,
>
>>I am no expert at this.  Where would you place the tanks?  I have the
>>schematic for one tank--where it is pretty much in the middle.  There
>>looks
>>like plenty of room on the straight side and not as much room towards the
>>curved side.  Is there an ideal placement for two tanks?
>
>
>>Thanks,
>
>>Barbara Richmond, RPT
>
>>----- Original Message ----- 
>>From: "Don" <pianotuna at accesscomm.ca>
>>To: "College and University Technicians" <caut at ptg.org>
>>Sent: Monday, February 26, 2007 3:00 PM
>>Subject: Re: [CAUT] How many DC tanks, (was undercover Heat n Bond)
>
>
>>> Hi Barbara,
>>>
>>> I'd usually try one bucket with bottom cover and Edward's string
>>> cover--but
>>> the client already has the the two bucket system--so it may as well be
>>> used. A tiny bit more work--but the humidity output will be doubled--and
>>> the cycling speed will be faster--which should lead directly to smaller
>>> pitch changes.
>>>
>>> Bottom line two buckets work better than one *if* there is room to
>>> install
>>> them.
>>>
>>> The current install is obviously not working if you had a significant
>>> pitch
>>> correction needed.
>>>
>>> At 07:17 PM 2/26/2007 -0600, you wrote:
>>>>Hi Mark,
>>>>
>>>>Thanks for your responses about the Heat n Bond.  I received the
>>>>information
>>>>you sent to Roger Wheelock and am ready to charge ahead.
>>>>
>>>>I'd like your opinion (or anybody else's).  Here in Central Illinois we
>>>>go
>>>>through some pretty large humidity swings.  I serviced, for the first
>>>>time,
>>>>a Steinway B, in an majestic, though old, brick country house (high,
>>>>high
>>>>ceilings, hot water heat), where they do not normally use air
>>>>conditioning
>>>>in the summer.  This piano has a DC system, installed by a guy who
>>>>generally
>>>>makes "big deal" out of a lot of stuff.  Anyway, it's a two humidifier
>>>>system, under the beams; he attached plywood the same rectangular shape
>>>>of
>>>>the baffles to the beams.  Then the tanks hang pretty far below the
>>>>plywood,
>>>>the baffles hang between the tanks and the plywood.  Darn, why didn't I
>>>>have
>>>>my camera with me.  It looks genuinely hideous and I still had to do a
>>>>significant pitch raise, so I'm not sure how much this installation is
>>>>really helping.  Then there is an issue with the keys in the summer.  I
>>>>would like to do an in-between the beams installation with undercover,
>>>>and
>>>>an added heater bar under the keybed.  I'm also recommending an Edwards
>>>>string cover.  I think that the high humidity in the summer is the
>>>>bigger
>>>>problem.  OK, so here's the question.  If I switched to a one tank
>>>>system
>>>>and used an undercover, do you think it would do the job?  My not very
>>>>good
>>>>hygrometer said that the humidity level was at 28% when I was there last
>>>>week, so it doesn't appear to be one of those horrifically dry
>>>>environments
>>>>(for winter).   Would you automatically put a two tank system in a B or
>>>>would you only put two tanks in when dryness was extreme?
>>>>
>>>>Thanks,
>>>>
>>>>Barbara Richmond,
>>> Regards,
>>> Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
>>> Non calor sed umor est qui nobis incommodat
>>>
>>> mailto:pianotuna at yahoo.com http://us.geocities.com/drpt1948/
>>>
>>> 3004 Grant Rd. REGINA, SK, S4S 5G7
>>> 306-539-0716 or 1-888-29t-uner
>>>
>



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