Different question about heater bars

[Farrell]

Hi Don. I have never installed a back cover. From a theoretical scientific
standpoint they make complete sense. I'm glad to hear they seem to be of
great benefit. One thing I have always wondered: Any significant effect on
sound output? And can you describe the material you are using on the back -
type of material, thickness, attachment method, any holes, are you
installing system components (heat rod, water thingee) on the backside
also - or just putting the cover on. Thanks for any info.

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com

----- Original Message -----
From: "Don" <drose@dlcwest.com>
To: <pianotech@ptg.org>
Sent: Thursday, October 19, 2000 12:44 AM
Subject: Re: Different question about heater bars


> Hi Richard et al,
>
> I highly recommend back covers on uprights. Again tonight I had a piano
> that no note had moved more than 2 cents on any note. The last tuning was
> in January, 2000.
>
> I feel that this allows both sides of the sound board and the wooden frame
> to become steady state sooner. With every piano I have added on a back
> cover, the level of pitch stability has improved.
>
>
>
> Regards,
> Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.
>
> Tuner for the Saskatchewan Centre of the Arts
>
> drose@dlcwest.com
> http://donrose.htmlplanet.com/
>
> 3004 Grant Rd.
> REGINA, SK
> S4S 5G7
> 306-352-3620 or 1-888-29t-uner
>