Thanks

[Joel Jones]

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On 12/20/03 5:39 AM, "MKurta" <mkurta@adelphia.net> wrote:

>     Thanks to those who responded to my questions about radiant heat unde=
r a
> new grand, and the journals available.  I've forwarded your responses to =
the
> appropriate parties, they will respond to you directly if they choose.  T=
hanks
> again,=20
>     Mike Kurta
>=20
> Mike,=20
>=20
> I have serviced  pianos in churches and homes that have the heat coils
> inbstalled in the cement floor.   The benefit is the stable temperature w=
hich
> can be lower than  =8Cnormal=B9   68 degrees to be comfortable.   The home ow=
ner
> kept the temperature in the high 50=B9s .  These areas can be humidified wi=
th a
> room humidifier, but in my experiences the rooms have not been humidified=
.
>    =20
> The church has a thick piano cover with an extension that goes underneath=
 the
> piano.  Velcro is used to attach the extension to the straight side.  Thi=
s
> has been effective as there is very little change in tuning stability or =
wood
> part warpage.  This is a Yamaha C7 from the late 60=B9s.
>=20
> The home owner cut a piece of plywood  in the shape of the piano and inst=
alled
> 1x2 spacers underneath the ply.  This not only deflects the radiant heat,=
 but
> acts as a pseudo soundboard.   The German Steinway D sounds great and  th=
e
> tuning is also very stable.  Because of health problems the owner did not
> service the piano for several years and I heard from  a colleague technic=
ian
> that the pitch was still A-440 and with a few unison tuned the piano was =
ready
> for recording.=20
>=20
> That=B9s my  experience.   Extend the piano cover to enclose the piano or
> install a plywood  deflector.   Both are effective.
>=20
> Oh, in our Wisconsin climate the floor concrete can crack and buckle.
> Another client had to jackhammer the floor out because the heat lines bro=
ke
> and the heating unit stopped working.   Today I believe there are better
> materials that can be installed in the floors.   I don=B9t have any experie=
nce
> with the modern installations.
>=20
> Keep in tune and stay warm.
>=20
> Joel
--=20
Joel A. Jones  RPT
Assistant Director - TEAM '04
June 29 - July 3, Nashville, TN
http://www.ptg.org/conv.htm
jajones2@facstaff.wisc.edu





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