In floor radiant heating

[David Ilvedson]

The choir loft was heated from what ever came up from the floor...30 feet below...much more gradual.  I would imagine if the piano was sitting on the Sanctuary floor over a heat vent it would have had the same problems...as it is, it is sitting on the floor over a heated floor.   

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: jimialeggio5 at comcast.net
To: pianotech at ptg.org
Received: 2/3/2007 3:15:09 PM
Subject: In floor radiant heating


>Its interesting that flooring manufactures also used to warranties on flooring over 
>radiant heating, but many of them, seeing the evidence, no longer do this. 

>But, I'm afraid anecdotal evidence dies hard.  The floors placed over this heating 
>don't suffer, unless as in any space the RH is out to lunch.  In fact, as I can attest 
>from the very reactive walnut and wide pine , and not so reactive laminated bamboo 
>that we have installed throughout our house, the floors themselves, that is the 
>wood actually in immediate proximity to the heating tubes, never go below 8% 
>throughout the entire New England winter.  

>The question really is, as usual, what is the RH of the building?  Or said another way 
>how leaky (drafty) or alternatively how tight is the building?  If the building's RH is 
>too low, any heat will blow the furniture apart. 

>Since the damp-chaser element is a radiant heat source.... according to the 
>negative comments about what the radiant heat is doing, the damp-chaser should 
>also be ruining pianos.  In fact, the Damp-chaser would ruin pianos in the winter if 
>the RH was not mitigated by the water bath.

>The post regarding moving the church piano from the choir loft was really about 
>moving it from a marginally heated to a heated area...not about the type of heat 
>used

>Jim I