[pianotech] Protection from underfloor heating

[Ron Nossaman]

On 12/11/2012 7:17 AM, Encore Pianos wrote:
> Has anyone here ever measured the ambient air temperature directly above a
> radiant floor? (say 2 inches as a starting point)  I am very curious as to
> what that temperature would measure there, and at intervals above that (say
> every foot or so).

A data logger with four or five sensors would be interesting, as well as 
an indication of when the heat cycle begins and ends to see the lag time 
inherent in the system. Setting a heat anticipator on these systems must 
be interesting.

Our house was built in 1950 by an architect just out of school. Cinder 
block on slab floor ranch, with a poured concrete roof. This is where he 
learned what not to do. There is a small fortune in 1/2" copper pipe in 
the floor that was originally heated with a boiler in the utility room 
and regulated by nests of valves in two cabinets in different parts of 
the house, the bedrooms separate from the living areas. It wasn't long 
after they got really sick of continually diddling valves that the 
concrete ate the copper enough for the leak to inherit the earth, and 
forced air was retrofitted. This summer, we installed what I think is 
the forth forced air system.

Ron N