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Andrew Gabriel

In article ,
(Andrew Gabriel) writes:

It should be more like this...

T0. - ambient indoor temperature
T1. - surface temp of inside inner wall (plaster)
T2. - surface temp of outside inner wall (thermal block)
T3. - surface temp of inner outer wall (brick)
T4. - surface temp on outer outer wall (brick)
T5. - ambient outdoor temperature

Assuming T0 and T5 remain the same...
There will be an increase in T2 and a decrease in T3 as you say.
However, there will also be a (smaller) increase in T1 and decrease
in T4, because less energy is being drawn though the wall.

Measuring the difference between T0 and T1 (or T0 and T2, or T1 and
T2, as none of these thermal elements change) will give you a figure
which is proportional to the temperature loss through the wall.
^^^^^^^^^^^
Sorry, should say _energy_ loss.

--
Andrew Gabriel
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