I have a Tanis heater and a JPI EDM-700 on my 182Q.

The JPI CHT probes are bayonet style except for cylinder 3. Cylinder 3 has a
JPI washer-type thermocouple under the top spark plug. Consequently, it
reads lower than the others. The bayonet socket for cylinder 3 is occupied
by the original Cessna CHT probe. JPI makes a dual bayonet adapter which I
intend to install sometime.

The Tanis has a pad heater on the top of the block and on the bottom of the
oil pan. Each cylinder has a Tanis heater/gasket under the rocker arm cover.
The system works very well.

Jon

"O. Sami Saydjari" wrote in message
...
Does anyone out there have experience with having installed a tanis
heater when a engine analyzer is already in place. I have a JPI Classic
Scanner (EGT/CHT) that had bayonnet-type probee for CHT. Tanis has a
kit designed for this sitation, but after we installed the kit, none of
the CHT readings worked at all. The installer called Tanis and JPI and
did get very useful advice on what may be going wrong. Has anyone out
there faced this problem (and successfully overcome it)?

-Sami
Piper Arrow III N2057M