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FWIW...
We had a pure Tanis system on the O540 in our 182RG for nearly ten
years, and it worked great. (We lived in Colorado for 30+ years, and
often flew to visit family in North Dakota for Christmas or New
Year's.) When the engine hit TBO in 1999 I had the shop install a
hybrid system, using our old Tanis sump heater with brand-new Reiff
components for the top end. It works even better. (I traded the
unused Tanis components to the guy who ran the shop, who was putting
a system on his Cessna 180.)
My theory in going with the hybrid system was as follows: Reiff's
resistive bands don't fill the CHT holes (an important consideration
if you have a multi-probe engine analyzer), and I think they do a
little better job because they heat the barrels directly rather than
heating the heads (which don't really need it) and having them heat
the barrels indirectly; but I prefer the Tanis system for heating the
sump because you get those hefty heater plugs that thread into unused
holes in the oil pan, rather than the glue-on heater pad that Reiff
uses (although I've never heard of anyone having trouble with those).
If you live in a cold climate, either system (or a hybrid like ours)
is worth every penny you spend on it. Unless you want to wait for
global warming to render them unnecessary.
:)
=====
Karl Sutterfield
N9532V, Mooney M10 Cadet s.n. 700022
kasutt @ blindhog . com (remove spaces to reply)
Box 294150
Kerrville, TX 78029
830-257-5458 home office
830-257-5468 fax
830-285-7323 cell
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