wrote in message
...
Matt Barrow wrote:
: Why in hell did you go for a Tanis heater instead of Reiff?

- Get heat *AT* the head... not at the other end of the jug where it has
to go
by cooling fins designed to remove it to get where it's needed.
- We already had spark-plug CHT probes.
- We found an ebay deal.

My thinking is unless you had a good reason not to, Tannis is the better
way
to go. Why do you think differently?

Based on what Aviation Consumer had to say when I was buying a system
(March, 2001 edition). They said there was no advantage to merely heating
the head and that heating the barrel did have advantages.

Aviation Consumer, March 2001, pg. 18

"[Other brand] loses us in claiming that the top of the cylinder is more
critical to heat than the rest of the cylinder."
"As for heating the top of the cylinder being better, we just don't buy
that."
"As for bands versus cylinder head plugs, our view is that [other brand]
overstates the case in saying it's best to heat the head."


Cost - about a factor of three for the Tannis, would have added a couple
thousand $$ to the total cost including installation and paperwork.

Total cost for my Reiff system, including installation was under $1000.

AIUI, Tannis does heat the cylinder with the factory CHT probe. It also
causes problem for the CHT probes that you add for an engine analyzer.

http://www.reiffpreheat.com/FAQ.htm#QA10

FWIW, this if Reiff's take, but then Tannis has there's which is not
supported by third party reviews.

Aviation Consumer, TCM and the shop that did my engine conversion all
advised going with the Reiff.

YMMV.


--
Matt
---------------------
Matthew W. Barrow
Site-Fill Homes, LLC.
Montrose, CO