propane preheater

In article ,
dave wrote:

I'm not planning on using it to preheat the cabin. I'm wondering how
this is any different than a red dragon or the large pre-heaters that
the FBO's use.

Are you thinking about blowing the hot air into the cabin or into
the engine compartment?



Another thread made me think about using the portable propane heater I use
in my garage to preheat my airplane. It's the standard metal tube type
with the fan from Home Depot or Lowes. I've seen people simply attach a
flex duct to the end of this type heater and blow the hot air into the
cabin - poor man's red dragon. Any drawbacks?

--
Bob Noel
Looking for a sig the
lawyers will hate

Bob,
I'm really only interested in using it to heat the engine.
Dave

Bob Noel wrote:
In article ,
dave wrote:

I'm not planning on using it to preheat the cabin. I'm wondering how
this is any different than a red dragon or the large pre-heaters that
the FBO's use.

Are you thinking about blowing the hot air into the cabin or into
the engine compartment?



Another thread made me think about using the portable propane heater I use
in my garage to preheat my airplane. It's the standard metal tube type
with the fan from Home Depot or Lowes. I've seen people simply attach a
flex duct to the end of this type heater and blow the hot air into the
cabin - poor man's red dragon. Any drawbacks?