gotta like a furnace salesman scientifically avoiding the issue & dropping a salesline! especcially when the yukon may have a secondary air intake, thru the oilgun, which cools flugas
Avoiding the issue...let's go there.
Our Eagle wood/oil or wood/gas had some air(small anount the flows through the burner)to keep the smoke from gathering around the nozzles or orifaces and coating them with soot. This was a huge issue with other older model wood/oil units from other manufactures across the industry back in the late 70's and 80's.
The way the Eagles are set up with a manometer is to dial them into .03" of water column. At this speed you will have a flue gas temp that hits 400 degrees when being asked to fire up and around 300 when asked to rest.
So therefore we do not see excessive creosote due to cold flue gas emmisions.
To add inshot style burners have air adjustments on them as they need air to mix with liquid fuel for proper combustion.
With the adding of higher pressures like 100 psi the oil burner burn near as clean as gas furnaces with near zero to trace smoke for emmision as tested with bachorack testing devices.
All of this is as per Underwritter Labs...I have also had a infra red lazer to determine these same numbers in some testing we have done over this past decade.
Nice try.....anything else:deadhorse:
Getting back to the OP's post. Magic Heater's can take heats from the stack. The question is once the tubes start to coat with creosote & cleaning becomes a chore. Then they start on fire because they are too hard to clean.
Maybe a bigger stove may be some help.Something that you can dial down but still take a ton of heat from because it has more thermal mass and more heat exchange surface area built in it.
To the OP....you may have to live with what you have ...if so be real carefull and do not take it for granted that all is right in the world.If you can keep the flue and MH clean then you'll be alright I'd imagine.
All products have limitation to some extent. Knowing these limitation and operating the product as per spec to manuals is the best you'll be able to operate in a safe manner.