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Rotax 503 muffler heat muff

6 posts in this topic

Posted

Aircraft spruce sells a heat muff that goes around the 503 muffler. Has anyone installed this to heat the cabin?

 

Thanks

Vance

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Posted

I have one of these that came with the Kitfox 1 I bought. The muffler is already tight to the lower cowl, so I might need to do some modifications to install it. I have in mind a way to also use it for carb heat. I’ll post an update on it, once it’s installed, and I’m up and flying. 

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Posted

What engine do you have that needs carb heat?

 

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Posted

The answer is probably that my 503 doesn’t need carb heat. I have read a few reports of carb icing on Rotax 2 strokes, so I was considering it because of that. I’ve never had carb icing on the many snowmachines I’ve ridden, but it’s usually colder, and you’re banging around a bit (at least I do), and on and off the throttle, so not much chance for it there. You’re in the same area. Have you ever had any issue with it? I figured I’d put the wrap on the muffler and get some cab heat, and it wouldn’t be too much more effort to tee in carb heat. 

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Posted

Aircraft spruce sells a heat muff that goes around the 503 muffler. Has anyone installed this to heat the cabin?

 

Thanks

Vance

I made one for my 503, didn't work real good.

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Posted

There one on my model 1KF, havent flown it when cold, but have done alot of taxin when cold and i think it works ok.  Here earlier this month when Leni flew it he had mentioned to me, " hey by the way ur heater works pretty good" but the real tests will come this winter i hope. Mine is basically a copy of the one on dads PA12.

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