Portable, ventable heater?

[wolfsburged]

Does such a thing exist?

I am imagining a heater set up similar to those "portable air conditioners" that have a dryer type duct to stick out a window.

Looking for something to do double duty as a shop heater/backup heater for the house. Would prefer not to have to worry about venting, with asthma I tend to notice the fumes very quickly on kerosene and similar non-vented heaters, even with a door cracked.

 

[wesalexleft]

I may have just found my future business partner. I'd thought the same thing. I've never seen one.