You mean one
like this? - search for "forced air kerosene heater" - you will get a bunch of them - those most like like variation of the same 3 models made in the Chinese factory.
Generally the forced air models are for large spaces.. the smaller convention based models (without fans) will work just fine in smaller spaces.. Hot air rises and these heaters get really hot, so air within a room will circulate naturally past the heater once it has a good stack draw going.
If you live in home with a forced Air furnace, you also have a "fan only" setting" you could use to distribute the heat - just put the heater near a return vent..
My buddy designed his wood stove this way..and got it as close to the return as the codes would allow. The wood stove will be primary source of heat for the home, but he took a ration of sh*t for putting in a propane based forced air backup. Where he lives everything ( and I mean everything) is done with electric baseboard heat, and they are laughing at him for having the the "more expensive" propane.. You can't really do electric heating and run it off of a PV system. (The system gets prohibitively large-- and you are better off doing hot water heat if you really want to heat with power from the sun... )
I just don't see the downside of having a backup system and 500+ gallons of propane fuel stored on site, even if it costs a bit more in the current realm.