Anyone using the Mr. Heater "Journey" catalytic heaters?

I have a Buddy heater that I removed the regulator from and plumbed it into my propane line with a hose. I spend winters in Florida which is very humid and have had no issue with condensation. Just make sure to crack the roof vent and a window a bit. It uses much less propane than the furnace and uses no electricity. I have a CO detector with a display and it has never gone above zero.

I'm tempted to try the Flame King's version which has the added benefit of a thermostat and a bit higher output.

Available on Amazon:

Flame King portable heater on Amazon