Ashley Hearth Products direct vent heater?

[mtnbbud]

Is anyine using this heater?

https://www.usstove.com/gas-appliances/gas-stoves-fireplaces/11000-btu-direct-vent-propane-heater/

If I pull out my furnance, I should be able to use the gas line.  I'm wondering how efficient it is since a lot of heat is probably lost with the exhaust.  I'm also wondering if extra heat shielding is needed around the exhaust.

[IB853347201]

It doesn't look like a good solution to me. 11,000 BTU is not much in comparison to the 30,000+ BTU's the average RV furnace puts out. 

[mtnbbud]

Good point.  I think a lot of the heat is lost through the exhaust.  I like it doesn't require electrity, but I wonder how quickly it'd go through propane....