Hi, in describing the difference between the 50k BTU and the 70k stove you said the 50 offers more thermal protection for the propane tank; does that mean the 70k BTU stove is not as safe for the tank?
The PF9L50 has a connector which is claimed by its manufacturer that it can shut off at excessive temperature. This connector inherently limits the BTU output of the stove even at normal operation. The PF9L70 does not have this connector and can achieve higher output BTU.