I just bought a new Portable Fireplace and it can contain the propane tank inside it. I also bought some firestones to put in the fire area. The only problem with this is that if I want to turn on/off the fireplace then I need to lift up the fire place and then turn the propane tank valve on/off.
Which is do-able but a bit of a hassle. I was thinking to keep the propane tank valve always on. If I do that, I can still rely on fireplace valve to turn the heat on/off. The only potential problem with this is that my propane tank valve would be perpetually on.
This leaves me with one question: what can potentially happen if the tank is on. is it going to leak the gas or is it plain out hazardous to safety?
There are two possibilities:
Either you make the tank valve available with an access hole or similar,
Or you install an external valve, but this would defeat the logic of having the isolation valve as close as possible to the tank with no intermediate piping.
Making alterations to the gas system may invalidate any insurance coverage unless you have it inspected by a relevant authority - depends on the location ... Lots of regulations for gas systems as the possibility of a big bang is high :)