Small canister of propane are at propanes natural pressure according to temperature... At approximately 70°f. pressure in small (1 pound) canister is about 125 psi (same pressure as large tanks), you will need a regulator.... Many ways to go about this but it will depend on tank selections...
They make a device called a "steak saver" that will adapt the 1 pound canisters "disposable canister " connection to industry standard CGA 510 type of connection for "standard" propane tank connectors...
Once you have steak saver you can use standard fixed pressure(1/3 psi - about same pressure as NG) propane regulator... Or standard adjustable fuel regulator ...
Also fixed pressure regulator (called pancake style by some) can attach to standard 20 pound or 11 pound propane tanks.... BUT show venue may balk at large fuel tank for safety issues... Best to check with place where demo will take place on what restrictions they may have on fuel tanks for show...
Also 1 pound canisters tend to freeze up when fuel is drawn off to fast, plan on having second one you can swap or bucket of water to place canister in so water can "cool sink" the canister and draw off the cold...
Most important is assemble "system" before show and test it.... Really bad to get set up and find something is nor working for you....
Dale
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