Flavel Regent FRGCP0MN Installation And Maintenance Instructions Manual page 21

REGENT
RADIANT CONVECTOR GAS FIRE
User Instructions
This section of the instructions should be read by the user before
operating the appliance and retained for future reference
Model No's FRGCN0MN & FRGCP0MN are for use on Natural Gas
(G20) at a supply pressure of 20 mbar in G.B. / I.E.