The Perge boilers M.C. and G.T.E.I. operate without any low limitation of the inlet temperature (oil) , without any mixing valve the mixing valve is not obligatory (without domestic hot water) for the wood boiler Standard equipment (M.C.) protected steel upper exchanger and fireproof ceramic lower exchanger, easily separable (M.C. 5.20 and M.C. 5.30 types) anti-boiling exchanger making possible to operate with a nitrogen pressurized expansion vase combustion control system ash box heating tools high level insulation