Insulation ANTEK PW.The insulation for an fireplace with a water jacket is made of galvanized sheet and insulation wool protected with aluminium foil. It reduces the heat loss of the heated water to a large extent and indirectly affects the furnace efficiency up to 10%. As a result, the maximum amount of heat is transferred to a heating installation. In addition, the use of the insulation also affects the amount of the wood used, i.e. the economics of combustion. This means that we need less w