The Immergas range of high efficiency boilers are wall mounted, fan assisted, room-sealed boilers. The burner is lit electronically, and the heat output is controlled by a modulating gas valve.

The INTEC 12-30 SYSTEM INTERNAL is a heating only boilers used for hydronic heating. Domestic hot water is an available option (Hunt Heating only) used in conjunction with a stainless-steel hot water storage tank, diverter valve and probe. The boilers are supplied with a pump, pressure relief valve, expansion vessel and pressure gauge fully assembled and tested. They are designed for use with a fully sealed and pressurised central heating system using only Natural Gas and Universal LPG.