80 parallel flow purulent light burners (strong drum model)

80 parallel flow purulent light burners (upper pumping machine)

245x28mm heat exchanger

Six rows of burners

95x18mm heat exchanger

112x19mm_1.34kw heat exchanger

112x19mm heat exchanger

121x19mm_1.73kw heat exchanger

Four rows of burners

245x28mm heat exchanger

The brass

260x28mm heat exchanger