... compact, instantaneous and constant hot water generator, energy saving, low maintenance New Model Steel Panel Radiator Heat Exchanger for domestic useModel ... 813, 760B, 1200B, 1400B, 1600BThis product integrates the heat radiator and heat exchanger into one unit. It can be installed in the ... ensures that instantaneously heated domestic hot water is supplied on-demand only and at any flow rate, up to the ...