IMPROVEMENTS IN DEVICES FOR RECOVERING CALORIES FROM SMOKE COMING FROM GAS BOILERS

摘要

The subject of the invention is a device for recovering some of the residual heat contained in the fumes F issuing from a gas-fired boiler 1 after they have traversed a main horizontal heat exchanger 2 with a small head loss, which device comprises, according to the main patent, an auxiliary heat exchanger 5 which is relatively flat and thin and stands vertically or slightly inclined to the vertical, offering a small resistance to a gas traversing it horizontally, and traversed horizontally by the fumes. The auxiliary heat exchanger 5 is arranged above the main heat exchanger 2, which enables the whole device to be contained within the horizontal space taken up by the boiler. IMAGE