F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/79
F22B 9/04 (2006.01) F24H 1/28 (2006.01) F24H 1/50 (2006.01) F24H 1/52 (2006.01)
Patent
CA 1160916
ABSTRACT OF THE DISCLOSURE A boiler for heating a heat-transfer medium, such as water in a domestic heating system with water- carried heat. The boiler comprises a tank for the radiator water: a combustion chamber, combustion-gas pipes which extend down through the tank and which discharge at the bottom thereof in a collecting chamber for combustion gases. At the upper part of the tank there is arranged an outlet to the radiators, while a tank-inlet from the radiators is arranged at the lower part of the tank. Also arranged in the tank is a pipe coil for heating tap water, whereat the coil-inlet for tap water is connected to a fresh cold- water pipe and is located at a level which lies beneath that of the tank inlet from the radiators. The tap-water coil has a lower part which is located beneath the combustion chamber in the tank, this part of the coil having a branch point from which a first branch pipe passes outside the tank to a mixer valve and is arranged to supply pre-heated tap water thereto, and from which a second branch pipe passes to the mixer valve via an upper part of the tap-water coil lying above the combus- tion chamber, and is arranged to supply to the mixer valve tap water having a higher temperature than that of the tap water supplied by said first branch pipe.
376023
Bernstein Ragnar
Borking Lars-Olof
Fagersta Ab
Swabey Ogilvy Renault
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