Patent ID: 6772713
Filing Date: 2004-08-10
Classification: F23L,F23N,Y02E,Y10S

Abstract:
A boiler comprising:a heat exchanger; a housing defining at least in part a chamber substantially sealed from ambient indoor air in the vicinity of the boiler; an air intake configured to provide air to the chamber for combustion in the heat exchanger; and an exhaust outlet configured to exhaust combustion gases from the heat exchanger to outside the boiler, wherein the heat exchanger is contained in the chamber and the exhaust outlet is at least partially contained in the chamber and the heat exchanger and exhaust outlet are spaced in the chamber to permit air within the chamber to circulate around the heat exchanger and at least part of the exhaust outlet, and wherein the air within the chamber cools at least one of: the heat exchanger and exhaust outlet.