The invention discloses a heat collecting type 
combustor assembly with high efficiency and energy saving, comprising a 
combustor and a 
hearth, wherein the 
hearth has a 
hearth side wall; the hearth side wall is of a hollow structure, including an inner side wall, an outer side wall and an 
air cavity clamped between the inner side wall and the outer side wall; the upper part of the inner side wall is equipped with a 
waste gas inlet hole communicated with the 
air cavity; the lower part of the outer side wall is provided with a 
waste gas outlet hole communicated with the 
air cavity; an afterheat collecting 
water jacket is tightly attached on the outer side surface of the outer side wall; the upper part of the afterheat collecting 
water jacket is equipped with a water inlet communicated with awater inlet 
pipe while the lower part thereof is provided with a water outlet communicated with a water outlet 
pipe; and an energy collecting anti-
corrosion inner jacket is placed on the inner side of the hearth side wall, and is of a round sleeve shape with large top and small bottom. The 
combustor assembly in the invention has good energy saving effect and high economic benefit, and 
combustion effect better than that of the traditional combustor 
assembly, thus the consumption of the fuel can be reduced efficiently, and the hot water can be provided to the kitchen.