Blower Collar for Combustion System

A heat generating system for use with a water tank, the heat generating system comprising:

• a blower;
• a burner configured to be mounted within the water tank;
• and
• a blower collar configured to be mounted to the burner and to the blower outside of the water tank;
• wherein the blower collar comprises:
• a bottom portion having a circular opening surrounded by a burner mounting rim configured to mount to the burner;
• an upper portion having a non-circular opening surrounded by a blower mounting rim having a blower mounting hole and being configured to mount the blower mounting rim to the blower;
• and
• a central portion between the bottom portion and the upper portion, wherein the central portion includes a surrounding wall connected to the burner mounting rim and the blower mounting rim, and wherein the surrounding wall surrounds an inner pass through having a cross-sectional shape that changes from the non-circular opening of the upper portion to the circular opening of the bottom portion.

A water heater comprising:

• a water tank configured to store water therein;
• a blower configured to blow a combustible gas;
• a burner configured to be mounted within the water tank and to ignite the combustible gas to generate heat to heat the water;
• and
• a blower collar configured to be mounted to the burner and to the blower outside of the water tank,
• wherein the blower collar comprises:
• a bottom portion having a circular opening surrounded by a burner mounting rim configured to mount to the burner;
• an upper portion having a non-circular opening surrounded by a blower mounting rim having a blower mounting hole and being configured to mount to the blower;
• and
• a central portion between the bottom portion and the upper portion, wherein the central portion includes a surrounding wall connected to the burner mounting rim and the blower mounting rim, and wherein the surrounding wall surrounds an inner pass through having a cross-sectional shape that changes from the non-circular opening of the upper portion to the circular opening of the bottom portion.