Atomization burner with flexible fire rate

An atomizing burner having an atomizing head and a flame tube, comprising:

• a first DC fuel motor adapted to deliver fuel flow to the atomizing head;
• a second DC atomizing air motor adapted to provide to an opening in the atomizing head where the atomizing air will atomize the fuel;
• a third DC combustion air motor adapted to deliver combustion air to the flame tube to aid in combustion of atomized fuel;
• a controller comprising a combination of hardware and software programmed to turn the burner ON and OFF, wherein to turn a burner OFF by controlling the fuel motor, the atomizing air motor and the combustion air motor to perform operations comprising:
• changing, in response to an OFF instruction, flow of at least one of flow of atomizing air, combustion air and/or fuel to a lower non-zero value;
• first discontinuing, after a first period of time since the changing, flow of fuel and flow of atomizing air;
• increasing, after a second period of time since the changing, flow of combustion air;
• maintaining, for a third period of time since the increasing, flow of combustion air;
• second discontinuing, after the maintaining, flow of combustion air;
• wherein the maintaining prevents buildup of excess heat inside the burner during the transition to from ON to OFF.