Disclosed is an air heating apparatus including an expansion tank that preserves water, a water heater that receives heat from a combustion gas generated through a combustion reaction and heat the water, a heating heat exchanger that receives the water heated by the water heater and exchanges heat with air that is to be discharged for heating, a fan that sends the air to the heating heat exchanger, and a case, in which the water heater, the expansion tank, the heating heat exchanger, and the fan are disposed in an interior thereof.

Disclosed is an air heating apparatus including an expansion tank that preserves water, a water heater that receives heat from a combustion gas generated through a combustion reaction and heat the water, a heating heat exchanger that receives the water heated by the water heater and exchanges heat with air that is to be discharged for heating, a fan that sends the air to the heating heat exchanger, and a case, in which the water heater, the expansion tank, the heating heat exchanger, and the fan are disposed in an interior thereof.

Disclosed is an air heating apparatus including an expansion tank that preserves water, a water heater that receives heat from a combustion gas generated through a combustion reaction and heat the water, a heating heat exchanger that receives the water heated by the water heater and exchanges heat with air that is to be discharged for heating, a fan that sends the air to the heating heat exchanger, and a case, in which the water heater, the expansion tank, the heating heat exchanger, and the fan are disposed in an interior thereof.

Disclosed is an air heating apparatus including an expansion tank that preserves water, a water heater that receives heat from a combustion gas generated through a combustion reaction and heat the water, a heating heat exchanger that receives the water heated by the water heater and exchanges heat with air that is to be discharged for heating, a fan that sends the air to the heating heat exchanger, and a case, in which the water heater, the expansion tank, the heating heat exchanger, and the fan are disposed in an interior thereof.

An air heating apparatus according to the present disclosure includes an expansion tank that stores water, a water heater that receives heat from a combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heater and exchanges heat between the water and air discharged for heating, a fan that delivers the air to the heating heat exchanger, a circulation supply flow path that is formed to connect the expansion tank, the water heater, and the heating heat exchanger and guides the water in the expansion tank via the water heater to the heating heat exchanger, a hot water tank in which hot water is stored, and a hot water heating flow path.

An air heating apparatus according to the present disclosure includes an expansion tank that stores water, a water heater that receives heat from a combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heater and exchanges heat between the water and air discharged for heating, a fan that delivers the air to the heating heat exchanger, a circulation supply flow path that is formed to connect the expansion tank, the water heater, and the heating heat exchanger and guides the water in the expansion tank via the water heater to the heating heat exchanger, a hot water tank in which hot water is stored, and a hot water heating flow path.

A dual heating process is performed in the absence of an open flame. Heat is created by a rotating prime mover(s) driving a fluid shear heater. Heat is also collected from a cooling system of the prime mover, and from any exhaust heat generated by the prime mover. The heat energy collected from all of these sources is transmitted through heat exchangers to a fluid where heat energy is desired. The fluid being heated may be glycol or air, depending on the type of heat desired.

An apparatus and system for a combination space and water heater including a controller device and a method for control. The controller device is a self-contained system that can be added to, or in combination with, existing water heaters and hydronic air heating systems using standard plumbing connections, and provides a potable water system without any need of an intermediary heat exchanger. The controller device automatically monitors a heating capacity of the water heater and the hydronic heating coil over time, and correlates measured heating loads with one or more environmental temperatures, thermostats, user settings, and/or a supplemental heating system.

An apparatus and system for a combination space and water heater including a controller device and a method for control. The controller device is a self-contained system that can be added to, or in combination with, existing water heaters and hydronic air heating systems using standard plumbing connections, and provides a potable water system without any need of an intermediary heat exchanger. The controller device automatically monitors a heating capacity of the water heater and the hydronic heating coil over time, and correlates measured heating loads with one or more environmental temperatures, thermostats, user settings, and/or a supplemental heating system.

Example embodiments relate to a device for heating a medium and air. A heating source generates thermal energy by the combustion of a fuel-air-mixture. A heat exchanger serves to heat air passed along an exterior side, has an interior space into which flue gas generated during combustion of the fuel-air-mixture flows, has a fin structure on the exterior side, and transmits thermal energy to the medium pipe. The electric heating element generates thermal energy, the heat exchanger having integral structures for accommodating the electric heating element and the medium pipe. The medium pipe and the electric heating element are guided around the interior space of the heat exchanger.