An electronic toilet and method of controlling the same. The electronic toilet includes a controller, a water spraying cleaner, a water chiller having a cold-water outlet pipe and a cold-water electromagnetic valve disposed on the cold-water outlet pipe, a water heater having a hot-water outlet pipe and a hot-water electromagnetic valve disposed on the hot-water outlet pipe, and a booster water pump. A water inlet of the booster water pump is connected to a confluent water outlet pipe of the water chiller through a water outlet pipe of the cold-water electromagnetic valve and the water heater through a water outlet pipe of the hot-water electromagnetic valve. A water outlet of the booster water pump is connected to the water spraying cleaner.

An electronic toilet and method of controlling the electronic toilet. The electronic toilet is connected to a cold water supply and a hot water supply and includes a controller that is configured to allow the electronic toilet to communicate cold water and/or hot water to a water straying cleaner that directed toward the anus of a user of the toilet.

An apparatus includes a high-pressure tank, a controller, a valve, controlled by the controller, and a heater.

A fluid heating system for heating a production fluid using a thermal transfer fluid, the production fluid being contained in a vessel includes an electric blower configured to receive ambient air and electrical input power and to provide output source air, a combustion system configured to receive the source air from the electric blower and to receive fuel and to provide the thermal transfer fluid, a heat exchanger configured to receive the thermal transfer fluid from the combustion system and configured to be in thermal communication with the production fluid to provide convective heat exchange from the thermal transfer fluid to the production fluid, and to provide output exhaust gas, and wherein the electric fan provides a predetermined volume flow rate of the output source air at a predetermined blower efficiency such that the fluid heating system has a Bulk Heat Flux of at least about 14.7 kBTU/Hr/ft.sup.2 and a Pressure Drop of at least about 0.7 psi.

An apparatus includes a high-pressure tank, a controller, a valve, controlled by the controller, and a heater.

A heating apparatus comprising a tank having a tank inlet, a tank outlet, a heat exchanger inlet and heat exchanger outlet. A heat exchanger is located in the tank and comprises a hollow body having a mouth coupled to the heat exchanger inlet and a flue outlet coupled to the heat exchanger outlet. A burner device has a burner head that is located at least partly located in the mouth inside said hollow body.

The present invention discloses an electronic toilet switchable between cold-water and hot-water and a method of controlling the same. The electronic toilet includes a controller, a water spraying cleaner, a water chiller having a cold-water outlet pipe and a cold-water electromagnetic valve disposed on the cold-water outlet pipe, a water heater having a hot-water outlet pipe and a hot-water electromagnetic valve disposed on the hot-water outlet pipe, and a booster water pump with a water inlet thereof connected to a confluent water outlet pipe of the water chiller through a water outlet pipe of the cold-water electromagnetic valve and the water heater through a water outlet pipe of the hot-water electromagnetic valve, and a water outlet thereof connected to the cleaner.

The present application discloses an electronic toilet switchable between cold water and hot water and a method of controlling the same. The electronic toilet includes: a controller; a water spraying cleaner; a cold-water pipe for supplying cold water; a hot-water pipe for supplying hot water; a water selector valve for receiving and discharging cold water from the cold-water pipe or receiving and discharging hot water from the hot-water pipe under the control of the controller, the water selector valve having a hot-water inlet connected to the hot-water pipe, a cold-water inlet connected to the cold-water pipe, and a water outlet for discharging cold water or hot water; and a booster pump connected between the water outlet of the water selector valve and the water spraying cleaner and controlled by the controller.

A fluid heating system for heating a production fluid using a thermal transfer fluid, the production fluid being contained in a vessel includes an electric blower configured to receive ambient air and electrical input power and to provide output source air, a combustion system configured to receive the source air from the electric blower and to receive fuel and to provide the thermal transfer fluid, a heat exchanger configured to receive the thermal transfer fluid from the combustion system and configured to provide heat exchange from the thermal transfer fluid to the production fluid, and to provide output exhaust gas, and wherein the electric fan provides a predetermined volume flow rate of the output source air at a predetermined blower efficiency such that the fluid heating system has a Bulk Heat Flux of at least about 14.7 kBTU/Hr/ft.sup.2 and a Pressure Drop of at least about 0.7 psi.

An apparatus includes a high-pressure tank, a controller, a valve, controlled by the controller, and a heater.