A tankless water heater is a most efficient device to use hot water on demand. Unlike traditional heaters that keep hot water ...

They also have limited flow rates, which means the ... popular alternative to traditional water heaters that moves heat from the surrounding air to the water being heated. It uses a compressor ...

These days, humans have gotten all fancy-schmancy with their gas and electric water heaters. Heck ... the output reaches 105 F at a flow rate of 0.67 gallons per minute. By [Lou]’s calculations ...