These days, humans have gotten all fancy-schmancy with their gas and electric water heaters ... of copper tubing, and he notes that simply doubling up the tubing would increase the heat transfer ...

The aptly named Air Conditioner Water Heater, or ACWH ... compresses and expels from inside. The heat passes through a copper heat exchanger that connects to a home or building’s hot water ...

Water gets hotter as it passes back and forth through this copper honeycomb combustion ... preheat cold water before it enters the primary heat exchanger. The gas exits at below 150 F, cool ...

This whole assembly is connected to the auxiliary water heater in a series piping arrangement ... is pumped counter-flow to the effluent flow through the copper tubing on the outside of the heat ...

Power Pipe is a brilliant, easy-to-install heat exchanger that can ... layers of highly conductive copper coils, which effectively transfer heat from the waste water draining down the pipe.

These new heat exchangers have copper tubing designed with an even smaller diameter (5-mm copper tube) than competing heat exchanger designs, allowing for a better performing product with higher ...