THE GREENFOX DRAIN-WATER HEAT RECOVERY DEVICE works well with all types of water heaters, including on-demand and solar systems. THE GREENFOX DRAIN-WATER HEAT RECOVERY DEVICE works well with all types ...

Here's a great device for keeping your home energy dollars from going down the drain. A drain water heat recovery device preheats the cold water bound for your water heater by circulating it in a coil ...