Obox : recover shower waste water heat.

My two annual gas bills before obox were 15 658 kWh and 15 325 kWh. The  three years after I had obox installed, I paid for 11 412 kWh, 10 786 kWh and 12 859 kWh. As the water consumption  was steady,  and the winter colder than usual (my heating systems runs on gas too) these savings can only be due Obox.

"Simple way to comfort and savings"

Robert P., Toulouse (31)

My EHTech WWHRS preheats the water for the two showers of my home. It’s been very easily installed in the false ceiling, bypassing the previous drain pipe. Obox is a must have for large families, especially when hot water availability is an issue ! I even save 200 €/year, whereas that was not my initial goal. I recommend EHTech, as they’re serious and skillful people !