Marey PP24 electronic controlled tankless water heater provides a maximum of 4 points of use and up to 4.5 GPM. It can be installed in regions where the incoming water temperature reaches as low as 37 degrees. This very versatile unit is great for apartments, cabins, and tiny houses as a whole-house solution. The PP24 has a wide range of business and industrial applications with a maximum flow rate of 3GPM. It is an ideal unit for the Northern US region and Canada as multiple points of use solution In the southern US states, the unit will also provide enough heat for Jacuzzi tubs. Wall-mounted and with a space-saving design this unit is easy to install almost everywhere. The unit comes with a Backlit LCD Display for easy and exact temperature selection, is electronically controlled, and provides fast heating. The German-designed alloy bare heating element provides a constant output temperature even with a low flow rate. The unit is CSA certified and UL approved and it can be sold in the US and Canada.