In the Southern Tier of the US, Tankless Heaters are installed outdoors to save on the expensive air intake and exhaust system. The Aqua-Shield™ recirculation pump can be installed outdoors next to the tankless. The homeowner now has a greater choice of models without built-in pumps at more competitive prices. The heater manufacturers can now use smaller enclosures without the difficult to service built-in pumps. The external Aqua-Shield™ pump can easily be serviced by any… Read More