Stelpro designs heaters for all circumstances. Take the ASHU, the large volume heater that is distinguished by its appealing appearance, its manufacturing and its sturdy composition. It is usually installed in large garages, but it is not uncommon for it to be seen in warehouses or any other kind of commercial construction site requiring a generous volume of heat. The ASHU works with great ease and has an incredible power scale from 2 to 60 kW.