My older home has a water heater I've considered upgrading to a more efficient model. After checking out the current model it appears this house is on it's third water heater already, both hot and cold have two coupling soldered in line. In fact there's no room to add another coupling without tearing into the wall to access virgin copper.
So my question is, since water heaters need to be replaced why aren't they installed with unions ? I'm sure there's a logical reason but I can't figure out the logical reason .
So my question is, since water heaters need to be replaced why aren't they installed with unions ? I'm sure there's a logical reason but I can't figure out the logical reason .