It started with a typical call and a typical request from a favorite contractor. He wanted pricing on a pair of high efficiency boilers which is pretty routine, but in this case would be replacing a ...

Residential expansion tanks have gone through a lot of changes over time. The oldest expansion tanks I occasionally come across are in really old houses in Minneapolis and Saint Paul. These were ...

When a water heater is connected to a closed system, an expansion tank must be installed to prevent excessive pressure in the water. To help understand what this is all about, please read on. Why most ...