We depend on our water heaters to provide rapid hot water in several parts of our home: dishwashers, laundry washer, as well as in our showers and bathtubs. Although we don’t typically drink hot water from the tap, ensuring its quality is nevertheless important.

You probably don’t think much about your Annandale home's microwave as an appliance that needs a lot of maintenance. It just works and when it stops working you get a new one, right? That may work for your plug and play model from college...