Print: In this video a physiotherapist demonstrates gentle exercises for piriformis syndrome, a form of sciatica. The aim of these exercises is to stretch and mobilise the piriformis muscle in the buttocks and therefore to reduce the symptoms of sciatica. This video is part of a series on exercises for sciatica.
1 AGE: On average, your gas hot water heater should last anywhere between 8 to 12 years, while an electric model will last a bit longer at 10 to 15 years.  WATER: When you use your hot water tap, does the water look a bit tinted?
How long does a water heater last? A. As long as itâs still heating water sufficiently, without leaks or strange noises, you might still get a few more years of service from it. A water heaterâs useful life varies, depending on the type of water heater, the quality of the unit, and how well itâs been maintained. A traditional tank-type water heater lasts an average of eight to 12 years.