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? While statistics show the average lifespan of a water heater is 8-12 years for a traditional tank water heater, there are many factors involved in the actual lifespan and what you are considering the term lifespan to mean.