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?
Replacing your water heater with a new one will help you decrease your energy or gas bill with new technology. Typically, water heaters should last between 10-15 years and as long as you perform regular maintenance on it, it should last a good amount of time.est Answer: AO Smith makes a good heater, but I'd start planning a replacement. 14 years is a pretty long time for a heater to last.