In the northeast US, we're in the middle of winter, so some folks are adjusting their hot water heater -- especially if this is used for heating the house.
- The difference between the high / low setting should be around 20-30 degrees apart for many systems.
- Increasing the spread slightly (5-10 degrees), and lowering the temperature of the min/max settings (try 5-10 degrees at a time) can save 5-10% of your heating bill.
- A common setting is 140/160, although 135/160 may be hot enough for some systems. During the summer, 125/150 may be hot enough.
- Lower temperatures may make the heating / radiators quieter as they heat up. They will also cause less mineral deposits, making the hot water tank/system last longer.
- During the winter, may need to adjust hotter if the hot water is used for heating.
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