Just replaced old hw tank - where is optimum place to fit the tank thermostat?
Many thanks
vented HW tank silly question
Oct 11, 2005
2 Replies
Fairly low down - maybe 1/4 of the way up. Bear in mind that there will be a vertical temperature gradient in the cylinder, with the hottest water at the top. If the stat is too high, it will turn off the heat source before most of the water is hot.
The closer to the bottom, the greater the effective capacity of the cylinder. But ensure it is a little higher than the bottom of the coil, or it will never be satisfied.
Christian.
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