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Vaporstat vs Pessuretrol

JoeV Member Posts: 62
If 1 to 2 psi is a good, efficient pressure to run boilers, why do pressuretrols go up to 5psi or more? Why not limit them to 3?

Same with pressure gages going from 0-15, why not 0-5?

It seems to me that you would want your parameters at midscale and not bottom of scale for better accuracy.
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