I have an oil burner with a tankless coil. No separate water heater. It has two dials on the side, see attached picture.
Is the grey knob on the left a tempering valve? I can't turn it. Is there a reason for that? I assume I loosen the screw to turn it.
If that is a tempering valve, what is the grey box on the right? It looks like its set at 165.
I have steam heat.
What are the optimal settings for summer and winter?
Is the grey knob on the left a tempering valve? I can't turn it. Is there a reason for that? I assume I loosen the screw to turn it.
If that is a tempering valve, what is the grey box on the right? It looks like its set at 165.
I have steam heat.
What are the optimal settings for summer and winter?
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