Best Of

do you need more output?

If not running at a lower firing rate and a more constant run will be most efficient

If you running condensing mode, a small firing rate in a large hx equals more condensation , higher efficiency

The combustion analyzer is important for dialing in an efficient burn

That added loop probably emits a small amount just from convection.

Unless we don't see another piping connection, I don't see it actually circulating through?

I would use a manual bleeder. Less likely to leak in an area where they are not visible