MikeG88
Member
I've attached a scan of the blueprint section showing the location of my HWBBs and I penned in the approximate runs of 3/4" PEX that connect them. The HWBBs are typical slant fin type stubbed through the floor. The system plumbed primary/secondary - with the primary loop being 1" and this secondary loop is 3/4". (There are two thermostats shown in the print, but only one was ever installed (at design time- two zones were an option)). I've seen formulas and different rules of thumb for estimating feet of head but would appreciate an educated/experienced opinion.
I'm interested in using this information to plot my GPM on the curve chart for my current pump on the secondary loop. I have a problem most likely caused by a low Delta-T and it has been suggested (see my other recent thread) I reduce the volume through the loop either by changing out the pump or installing a flow restricter. I'd like to get an idea of what my flow is now and what the range of adjustment would be with other pumps, as well as how drastic the change would be using a flow restricter.
I'm interested in using this information to plot my GPM on the curve chart for my current pump on the secondary loop. I have a problem most likely caused by a low Delta-T and it has been suggested (see my other recent thread) I reduce the volume through the loop either by changing out the pump or installing a flow restricter. I'd like to get an idea of what my flow is now and what the range of adjustment would be with other pumps, as well as how drastic the change would be using a flow restricter.
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