Nice ferris wheel analogy. One question I have at 19:00 is for simpler systems like Hot Water Recirc for on demand DHW. The ghost of Gosset past in the other video said it doesn't make much difference for small home systems, but for the optimizers and perfectionists out there installing systems, would it help at all to place the expansion tank on the recirc pump inlet side? Except in tank booster applications where the needed check valves would preclude that possibility. I'm assuming house pressure is so high the NPSHa is way above NPSHr so it's just fine to pump by suction, but I'm new to this.
Nice ferris wheel analogy. One question I have at 19:00 is for simpler systems like Hot Water Recirc for on demand DHW. The ghost of Gosset past in the other video said it doesn't make much difference for small home systems, but for the optimizers and perfectionists out there installing systems, would it help at all to place the expansion tank on the recirc pump inlet side? Except in tank booster applications where the needed check valves would preclude that possibility. I'm assuming house pressure is so high the NPSHa is way above NPSHr so it's just fine to pump by suction, but I'm new to this.