A company is sending me 150 ft of 1 pex flex and a 70 plate exchanger for my unpressurized primary loop. There also sending me a grundfos UPS 26-99 circulator. I have 90 ft of old baseboard and can't imagine more load than 60,000 btu. May add dhw in the future. I'm thinking this circulator is way over sized or am I missing something. Furnace will be located 150 ft away and 4-5 ft lower in elevation.