Maybe — the well pump decides. A 7,500-watt running rating is a common mid-size portable or small-frame generator. Honda’s Energy Star refrigerator (192 W running, 1,200 W starting) and a 1/3 hp furnace fan (700 W running, 1,400 W starting) together are only 892 W running, with the fridge setting a 1,008 W starting increment, before the pump is added. That leaves a lot of apparent room under 7,500 W. It is not a yes until you add the pump’s running watts and its starting or locked-rotor demand, at the correct voltage.
Use the same method as the other well-pump pages: nameplate running watts plus fridge and furnace, then add only the single largest starting increment. If the pump starts at several times its running watts, that increment may be the binding constraint even when running watts look easy. A 240 V pump needs a 240 V generator and inlet.
7,500 W is also just above a 30-amp, 240-volt inlet (7,200 W). If you already have a 30-amp inlet, the inlet — not the generator marketing number — may be the limit; see the 30- versus 50-amp page. Enter the nameplates in the calculator. This combination still assumes a gas or oil furnace, not electric heat.
This is not a permit calculation, a utility approval, or a substitute for a licensed electrician, HVAC contractor, or the authority having jurisdiction. Panel Headroom is an independent educational site. It is not a utility, a certification body, or a contractor. Electrical and generator work that is done incorrectly can cause fire, shock, or carbon monoxide poisoning. Use the adopted electrical code and manufacturer instructions; pull permits where required.