I am very interested in these Firman tri fuel generators.
At minimum, I would like to run two fridges, internet, water heater (heat pump mode), garage door, a few lights and a few device chargers. Ideally, I would also like to run three mini splits (one heat pump) or an 1800w electric heater.
Would the 7500w model be sufficient or should I go for the 11,600w model? The price difference isn’t significant, so I’m mainly wondering if there’s any down sides to getting the larger one. Noise seems to be identical. The larger model has a slightly larger tank.
Beyond running extension cords to everything, what is the best way to hook it up? Do I want an interlock or manual transfer switch?
How do you manage power, when the generator is running? Does the entire panel get power and you have to turn things off or is it better to have the electrician set it up so that only certain things can run?
I would plan to use propane as a first fuel source, because I have some tanks already and storage seems safer than gasoline. Once the propane runs out, what do I need to be aware of regarding the use of gasoline?