Generator Question?
How big of a generator do I need to run my 15K BTU air conditioner? Assuming I may also be running a coffee pot or microwave at the same time.
Forum Discussion
4KW. It can run with a coffee pot, toaster, small RV microwave assuming the A/C is running and not trying to start. It might not run a blow dryer and curling iron at the same time as the A/C is running, that combo can be a heavier load than RV microwave (and coffee maker loads depend on what point in the brewing cycle).
With 4KW of genset, the 30 amp main for the whole RV is likely to pop before you overload the generator. Your house limit is usually 3.6 KW.
When my women start running their morning grooming and breakfast appliances it is usually a tossup whether the 30 amp breaker in the RV or the 30 amp breaker at the power post is the first to go. They blow breakers in my house too, usually too much on a branch circuit, as in trying to blow dry under the heat lamps.
For the A/C alone, Coleman sets 30 amp service, 4KW genset, as minimum for their 15K BTU/hour A/Cs and heat pumps. Brief starting loads go 2-4 times that capacity, and only the larger gensets have enough spare rotational energy to handle the overload.
With 4KW of genset, the 30 amp main for the whole RV is likely to pop before you overload the generator. Your house limit is usually 3.6 KW.
When my women start running their morning grooming and breakfast appliances it is usually a tossup whether the 30 amp breaker in the RV or the 30 amp breaker at the power post is the first to go. They blow breakers in my house too, usually too much on a branch circuit, as in trying to blow dry under the heat lamps.
For the A/C alone, Coleman sets 30 amp service, 4KW genset, as minimum for their 15K BTU/hour A/Cs and heat pumps. Brief starting loads go 2-4 times that capacity, and only the larger gensets have enough spare rotational energy to handle the overload.
