The 20kW unit can cover a wide range of household appliances and items, however the exact items it can cover will vary for each application. The 20kW automatic standby generator is rated for a continuous output of 20,000 watts when utilizing propane, with a rated amperage of 83.3 amps at 240 volts. When utilizing natural gas, the unit is rated for a continuous output of 18,000 watts, with a rated amperage of 75 amps at 240 volts. You will want to ensure that all of the items you intend to run will not exceed this rating.
The breaker on the generator is designed only as accidental overload protection. If you are concerned that the loads you will be applying to the unit will immediately overload the generator, the generator may be too small for your application. To prevent this, the generator can be installed in many different configurations, including configurations where multiple transfer switches can be utilized, or sub-panels can be protected, provided the installation meets all local, state, and national codes. We recommend contacting your local certified sales dealer for sizing assistance. To locate a certified sales dealer, search your postal code here:
http://www.generac.com/Service/Deal....