The increase in the demand of whole house generators are claimed to be increasing because people cannot afford, for hours and days, to be without it, and this is a good reason behind this demand. The need to have a backup power that kicks in immediately is recognized by homeowners who are especially located in areas where power outages are common, and thus they are covered with power for hours or days that are needed. Homeowners have the choice to use a portable generator but this unit cannot give them power for days without going through refueling and maintenance process, which is going to be an inconvenience for the homeowners. Thus, to serve this purpose, the best option is a whole house generator.
Your whole house generator will function best with an automatic transfer switch because this switch will turn on the unit as soon as it detects that there is a failure in the electrical power. The advantage of an automatic transfer switch is that when the voltage would suddenly drop because of fluctuation, the switch will disconnect the house from the grid, letting the whole house generator take over the function of providing the house with continuous power with the proper voltage. The big difference therefore of this system as compared to a portable generator is that fact that the whole house generator would turn on and off automatically. Thus, you do not need to go outside during a very freezing weather just to set up the unit and crank start it up. Check this video https://www.youtube.com/watch?v=hl57y-c_bWc about generator.
Be aware that there are a lot of whole house Generac 22kW generators that are available in the market. Factors that will be your basis in choosing the unit would be the size of your home, what and how many electrical appliances you want to have power during an outage, and if you want a branded unit over a lesser known manufacturer. You can also buy a smaller and less expensive unit if you family is fine of not using during the power outage the air conditioning units of the house, using hot tubs and other luxury appliances. It is recommended that you get a unit that can generate the needed power capacity with ease and is known for its reliability, fuel efficiency and quietness.
Other considerations in deciding to get a whole Home Generators are the frequency of the power outages, and if these outages happen during winter time, as you cannot imagine yourself setting up a portable generator in the middle of a winter storm for example.
Further, before you make the final decision in choosing which whole house generator you will buy, you look at the capacity you need, the fuel requirements and the features the unit provides.