With gas central heating and home reservation, one 2 kWh battery pack is enough for up to 3-4 hours of continuous operation. Reservation of the whole house is providing power for all electrical appliances: lighting, alarm, kettle, boiler pumps, sewers, etc.
If your home is heated electrically, 5-6 battery packs are required. However, we do not recommend reserving an electric boiler, as it is very energy-consuming. Modern homes hold heat well up to 24 hours. And the average time of emergency outages is approximately 5 hours.