Tiny detail when shopping for UPS: It is the kW rating that is important. Some UPS, especially at the small end, will have an artificially (marketing inflated)

Tiny detail when shopping for UPS: It is the kW rating that is important. Some UPS, especially at the small end, will have an artificially (marketing inflated) large kVA rating compared to the kW rating. Modern computer PFC power supplies (just about anything with an 80 Plus rating) will draw kW == kVA.