Wall-mounted Backup Power Supply for Heating Systems, 700W, Pure Sine Wave Inverter

Uninterruptible power supply (UPS or Inverter) for heating system - necessary for any heating boiler and heating system, as it protects the boiler automation and circulation pump from voltage surges that cause damage to electronics, as well as ensures the operation of the heating system in the event of a power outage. An alternative to a generator, a voltage converter - an inverter. Designed to power 1000W.Pazudot voltage from the network, switches to lt;0.01s time operating mode. The inverter starts generating 230V AC pure sinusoid from any 12 Volt battery (max 200Ah). When voltage becomes available from the mains, the device charges the battery itself. The inverter works fully automatically. It can also be mounted on the wall. If the required device consumption is 60-70W, then:
Using the 50Ah battery will work for 6 hours.
Using the 100h battery will work for 12 hours.