Reduce hot water and electricity costs
Maximum use of energy through efficient hot water generation and intelligent electrical surplus feed into the power grid.

Feed up to 600 W / 800 W into the power grid via a micro PV inverter.
Excess electricity from the boiler is simply fed into the power grid via a micro PV inverter.

2,000 W balcony power plant
Use the power of up to 4x photovoltaic modules or 2,000 Wp photovoltaic output. Because a maximum of 800 W is fed in via the inverter, the entire system is still a balcony power plant.

Intelligent control
No energy is lost. As soon as the boiler is fully heated or there is more photovoltaic power available than the boiler can use, excess energy is fed into the power grid.

display
The display of the switching device always shows the status of all connected electrical consumers.

The switching device is mounted on the wall using four screws.
Photovoltaic modules or electrical consumers are connected via simple screw terminals on the switching device.

The switching device has four photovoltaic module inputs, which can be recognized by the green colored terminal blocks. The photovoltaic modules or the extension cables of the photovoltaic modules are connected directly to the switching device. A simple screwdriver is required for this.

Up to three electrical consumers are connected to the blue terminal blocks. The fothermo switching device is designed for use in combination with the following devices: 1x fothermo photovoltaic boiler or heating element; 2x inputs of a micro PV inverter

The energy is primarily fed into the photovoltaic boiler via the fothermo switching device.

The switching device detects when the boiler has finished heating or when more photovoltaic power is available than the boiler can convert into heat. In these cases, excess energy is fed into the house network.

On particularly sunny days, the switching device starts feeding in partial surplus power from 1 - 2 modules early in the morning. This ensures that the house's basic electrical load is covered in the morning hours.

This means you save not only on hot water costs but also on electricity costs.

In this example, excess photovoltaic power is fed into the house grid via a 600 W / 800 W micro PV inverter. The fothermo switching device is required as an energy manager for this.

The switching device detects when the storage tank is fully heated or when more photovoltaic power is available than the storage tank can convert into heat. In these cases, excess energy is fed into the house network.

This means you save on electricity costs as well as hot water costs. This is a huge advantage over solar thermal energy. No energy is lost.

Reduce your hot water and electricity costs with the fothermo #OilAway set. As soon as the heating element's buffer storage is completely heated up, excess energy is fed into your own power grid via a micro PV inverter. The switching device ensures maximum efficiency of the entire photovoltaic system. Especially in the summer months, the hot water tank is already fully heated up by midday. With the switching device, all excess energy can now be used.