Résistance de chauffe-eau photovoltaïque my-PV ELWA

The ELWA from my-PV is a 2 kW PV water heating device that uses your solar power exclusively for hot water generation.

• Use 100% solar power
• Stepless control from 0-2 kW
• 2 ELWAs can be used for stratified charging
• The ELWA from my-PV (MPN: 12-0100) is a 2 kW PV water heating device that uses your generated solar power for hot water generation. The direct current from your PV modules is transferred directly to the heating element and immediately converted into heat without losses. The built-in MPP tracker ensures that the PV generator always operates at the optimal operating point. A grid connection is not required, as the ELWA is supplied directly by the PV generator in off-grid operation. The hot water temperature can be easily set via a rotary knob, while the LED indicators inform you about the current device status.
• Product highlights
• Cheaper than conventional water heating
• Hot water backup optionally usable
• Reheating from the grid
• No frost protection necessary
• No approval required
• Easy installation - cables instead of pipes
• How it works

The ELWA uses the direct current from solar modules directly for efficient heating of your hot water - no grid feed-in, no inverter and no connection permits required. The installation is incredibly simple. With this system you cover up to 50% of the hot water demand of a two- to four-person household. The water heater replaces thermal solar systems with an area of four to ten square meters and works optimally with a photovoltaic output of up to 2.5 kWp. For a continuous hot water supply, it can also automatically fall back on grid power if required.

• Your advantages over solar thermal systems
• Lay only two DC cables instead of complicated pipework
• Practically no losses between PV generator and heat storage
• No moving parts and no frost protection control - maintenance-free
• PV modules even deliver a higher yield at low ambient temperature

The system restarts automatically and ensures that your heat supply remains continuous

No sun, still hot water?

With the patented hot water backup, the ELWA ensures a reliable hot water supply even in bad weather. This allows you to switch off your conventional heating system in summer and extend its service life. Simply connect it conveniently to a socket. No grid feed-in is required, so no metering point is necessary. Enjoy a comfortable and reliable hot water solution that perfectly uses your solar power.

• Standard installation

The device is mounted as far down as possible in the tank to efficiently use the entire water volume. The insulated heating element is compatible with all common tank types, giving you maximum flexibility during installation. Choose between the standard G 1 1/2 inch sleeve for electric heating cartridges or mounting via adapter on the flange plate.

• Stratified charging

With two ELWAs in stratified charging mode, you maximize the efficiency of your hot water supply. One device is installed in the upper part of the tank, the other in the lower part, making hot water available even faster. They communicate via the existing DC line, so no additional wiring is required.

• Areas of application

Single-family house - The heater is the perfect solution for hot water tanks with a capacity of 100 to 1000 liters. Due to its extremely low starting current of only 2 watts, the ELWA starts even at minimal solar irradiation, which impressively underlines its outstanding performance and reliability.

In residential construction - In residential construction, the installation of grid-connected PV systems can often be complicated and time-consuming. With it, you find the ideal solution to supply every apartment independently and efficiently with energy - even in bad weather in summer.

• Scope of delivery
• 1x my-PV ELWA PV water heating device
• 1x IP21 cover
• 1 pair MC4 connectors
• 1x mounting and operating instructions