The Geyser Gecko SG4000 is a water-heating controller system that turns your geyser into a smart-controlled device. It can operate completely stand-alone (off grid) or connect to your existing grid setup. The controller takes both normal grid AC and solar PV input as power sources. The system can convert the DC signal from the solar panels into a pulsed DC signal that is suitable for a geyser element. The controller also automatically switches between PV and AC when required. The Geyser Gecko can be controlled and monitored remotely by using the GeyserGecko Mobile App.

Hybrid Solar Geyser Solution

The Geyser Gecko is your answer to a hybrid solar geyser. It uses solar panels to heat up your existing electrical geyser (up to 4 kW geyser elements supported). It can be set up to operate as a hybrid between AC and PV power, where AC power is partially used to heat up the water and the solar panels heat it up further. It can also be used in PV-only mode, where only solar panels are used to heat up the geyser. It can be monitored and configured remotely by using the Geyser Gecko mobile companion app.

Key Features

• Easy Installation: The Geyser Gecko can be installed into existing electrical geyser installations and does not require a different geyser element.
• Save Energy: More than 50% savings on geyser power usage.
• Powerful: Supports geyser elements of up to 4kW.
• Solar Support: Supports solar panels with a combined maximum open-circuit voltage of 250V and short-circuit current of up to 10A. A minimum of 1600W of panel power is recommended.
• Accurate Readings: Accurate geyser temperature measurement with a digital probe (supplied with the Geyser Gecko).
• PV Input: Can function with PV input only.
• Hybrid Functionality: AC and PV mode provides a hybrid solution between solar and the power grid, with the power grid used to supplement the PV power.
• Adaptable: Can be used with existing conventional geyser installations; does not require any special geyser element.
• Mobile App: Can be monitored and controlled remotely by using the Geyser Gecko mobile companion app.

The Geyser Gecko Kit

The following components form part of the Geyser Gecko kit:

• Geyser Gecko controller
• Digital temperature sensor
• Mobile App
• Change over, 20A AC 2-pole breaker and DC circuit breaker (with latest SANS switching certification).

Technical Specifications

Installation kit required

• Geyser Gecko controller (1x Geyser Gecko per geyser)
• Distribution Board (Type depending on location of installation)
• Note: NOT IN ROOF; recommended as close as possible to the main DB board
• Solar PV Panels:
  • Recommended max input: 1800W max
  • For optimal results: use at least 1600W of combined PV power
• Rails: According to panel size
• Tile Brackets: Depending on the quantity of panels/roof type
• Anti-Theft Clips:
  • Depending on the quantity of panels (4 clips per panel)
• 4mm PV Cable (Black): Length depending on location
• 4mm PV Cable (Red): Length depending on location
• Earth Cable:
  • Length depending on location and DB
• Lagging:
  • Length depending on location
  • Cable ties to secure digital temperature probe
• Conduit: Depending on location
• Sprag: Depending on location
• MC4 Male/Female Connector
• CAT5E/CAT6+FTP+Shielded Cable:
  • Depending on location of installation to extend digital temperature probe
• Ventilation Plug: Depending on location of installation
• Wi-Fi:
  • Confirm installation has reliable Wi-Fi reception in the location that installation is being done