Continuous operation and comfort, regardless of weather conditionsSeamless switching between photovoltaic and mains power supplyInvest in the future with the Qoltec 4000W solar inverter and enjoy energy independence. Thanks to the bypass function, it can be connected to both solar panels and the power grid, ensuring uninterrupted operation of the heating equipment. Thanks to this users can rest assured that their heating system will operate reliably under all conditions, with no interruptions in heat supply. Your home deserves the best!Comfort and economy - modern heating for your home!Why should you choose our inverter?- Thanks to advanced MPPT technology, the inverter ensures maximum use of solar energy, resulting in lower electricity bills,- It can be connected to both solar panels and the power grid, e.g. in the event of an energy shortage,- Ideal for various heating applications, from heating water in boilers to supplying underfloor heating systems,- Robust design and high quality workmanship guarantee long and trouble-free operation.Get the most out of MPPT technologyLower heating costs and greater energy independenceOur inverter uses MPPT technology to maximise energy efficiency, enabling optimum use of solar energy. In this way, the system continuously monitors and adjusts the voltage and current of the photovoltaic panels, to ensure maximum power point. This is advanced energy management allows the highest possible efficiency to be achieved from solar panels, even under varying weather conditions such as partial shade or changes in the intensity of sunlight. Solar energy in your heating systemReliable solution for supplying diverse heating systemsThanks to its advanced MPPT technology and BYPASS function, the inverter is ideal for : - Power supplies for electric boilers, enabling the heating of domestic water and electric heaters, providing warmth throughout the house,- It will also work in heating mat systems, which are used in bathrooms, kitchens or other rooms requiring additional heating, - Can be used for the supply of heating systems for swimming pools, allowing to maintain a comfortable water temperature in an ecological and economical manner, - Solar energy can be used efficiently to maintain an optimum floor temperature, which increases occupant comfort and reduces heating costs.Easy monitoring and configurationIntuitive interface, full controlThe solar inverter is equipped with an advanced LCD display that provides users with full control and transparency of system operation. Intuitive display menu makes it easy to configure and customise inverter settings to suit individual user needs. The display shows the current operating parameters, allowing the performance of the system to be monitored on an ongoing basis. Users can quickly check the current operating status of the inverter, including the operating mode (MPPT, BYPASS) and information on any errors or alarms.Your safety is our priority - advanced security technologiesFull protection - from overheating protection to short-circuit protectionThe product is equipped with a number of safety features to ensure safe and reliable use : Overvoltage protection: Prevents damage caused by excessive voltage from photovoltaic panels or the power gridShort-circuit protection: Automatically disconnects the system if a short circuit is detected, protecting the equipment and the installationProtection against overheating: A built-in temperature monitoring system automatically switches off the inverter if the internal temperature exceeds a safe levelOverload protection: Prevents damage caused by overloading, ensuring long-term, trouble-free operation of the equipmentProtection against power failure: The BYPASS function automatically switches power to the grid in the event of a power failure from the PV panels, ensuring uninterrupted system operationConfidence confirmed by a warrantyProduct with 24 months guaranteeDo you care about the high quality of the product you are buying? Our solutions will meet your expectations. The inverter we offer is covered by 24 month guarantee effective from the date of purchase.