Turn surplus solar energy into hot water.
CONTROL / GUARDEXY HEAT
Guardexy Heat is a hardware product that controls the use of available solar energy for water heating.

Use the energy that is available right now
02 KEY BENEFITS
More of your own energy at home
SURPLUS
Available solar energy can be used to heat water.
Heating that adapts to the situation
AUTOMATION
Control responds to available energy and the system settings.
Hot water without manual switching
COMFORT
The product operates as part of Guardexy Control.
Part of your energy system
OVERVIEW
Heat works as part of your home Guardexy Control system, connecting to solar monitoring and control.
Surplus energy · automation · comfort · overview
Put surplus solar energy to practical use
03 HOW IT WORKS
A simple energy flow.
SOLAR
→
SURPLUS
→
GUARDEXY HEAT
→
WATER HEATER / DHW
Hardware connecting control and water heating
04 CONNECTION
01
Solar installation
02
Guardexy Control
03
Guardexy Heat
04
Water heater / DHW
→
→
→
Heat builds on the assessment of available energy in Guardexy Control.
Heat is part of Guardexy Control
05 RELATED PRODUCTS
Solar overview and control
HOME / HOME+
The user can see energy data and the controls available for their installation.
Heat connects to Home or Home+ and, depending on the configuration, to a local connection with the technology.
Is Heat suitable for your installation?
06 COMPATIBILITY
Support varies by manufacturer, model and required function. We will check compatibility for your specific installation.
Guardexy Heat variants
07 PRICING
From 14,980.00 CZK excl. VAT
HEAT
Pricing depends on the specific installation.
Related products
CONTROL
Home / Home+ and, where required, Link, depending on the configuration.
See the price list for the current device price; the related scope depends on the specific installation.
Want to use surplus energy to heat water?
We will check your solar installation, water heater and a suitable way to connect Guardexy Heat.
Frequently asked questions
08 FAQ
How does Heat know surplus energy is available?
Heat builds on the assessment of available energy in Guardexy Control. Water heating control responds to the available energy and system settings.
Do I need Home or Home+?
Heat is part of Guardexy Control for the home and works with Home or Home+. Depending on the configuration, the solution may also include Link for local communication with supported technology. The specific setup depends on the installation.
How does Heat work with tariffs, the app and batteries?
Tariff: solar-surplus heating does not require spot pricing. A spot tariff can support scheduling grid heating during cheaper hours.
App: ALFRED.energy provides controller settings and operating information.
Battery: control distinguishes solar generation from battery energy to avoid unnecessary discharge for water heating.
Check the chosen variant: the three-phase solution requires an electrician. Self-installation guidance for the older single-phase device does not apply to it.
