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Heat pump accessories

Everything you need to complete and protect a heat pump system: hydronic kits, expansion vessels, valves, dirt separators and sensors from the most reliable brands, for a workmanlike installation and stable performance over time.
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Which accessories does a heat pump need?

A heat pump performs at its best when paired with the right hydraulic and control components. In this collection you'll find the heat pump accessories that complete the system: from hydronic kits to valves, from expansion vessels to temperature sensors. These are products that directly affect the efficiency, safety and lifespan of the system.

Hydronic kits and connection groups

The hydronic kit brings together in a single module the components needed to connect the outdoor unit to the heating and cooling circuit: circulator, valves, pressure gauges and fittings. It simplifies installation and ensures correct water circulation to the emitters, whether radiators or underfloor systems.

Expansion vessels and pressure management

The expansion vessel absorbs the increase in water volume as it heats up, keeping the circuit pressure stable. It is an essential component for preventing the safety valves from triggering and for protecting the emitters. The choice of volume depends on the amount of water in the system and on the power of the heat pump.

Valves, dirt separators and circuit protection

To keep the water clean and operation safe, you need shut-off valves, air vents and filtering devices. Among these stand out the dirt separators for heat pumps, which trap sludge and oxides to protect the exchanger. Good hydronic protection reduces faults and keeps thermal output constant.

Sensors and control accessories

Temperature sensors and control accessories let the heat pump adapt its output to actual needs, improving comfort and lowering consumption. Thermostats, outdoor sensors and management modules make the system more precise and easier to use every day.

The available brands

You'll find original and compatible accessories from the leading manufacturers, with official warranty: CALEFFI for hydronic components, Baxi, Ariston, Mitsubishi Electric, Panasonic, Cordivari, Beretta and Haier. Prices start at around €81 for the simplest accessories and reach complete solutions at €1340.

Accessories for every type of system

Many of these components are also useful on other systems: from condensing boilers to heat pump water heaters, through to traditional heating installations. Discover all the offers on accessories and complete your system with the right products.

Frequently asked questions

Which accessories do you need to install a heat pump?
You usually need a hydronic connection kit, an expansion vessel, the shut-off and safety valves, a protection system such as the dirt separator and the temperature sensors for control.
What is the hydronic kit for?
The hydronic kit brings together in a single module the circulator, valves, pressure gauges and fittings, simplifying the connection of the heat pump to the circuit and ensuring correct water circulation.
Why do you need an expansion vessel?
The expansion vessel absorbs the increase in water volume as it heats up and keeps the circuit pressure stable, protecting the emitters and preventing the safety valves from triggering continuously.
Are the accessories compatible with all heat pump brands?
Many hydronic accessories such as valves, vessels and dirt separators are universal. For specific kits and sensors it's best to check compatibility with the model, choosing among the brands available in the catalogue.
Do temperature sensors improve consumption?
Yes, because they let the heat pump adapt its output to the room's actual needs, maintaining comfort while reducing energy waste.
How much do heat pump accessories cost?
Prices start at around €81 for the simplest accessories and reach €1340 for the most complete modules and components, depending on the brand and function.
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