If you have not yet registered on the Valsir web site fill in the form with your details and obtain free access to the download area where you will be free to download our price lists and technical brochures. You will also have the possibility of receiving our periodic newsletter: the best way to remain up-to-date on all the latest developments in Valsir.

Forgotten your password?

Valsir S.p.a
Waste and water
supply systems, underfloor heating system
and flush cisterns


Modern technology for every type of building.


Valsir delivers a series of packages that meet all the possible system requirements inside civil and industrial buildings and for the elimination of snow and ice from outdoor areas.

The use of a heat transfer fluid at low temperatures and the particular stratification of the heat in the room results in significant energy savings both in the heating and cooling mode.

The components of the Valsir radiant systems are made to high quality standards and in respect for the product and design standards of radiant systems.

Download the documentation

Characteristics of the radiant system

Floor heating today is without doubt the most technically valid heating solution for the residential, commercial and industrial sector.

The various system solutions available allow maximum flexibility and adaptability to all types of buildings and construction requirements.

Energy saving

Greater energy saving as compared with traditional systems.

Uniform temperatures

Uniform distribution of room temperatures.

Less heat loss

Less heat loss as compared with a traditional heating system.

Architectural flexibility

No limits of an architectural nature. Great reliability and flexibility to all types of building and construction requirements.

Heating surface

Elevated heating surface.

Optimum hygienic conditions

No irritated throats thanks to the optimum hygienic conditions.

No dust deposits

Elimination of mildew

Elimination of mildew on walls and deterioration of wooden floors or window frames.

Comfort and maximum performance

Thermal well-being

The so-called “thermal well-being”, that is, the sensation of comfort, which is created within a room, is present when the temperature takes on a particular distribution in relation to the height of the room. Such a temperature distribution is defined as the ideal curve of thermal well-being.

Hygienic conditionss

Floor heating systems do not favour the formation of damp areas on the floor and therefore, conditions are not generated that would favour the formation of dust mites or bacteria or of mildew on the walls.

Aesthetical advantages

There are no architectural limits linked to the presence of radiators/fan heaters, hence there is total freedom in furnishing a room. Wall mildew is eliminated as is deterioration of wooden floors and window frames.

A modern environmentally friendly system

Riscaldamento a pavimento Valsir


The thermal gradient that is generated with floor heating systems is such that heat loss is less than in a traditional heating system.

Unlike traditional systems, floor heating offers the possibility of recovering heat that is usually wasted due to the stratification effect of the air, which reaches higher temperatures near the ceiling; the higher the ceiling the greater the heat recovery.

Discover more

Energy saving

A modern system with reduced environmental impact as compared with traditional heating systems.

Radiant panel systems allow an average energy saving of 25% depending on the climatic conditions of the surroundings.

This important energy saving can be attributed to the fact that the large surface area of the floor is heated with a low temperature heating fluid.

Discover more

Systems comparison

Resistance Class 150 Class 200 - 150 Class 200 Class 200 - 250 Class 200 -
Surface type Pre-formed Pre-formed Smooth Smooth Pre-formed -
Minimum pipe spacing (mm) 75 50 50 50 75 50
Insulation thickness(mm) 20 - 30 10 - 20 - 30 30 - 20 -

V-ESSE System

The heating and cooling system designed specifically for residential buildings and offices where the laying height is at least 90 mm.

V-ERRE System

The heating and cooling system designed specifically for residential buildings and offices where the laying height is at least 72 mm.

V-ENNE System

The “eco-compatible” heating and cooling system.

V-ELLE System

For industrial situations where an elevated load resistance is requested due to heavy vehicles or industrial machines.

V-ZETA System

The ideal system employed for the creation of floor heating systems in industrial buildings without renouncing the ease of installation of the Valsir multilayer pipe on socketed panels.

V-RAIL System

This solution has been designed specifically for industrial environments in which the pipe is anchored to the surface by means of the special V-RAIL fixing bars made of a plastic material and equipped with biadhesive.

The ideal pipe for radiant systems


Pexal® is composed of multilayer pipes and different types of fittings that are chosen according to the installation technique adopted. There are various applications: from the distribution of hot and cold drinking water to centralised water supply systems, from radiator and fan heating systems to radiant floor, wall and ceiling heating and cooling systems, from compressed air systems to industrial plants.


Mixal® is composed of multilayer pipes and different types of fittings that make it suitable for all plumbing and heating systems. Thanks to its extreme flexibility it is the ideal product for the construction of radiant floor, wall and ceiling heating and cooling systems and due to its excellent performance it is used for the distribution of hot and cold drinking water, in radiator and fan heating systems and in industrial systems including systems for the distribution of compressed air.

Case history

The comfort and technology of our radiant systems installed in great buildings all over the world.


Alberobello (Italy)

State Archives

Mantua (Italy)

Lemon hot house

Puegnago del Garda (Italy)

Carlisle United Football Stadium

Carlisle (England)


Valsir provides complete support both during the planning phase and on site, thanks to a first-class technical office made up of a team of highly experienced engineers, capable of dealing with the most complex system requirements.

Discover more