How does underfloor heating work?
  • A boiler or heat pump supplies heat to the system by heating the water (that is pumped through it.
  • Primary pipework carries the heat from the heat source to the manifold(s). Manifolds distribute the heat to the underfloor pipe loops.
  • Pipe loops, with hot water flowing through them, heat the floor, typically at least 1 loop for every 20 m2 of heated floor area.
  • Controller switches the heat source on and off, and directs the heat to where it is needed to heat the rooms to the desired temperature.
  • Underfloor heating requires a flow temperature of around 50°C flow and 40°C return.
  • Feel comfort by controlling the temperature of each room with a Thermostat or by your smart home application.
Underfloor Heating System Characteristics:

Temperature distribution with floor heating system


Temperature distribution with convective system

    • Absence of convective motions.
    • Vertical distribution of temperature.
    • The temperature distribution is the nearest to the ideal curve and therefore “thermal well- being”.
    … To save about 25% or more thanks to:

    • Low temperature of the heating fluid.
    • Elevated heating surfaces.
    • Reduced heat loss.
    • Thermal well-being at lower room temperatures (1°C less than traditional systems).
    • There is no transport of dust normally caused by the convective motions.
    • No combustion of dust that creates stains on walls.
    • No risk of irritation of air tracts.
    • No architectural limits linked to the presence of radiators / fan heaters.
    • Possibility of using all available space.
    • Minimum architectural impact in buildings such museums and old villas.
Main Components of Central Heating System with Radiators
Wall Hung Gas Combi Boiler (with flue system)

A simple and modern style

  • The new MYNUTE S has been specifically designed for a trouble-free installation.
  • automatic temperature control in heating mode.
  • IPX5D electrical protection.
  • Primary heat exchanger in copper.
  • Double air inlet (right and left side) allowing to fit easily in the existing flues.
  • 9 liters expansion vessel, able to manage installations with high water content.
  • 3-speed circulator, 5 meters.
  • Intuitive and easy-to-use control panel with backlight digital display.
  • Suitable for connection with Beretta remote control panels (as option).
  • Compact dimensions and low weight allow MYNUTE S to be installed anywhere.
  • Dimensions (H x L x W): 740 x 400 x 332 mm
  • Weight: 33 Kg
Distribution and Control, Caleffi, Italy*
Dirt Separator
Automatic Filling Unit
Radiator Valve
Lock Shield Valve
Double Ball Valve
Thermostatic Head
Thermostatic Head

* Some items may not be included in the final system.

Piping (between the manifold panel and the radiators), Valsir, Italy
  • Heat performance
    • The presence of the aluminum layer, its thickness and position, result in excellent heat conductivity characteristics.
    • With Mixal®pipes it is possible to carry out floor heating systems with higher heat outputs.
    • In fact, the greater conductance generates higher temperatures on the pipe surface as compared with all-plastic pipes (PE-X and PERT) and this advantage is reflected, for example in the possibility of obtaining relatively low supply temperatures.
    • The greater performance of Mixal®pipes compared with all-plastic pipes means greater system output at equal flow conditions. An example: the 16×2 Mixal® pipe has the same thermal output as the 17×2 PE-X pipe.
  • Mechanical behavior
    • The mechanical characteristics of the Mixal® pipes make them ideal for use in floor heating systems. The bending radius corresponds to 2.5 times the pipe diameter and the circular section at the bend remains constant.
    • The pipe, once bent, remains in the desired position like a metal pipe; hence the use of anchor clips is not required as with all-plastic pipes.
  • Barrier against oxygen and UV rays
    • The inner layer in aluminum acts as a perfect barrier against the passage of gaseous molecules thus avoiding the danger of corrosion due to oxygen infiltration and damage caused by exposure to UV rays