What is the comfort?

Winter heating

Summer cooling

What is the Comfort? Comfort is the balance condition of the human body when it manages to give out its metabolic heat in the right proportions through the four ways of thermic exchange uniformly. These proportions depend, in importance order on: • Surfaces temperature • Air temperature • Relative humidity

		RADIATION:
		It depends on the around surfaces temperatures.
		CONVECTION:
		It depends on the temperature and the speed of the air.
		CONDUCTION:
		It depends on the surfaces temperature we feel.
		EVAPORATION:
		It depends on the pysical activity, the inner surfaces temperature and the air one.

Winter heating The requirement to grant the ideal exchange conditions in winter is the homogeneity of the surfaces and air temperature as indicated on bottom.

		IDEAL PROPORTIONS
	40÷50%	Radiation
	20÷30%	Convection
	1÷2%	Conduction
	25÷35%	Evaporation

The summer cooling In summer the ideal exchange proportions change lightly owing to the different kind of clothes and the higher surfaces temperatures and the air ones.

		IDEAL PROPORTIONS
	40÷50%	Radiation
	15÷25%	Convection
	1÷2%	Conduction
	30÷40%	Evaporation

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