METHOD AND APPARATUS FOR DETERMINING COSTS ON CONTRACTS FOR THE SUPPLY OF CENTRAL HEATING.

摘要

For costing the heat supplied by a central heating installation, a system comprises a temperature governing unit (1), which detects the temperature outside the building by means of a sensor (7), a control unit (2) for determining the desired internal temperature of the building, and sensors (5), (6) for measuring the input and output temperatures of the water circulated in the heating bodies. The temperature signals are delivered to an invoicing unit consisting of an integrator (3) and a counter (4) which provide a summation of heat supplied with respect to time. IMAGE