IRSAP was founded in 1963 in Arquà Polesine in the Province of Rovigo. The company began its activity with the production of radiators in pressed steel. Three years later in 1967, Irsap launched TESI. Tubular radiators were still unknown in Italy at the time and IRSAP was the first in the market, in this way paving the way for the future success of the multi-column radiator par excellence. In 1981, Irsap came out with NOVO, the first bathroom towel warmer radiator produced in Italy.