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.
NOVO embodied an innovative way of perceiving radiators as no longer only heating elements but also as décor accessories of their own, clearly illustrating the meaning of the new brand designer radiators: TERMOARREDATORI®. Interior décor with heating elements permits the personalization of the home or office with a range of colors, shapes and sizes. This approach has accompanied IRSAP throughout its constant evolution.
IRSOL was founded in 1978 for the production of solar energy systems and electric radiators.
In 1996, IRSAP entered the air-conditioning sector with the proposal of a complete range of products. This was the birth of designer air conditioning: CLIMARREDATORI.
In order to further consolidate its presence in the air-conditioning market, IRSAP purchased Rhoss, a historic company in Italy's Friuli region in 2000.