The paper describes the results of studies of the design model for a two-column radiator of central heating in tripleobjetive optimization conditions. The optimization problem is reduced to finding the minimum of a scales function in a 8-dimensional space bounded by 7. 8 or 9 inequality constraints. It is investigated the permissible region. https://www.ealisboa.com/best-offer-Duraflex-Circuit-Widebody-Fender-Flares-Fiberglass-Infiniti-G35-Coupe-Non-Sport-super-save/