The paper presents the results of the simulation of convectional heat transfer in buildings with radiant gas heating. The study is provided by numerical researches based on existing buildings and numerical studies with the use of modern software ANSYS Multiphysics Fluent. Autodesk Inventor. The data reliability is ensured by the use of fundamental laws in regards to numerical research... https://macorners.shop/product-category/wooden-card-with-pop-out-ornament/