Sauna stove ComfortProm:
450 x 745 x H 855 mm
https://www.ozon.ru/product/pech-bannaya-comfortprom-stal-new-8-mm-dlya-parnoy-do-20-kubov-ves-89-kg-dl  ina-drov-do-40-sm-na-130-753791611/?at=Y7tjXZ05GtjDXG8VI3PAgyGcPWDg5jtA3nQrLuk1zjgM&reviewsVariantMode=2

Without Turbosmooth modifier:
Polys: 31,681
Verts: 33,518
With Turbosmooth iterations 1 modifier:
Poly: 254,520
Verts: 130,444

The Turbosmooth modifier with Isoline Display was applied to the required objects;
There is an FBX file (if necessary, apply the Turn To Poly modifier to the FBX file);
For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of materials is configured taking into account PBR.