Amur oven:
490 x 780 x H 790 mm

https://www.ozon.ru/product/pech-bannaya-chugunnaya-amur-s-zakrytoy-kamenkoy-panoramnaya-dvertsa-setka-1848210704/?at=NOtwkW7K3clrnLJvhBjmPJXUr0wNMpfnZLgDQH3lGRyv 

Without Turbosmooth modifier:
Polys: 341,619
Verts: 339,563
With Turbosmooth iterations 1 modifier:
Polys: 1,377,584
Verts: 780 989

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.