Dimensions of the IKI Pillar 36.0 kW sauna stove: length – 640, width – 640, height – 1400 mm

https://ateliesaun.ru/pech-dlya-saunyi-iki-pillar-36-0-kvt.html 
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The archive contains a 3ds max 2019 scene for Corona and V-Ray + fbx files.

Polys 231600
Verts 229868

The Corona Legacy Mtl model requires Corona Render version 1.5 or higher. Materials were converted to V-Ray using the V-Ray scene converter.

For Corona Render: It is recommended to install version 1.5 or higher, as the glossiness of materials is adjusted with PBR in mind.

If you're using a V-Ray version earlier than 3.1, be careful. In the materials, the BRDF section shows Microfaset GTR (GGX). If your version is older than 3.1, the BRDF field will be empty. Select Blinn, Phong, or Ward—whichever is more convenient for you.