Our factory have established this height in the fear of heated working environment is not beneficial to machine heat dissipation (radiation). Especially for the convection oven, if used for cooking for extended periods, the placement and the working environment of the machine must be conducive to heat radiation.
Please understand that this standard may vary by company. For safety concerns, our suggested best installation range is to leave a minimum clearance of 750px above, 500px to either side or behind..