§ 1926.154 Temporary heating devices.

(a) Ventilation. (1) Fresh air shall be supplied in sufficient quantities to maintain the health and safety of workmen. Where natural means of fresh air supply is inadequate, mechanical ventilation shall be provided.

(2) When heaters are used in confined spaces, special care shall be taken to provide sufficient ventilation in order to ensure proper combustion, maintain the health and safety of workmen, and limit temperature rise in the area.

(b) Clearance and mounting. (1) Temporary heating devices shall be installed to provide clearance to combustible material not less than the amount shown in Table F–4.