Residents living close to a biomass depot where a second fire has broken out in the space of six weeks are complaining at the lack of information from the company on the latest incident.
The blaze at Crow Edge, between Sheffield and Barnsley, broke out at 8.10am on Monday - involving a large pile of wood chippings used in biomass power plants.
It comes just six weeks after another huge blaze erupted, which took six days to extinguish.
Residents have voiced concerns about the length of time between both fires breaking out.
They are also upset at what they claim is a lack of information from the firm, which specialises in recycling waste wood.
Lynn Harrison, aged 60, said: “If these chippings can combust at this time of year what is going to happen if we get a spell of really hot weather over the summer?”
An R Plevin & Sons spokeswoman said: “Health and safety is of greatest importance to us and would like to assure that we will be working closely with the Envrionment Agency and South Yorkshire Fire & Rescue to readdress preventative measures to minimise the chances of this happening again.
“We sincerely apologise to residents for any inconvenience caused and thank them for their patience.”