Does anyone have any information on how to build a fire-box and flue for a direct fired kettle?
I have a direct fired 5BBL kettle, it is a single walled kettle and I am in the process of insulating this and adding an outer cladding. Currently looking at using Chloride-free rockwool for the insulation.
I am not sure what the burners on this are rated to, they are able to bring 5BBL up to a boil, but it is taking way too long. Insulating the kettle should help this somewhat, but I would also like to add a fire box around the burners to help with efficiency and ventilation of the gases. No one here in the local area (Cusco, Peru) has much of an idea about fire-boxes or flue setups, however they can pretty much fabricate anything if I can show them what I need.
What I had in mind was to enclose 3 sides of the burner with stainless steel panels and then insulate those with rockwool. Then the 4th side would be the flue. Questions I have at the moment are how big should the flue be? I understand it needs to be insulated, but does it also require an extractor fan or similar? How low should the side panels go? The burner is approx 60 cm off the floor and the frame around it is approx 80 cm square.
Any suggestions or advice would be appreciated.
I have a direct fired 5BBL kettle, it is a single walled kettle and I am in the process of insulating this and adding an outer cladding. Currently looking at using Chloride-free rockwool for the insulation.
I am not sure what the burners on this are rated to, they are able to bring 5BBL up to a boil, but it is taking way too long. Insulating the kettle should help this somewhat, but I would also like to add a fire box around the burners to help with efficiency and ventilation of the gases. No one here in the local area (Cusco, Peru) has much of an idea about fire-boxes or flue setups, however they can pretty much fabricate anything if I can show them what I need.
What I had in mind was to enclose 3 sides of the burner with stainless steel panels and then insulate those with rockwool. Then the 4th side would be the flue. Questions I have at the moment are how big should the flue be? I understand it needs to be insulated, but does it also require an extractor fan or similar? How low should the side panels go? The burner is approx 60 cm off the floor and the frame around it is approx 80 cm square.
Any suggestions or advice would be appreciated.
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