Chafing dishes for buffet and banquet — fuel and electric warmers that hold food at temperature on a line, plus the pans and frames to run it.
Fuel chafers are portable for off-site events; electric hold temperature steadily for fixed buffets. Both are available.
Kept topped up and lit, they hold service temperature for a typical buffet window; follow your own food-safety timing.
Most sets include the frame, water pan and food pan; check the item for what's included.