I do tailgate parties outdoors into January, and I HATE sternos! I gave up with them and spent the last year using electric chafers and I will never go back. I put a quiet honda generator under the table and plug them in and they work great even though they say they are for indoor use. Amazon has them under 100 a piece. There is a 450 watt version that fits shallow full size pans, and there is a 900 watt version that fits deep pans. In really cold weather the 900 watt works like a champ. The only issue I run into is using half size disposable trays as they tend to buckle.
Go to amazon and google winco electric chafer and winware electric chafer.
I am going to make a decorative metal wind guard that will wrap around a bank of four of them with some graphics to polish up the look.
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