A friend has asked me to cook on site for a small business party this Saturday. This party is to take place outside complete with a bonfire. The party is taking place at a home they purchased last summer but have not moved into. It is in the country with lake, barns etc. Very picturesque. I guess that is why the party is happening there. There is no furniture in house so this get together is definitely staying outside. My concern is keeping the food warm. I may be wrong but I am not sure chafing dishes will do the job as the temps are supposed to top out at 39 degrees. Yes there is electricity but I didn't want to invest in slow roasters etc but that may be the only way. Any input would be appreciated.