We are fortunate enough to have a friend who owns a white tent that we will be using in "case" of rain. im figuring though, that if it rains, it will be chilly.. so id like to rent some heaters. but how many do i need? The tent is 40x40 this is the kind of heater:
http://www.eventsbyeagle.com/catalog/products/tent%20heater.jpg althought, i like these better, im told you arent to use them inside a tent??
http://www.eventsbyeagle.com/catalog/products/event%20specialties-heater%20patio%20black%20lp.jpg