We just have had a construction work finished around the house. This season is so cold for me. I cannot go out and watch how they are working and progressing without wrappings all around my body. Well, those men were still efficient despite the freezing cold weather. What if the air is just right? They must be more productive. Do you know that one way to make it is by forced air heaters? They are a great alternative to electricity-powered heaters, both in the home and commercially. It works by pushing cold air through a hot flame by way of a fan behind it powered by propane, kerosene, diesel fuel, or natural gas. It is ideal for outdoor and other open spaces like construction sites and in large warehouse areas. If you have a crew of employees, or you yourself have to work during even the coldest winter months, a forced air heater will be a wise investment.