a space is to be maintained at 75 F and 50% relative humidity. Heat losses from the space are 225000 btu/hr sensible and 56250 btu/hr latent. The latent heat transfer is due to the infiltration of cold, dry air. The outdoor air required is 1000 cfm and at 35 F and 80% relative humidity. Determine the quantity of air supplied at 120 F, the state of the supply air, the size of the furnace or heating coil, and the humidifier characteristics.