The United States is a very large country, and there are a variety of climates from coast to coast. The south tends to be very hot and humid when compared to the north. The southwestern region of the country is typically hot and dry in the summer, yet chilly in the winter. Sometimes within the same state, there are different climates. This makes cooling and heating systems important. The weather can be much cooler at night in the mountains. The temperature also tends to be a little cooler closer to the sea as well. Even in the summer, way up in the mountains, a heating system might be necessary. However, in the southwestern part of the country, or along the east coast, an air conditioner is a priority because of excessive heat and humidity. Not only does the air conditioner keep the home cool and comfortable but helps with moisture issues. There are other areas, with milder weather, where a few window air conditioner units will suffice. In those areas where the climate is hot and humid during the day and chilly at night, a central heating and air conditioning system is a good choice for comfort. This type of system relies on ductwork and provides both heating and cooling capability. A central air conditioner and furnace handle the needs of the whole home all year round. With payment plans, rebated and financing, central HVAC systems are affordable. During any type of weather, it’s convenient to have a thermostat to adjust to personal preference. In a cooler climate, where a centralized air conditioner system isn’t necessary, a boiler is an option to consider.