The definition of DML Heating and Cooling is a type of system that uses air conditioning and heating to regulate the temperature of a home or business. This type of system is often used in climates where temperatures fluctuate drastically between summer and winter. It is designed to maintain a comfortable temperature range in the home or business, regardless of the outside temperature. DML HeatHeating and Cooling systems are usually composed of two main components: an indoor unit and an outdoor unit. The indoor unit is responsible for cooling and heating the air inside the home or business, while the outdoor unit is responsible for collecting and transferring the air from outside to the indoor unit. The outdoor unit is typically installed on the roof of the building and can be powered by electricity, natural gas, or propane. The indoor unit is typically installed in the basement or attic of the building and can be powered by electricity, natural gas, or propane. DML HeatHeating and Cooling systems are designed to provide efficient and reliable heating and cooling to homes and businesses, while also helping to reduce energy costs.