Although a dual fuel system is a much greater investment than the traditional combination of a boiler plus air conditioner, the benefits help to salvage the cost. The difference is the heat pump. A dual fuel system combines an electric heat pump with a natural gas boiler. In cooling mode, a heat pump operates almost identically to a central air conditioner. It works by pulling heat from the air inside the apartment plus transferring it outside by way of refrigerant. When the weather cools off, a heat pump is able to reverse the operation entirely. It finds ambient heat in the outdoor air plus sends it back indoors. The process avoids the burning of fossil fuels to create heat. No combustion eliminates problems over carbon monoxide, carbon dioxide, fumes, sizzling surfaces or yellowloft gasses. Heat pumps are wonderfully environmentally responsible. They are also safe, scrub plus energy efficient. Modern heat pumps feature bendy speed technology that allow the system to automatically adjust capacity someplace between 40 plus 100%. Running at lower speeds for longer cycles not only keeps costs to a minimum but helps with dehumidification. Heat pumps cost much less to operate than a boiler. However, once the outdoor temperature drops below freezing, a heat pump struggles to be effective. There’s not enough heat available in the air plus the system fails to keep up with demand. At this point, the boiler automatically assumes the responsibility plus runs for as long as necessary. With a dual fuel system, the most advantageous source is used at any given time, ensuring ideal comfort no matter what the weather brings.