90% Dual Fuel Split System

A 90% dual fuel split system is a type of heating and cooling system that combines two energy sources-electricity and natural gas or propane-to optimize energy efficiency and comfort. The term “90%” typically refers to the efficiency rating of the gas furnace, indicating it converts 90% of the fuel’s energy into heat, with only 10% lost as exhaust. This makes it a high-efficiency option for heating.

The system is “dual fuel” because it uses both a heat pump (powered by electricity) and a gas furnace (powered by natural gas or propane). The heat pump serves as the primary heating and cooling source. It operates efficiently by transferring heat between the inside and outside of your home, depending on the season. When outdoor temperatures drop too low for the heat pump to operate efficiently, the system switches to the gas furnace, which provides more effective heating in extreme cold.

Being a “split system” means it has separate components for heating and cooling: an outdoor unit (heat pump) and an indoor unit (furnace and air handler). These components work together to deliver optimal climate control year-round.

The advantage of a 90% dual fuel split system is its ability to automatically choose the most cost-effective and energy-efficient fuel source based on current conditions. This results in reduced energy costs, improved environmental impact, and consistent comfort throughout the year. It is especially suitable for regions with fluctuating temperatures.