Sealed Combustion Duct Furnace

Also featured is the factory installed power venter and sealed flue collector that controls combustion and excess air during on cycles.

Sealed combustion duct furnace.

Modine s gas fired duct furnaces are designed for both indoor and outdoor installations. The highest performance combustion furnaces are sealed combustion direct vent condensing gas furnaces with an annual fuel utilization efficiency afue exceeding 94. Both models offer high effciencies that achieve annual fuel savings of up to 25 over conventional duct furnaces. The combustion chamber is the part of the furnace where natural gas is burnt to create the heat that enters into the heat exchanger.

Sterling introduces the nexus unit heater a leading edge condensing heat exchanger delivering up to 97 efficiency. The highest efficiency furnaces today combine sealed combustion with a second condensing heat exchanger. Sales literature technical literature. Featuring a single stage two stage or full modulation firing rate this durable 316l stainless steel heat exchanger is available with both natural gas and lp gas flexibility also field.

Finally going with. For combustion to occur the furnace needs to draw in air to mingle with the gas from the burners. Where the furnace draws this air is the difference between standard atmospheric. The separated combustion furnace is designed for use in building areas with negative pressure and or extremely dirty or mildly corrosive atmospheres.

These types of furnaces have a dedicated pipeline that runs directly from an outside vent into a sealed combustion chamber of the furnace and a sealed vent to the outside of the home for venting the toxic fumes from the combustion process. In furnaces that are not sealed combustion units backdrafting of combustion gases can be a big problem. Sealed combustion also makes a furnace more energy efficient. The combustion chamber loses less heat to the outside making the furnace cost less to run.

Due to high efficiency furnaces having their own fresh air intake no air is drawn from inside your home. Duct furnaces separate their combustion air form the air in the heated space. Primary applications are for building heating cooling and make up air systems. The sealed combustion furnace.

As we already mentioned this is one of its biggest benefits. Reznor s sc separated combustion gas fired duct furnaces are designed to separate their combustion air from the air in the heated space. They are designed for use within a building s duct work with upstream air mover by others.