High Efficiency Gas Furnace Venting

And it has a gas burner with electronic ignition although condensing furnaces may have more electronic controls.

High efficiency gas furnace venting.

This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner. It uses a venting system to extract that heat before venting. Of the vent plus the furnace input and efficiency are factors affecting the temperature of the flue gases. Venting for high efficiency gas furnaces assembly here are some good venting practices.

High e furnaces have separate venting. Higher btuh furnaces produce higher flue gas temperatures. While the condensing furnace is different in its design and repair needs it does have some similarities to a conventional furnace. Example of high efficiency furnace venting on a roof 2.

It is classified as type bh venting. When the vent is withdrawing air from the house it expels the gas outside through the vent. How a high efficiency condensing furnace differs. It moves the air with a circulating fan.

A high efficiency furnace uses a different type of venting system because it extracts the heat that remains in those combustion gases before venting the resultant mixture of water and carbon dioxide. Two cases which can cause poor venting are the oversizing of the vent or reducing the. A high efficiency condensing furnace can achieve efficiency ratings of 90 or above. This type of pipe is called b vent.

Also known as the type b this vent is operating on the natural air convection. This ensures the water heater can heat the vent pipe enough to get exhaust gasses to rise out of the house. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. This residual liquid is highly acidic.

The two systems use different venting systems. Like a conventional furnace it takes in cold air from the house and runs it through an air filter. In a great majority of cases plastic piping is used to vent high efficiency equipment. On the other hand the higher the efficiency of a furnace the lower the flue gas temperature.

Venting for high efficiency gas furnaces materials due to the condensing nature of a high efficiency furnace its venting must be made of a material that is resistant to corrosion. What is vented is a residual corrosive condensate of water and carbon dioxide.