Gas Furnace Flue Pipe Temperature

The temperature in the flue pipe of your furnace can run as high as 400 degrees celsius which is about 750 degrees fahrenheit.

Gas furnace flue pipe temperature. Heat will seal the tape to the metal pipe as the temperature climbs. This usually equates to a median pipe material temperature value of 86 to 100 degree f. 80 furnace flue temperature. When we are talking about gas furnace vent pipe code we need to talk about the different types of the vents first after all you want to keep your family safe from harm.

This temperature is an indication that your furnace is not running at maximum efficiency and you are losing heat up the chimney. Affecting the temperature of the flue gases. It is pretty important that this type of furnace is installed per manufactures instructions. Should be vented into a cat.

On the other hand the higher the efficiency of a furnace the lower the flue gas temperature. When applied to a cooled down pipe. Some building inspectors discourage taping up furnace clothes dryer and water heater flue joints so check your local building codes before using this tape especially when selling your home. Flue gases temperature in older low efficiency furnaces 78 and less efficient was sufficient to elevate chimney flue temperature to the point which guaranteed proper draft.

Either case will result in. Higher btuh furnaces produce higher flue gas temperatures. Well making sure that you choose the right venting style will protect them. Natural gas fired heating appliance with draft hood.

Two cases which can cause poor venting are the oversizing of the vent or reducing the btuh input to an existing vent system. Liquefied petroleum gas fired heating appliance with draft hood. Gas fired heating appliance no draft. When this temperature starts to exceed 130 degree f it is usually an indication that there is a problem.

An 80 condensing furnace flue temp. Good up to 600 degrees f. The different types of venting. Exhaust temperature o f o c chemical oxidation.

Will likely be above 275 degrees f. When connecting a new regular type known as category 1 type gas appliances furnace water heater with efficiency slightly below 83 old chimney flue size might. Ft3 the fuel consumption is 100 000 btu hr hhv basis and the heat delivered to the home is. Example 1 determination of the flue gas temperature from a natural gas furnace in this specific example the combustion device is an older lower efficiency natural gas home furnace.