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What should be paid attention to non-condensing flue

Update:11-11-2022
Summary:

A non-condensing furnace is designed to vent hot air fr […]

A non-condensing furnace is designed to vent hot air from your home outside via a standard chimney. However, older chimneys may need to be upgraded in order to accommodate this type of boiler. A condensing boiler must be vented through a special flue made of materials that are impervious to corrosion. This includes PVC, CPVC, and polypropylene. In addition, condensing products must have a condensate neutralizer kit and a drain line. In some homes, there may not be a drain near the boiler installation, which will require a separate drain line.

To prevent this problem, a non-condensing flue system has to have the correct temperature range for the boiler. This will prevent the formation of corrosive acids, which are harmful to your building's metals. This also prevents the accumulation of dangerous vapors in the furnace's heat exchanger. This type of boiler should be used only when the temperature of the return water is at least 135 degrees Fahrenheit.

A non-condensing flue can be made of metal, which is not suitable for condensing boilers. On the other hand, a concentric non-condensing flue system has flue gas pipes that are located inside a building. It is made of a double-sealed material, which helps ensure security.

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