Condensate Water From High Efficiency Furnace

Condensate from a high efficiency furnace typically has a ph of about 5 0 but can range from 3 5 to 6 5.

Condensate water from high efficiency furnace.

This residual liquid is highly acidic. Problems with the condensate pump. If the water sits in a trap and evaporates the acidity and corrosive effect will increase. When the flue gas drops below its dew point of approximately 135 degrees fahrenheit it starts to condense.

You can prevent slime and eliminate drain tube clogs in two easy steps. Most new residential and commercial heating and hot water systems include a furnace boiler or domestic water heater of the high efficiency condensing type. What is vented is a residual corrosive condensate of water and carbon dioxide. Condensation from air conditioning coils contains bacteria that can form slime and clog the condensate pan drain tube.

How a high efficiency condensing furnace differs. Like a conventional furnace it takes in cold air from the house and runs it through an air filter. While the condensing furnace is different in its design and repair needs it does have some similarities to a conventional furnace. How to purchase and install a condensate neutralizer.

But if there is an issue or a clog anywhere in the condensate line or drain water will begin overflowing and leaking from the furnace and onto the floor. With the pipes blocked the condensate backed up into the furnaces where safety switches shut the units down. It moves the air with a circulating fan. And it has a gas burner with electronic ignition although condensing furnaces may have more electronic controls.

It uses a venting system to extract that heat before venting. You can capture that heat with a high efficiency condensing furnace. In older homes a whole house trap might be buried in the floor and the main sewer line to the street is most likely cast iron even if modern pvc drains have been installed in the house. Condensate drains on the high efficiency condensing units were freezing where the drain pipes terminated outside the house.

It s important to note that ph is a logarithmic scale so ph 5 water is 10 times more acidic than ph6. Condensing appliances extract additional btus from the water vapor in the flue gas. A clog or problem in the condensate system your high efficiency furnace has an entire system set up to drain away the condensation it produces. Condensate drainage in a high efficiency gas furnace high efficiency or 90 or condensing furnaces use a set of two heat exchangers in order to retrieve more heat from the combustion products than their mid efficiency counterparts.