High Efficiency Gas Furnace Water Drain

The resulting no2 nitrogen dioxide and no nitrous oxide dissolve into the water vapor in the exhaust stream to form nitric acid.

High efficiency gas furnace water drain.

High efficiency furnaces naturally produce condensation as a by product of the natural gas burning. Your high efficiency furnace has an entire system set up to drain away the condensation it produces. This is typically flown out of a pvc pipe that comes from the furnace and drains into the floor drain in your furnace room. How a high efficiency condensing furnace differs.

What is vented is a residual corrosive condensate of water and carbon dioxide. This is one of the things that make it different from a standard efficiency furnace. It uses a venting system to extract that heat before venting. While the condensing furnace is different in its design and repair needs it does have some similarities to a conventional furnace like a conventional furnace it takes in cold air from the house and runs it through an air filter.

Since the drain taps into the exhaust system leaving it open to the air would allow for a potential exhaust flue gas leak in the living space which is a big no no. High efficiency boilers and furnaces require a condensate neutraliser to protect drain pipes from corrosion. And it has a gas burner with electronic ignition although condensing. It s all about how the furnace extracts heat from combustion gases.

The condensate trap is absolutely mandatory for a high efficiency gas furnace. A high efficiency condensing furnace can achieve efficiency ratings of 90 or above. Additionally the inducer motor would suck air through the drain if it weren t trapped which could. Why a high efficiency furnace creates condensation how in the heck does a high efficiency furnace create condensation water anyway.

A lower efficiency furnace extracts some heat from combustion gases and then quickly vents them out the flue pipe. 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. In old fashioned low efficiency gas burners all that gas the co2 the water vapor and the nitrogen products known collectively as nox went up the hot chimney into the atmosphere. Add new tablets monthly during air.

Condensate from a high efficiency furnace typically has a ph of about 5 0 but can range from 3 5 to 6 5. But a high efficiency furnace. The epa recommends that household water be between 6 5 and 8 5 for health reasons not because of damage to pipes. Shove the tablets into the drain pan opening and push them in farther using a dowel or long screwdriver.