Direct Vent High Efficiency Furnace Venting Diagram

This article describes side wall vent systems for conventional mid range efficiency heating boilers furnaces water heaters we include for comparison low temperature side wall vent systems used by high efficiency or condensing boilers furnaces water heaters.

Direct vent high efficiency furnace venting diagram.

The ml193df can be installed as a direct vent or non direct vent gas central furnace. And it has a gas burner with electronic ignition although condensing. It moves the air with a circulating fan. 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.

This is mostly stuff i learned during a training session from ipex one of the major manufacturers of plastic piping with a little of my personal experience and tips first of all venting must be planned in order to be sized properly. When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space contain ing the furnace the return air shall also be handled by duct s sealed to the furnace casing and terminating outside the space containing the furnace. Note in direct vent installations combustion air is taken. This high efficiency venting system must be installed when you install the new furnace.

Direct vent chimneys or exhaust for heating appliances. A gas fired furnace for installation in a residential garage. Can i do this if not how far to the right of the window and below the window can i be with the exhaust vent. Every high efficiency furnace installation manual will tell you this.

The furnace is equipped for installation in natural gas ap plications. My exhaust vent i want to move just right around the corner of the house approximately a total distance of about 48 inches. Other aspects of high efficiency furnace venting. Here are some good venting practices.

A direct vent and non direct vent installation. There are several other important aspects of high efficiency furnace venting. High efficiency or condensing furnaces exhaust the combustion gases and bring in fresh. My fresh air vent is about 3 feet below the window.

How a high efficiency condensing furnace differs. A conversion kit ordered separately is re quired for use in propane lp gas applications. The pvc pipes are used for air intake exhaust gas and to remove the corrosive condensation resulting from the combustion process. The diagram below from goodman shows the different venting requirements.

In high efficiency models the lower temperature of the exhaust can allow moisture a by product of combustion to condense in the flue especially when outdoor temperatures drop into the 20 s or below.