If you decide to install this type of heating system take extra precautions to make sure all ventilation systems are properly placed and working correctly.
High efficiency furnace venting through wall.
The difference is that a power vent water heater pulls in combustion air from the space.
Don t confuse direct vent heating equipment with the through wall venting and air intake of high efficiency boilers and furnaces.
The condition of the chimney is a factor because new super efficient gas furnaces do not vent up the chimney they are vented outdoors horizontally through a wall by a small plastic pipe.
The most efficient furnace units available today are gas condensing models which can achieve efficiency ratings of 90 or above.
I think don t it is possible to vent a 95 efficiency furnace up through an existing chimney.
I believe high efficiency furnances must be vented horizontally through a wall.
That depends on whether you have a standard efficiency or a high efficiency furnace.
Read more elaboration about it is given here in respect to this can a high efficiency furnace vent through a chimney.
Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys.
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.
You can capture that heat with a high efficiency condensing furnace.
A conventional furnace vents these combustion gases through a vertical exhaust system that is attached to the furnace.
I have not heard of high efficieny only lasting 10 13 years.
The exhaust gas is too cool for it to rise.
Instead both systems typically expel exhaust through a pipe that runs outside through an exterior wall.
However these combustion gases contain residual heat that is lost through the ventilation.
If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.
Here are some good venting practices.
Venting for high efficiency gas furnaces assembly.
The efficiency rating of a furnace is called afue annual fuel utilization efficiency.
One of the most important safety features of gas condensing systems is furnace sidewall venting.
I would be very leary of a hvac contractor would not do this.
In contrast modern high efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials such as pvc cpvc or abs for their exhaust vents some high efficiency furnaces also include a plastic pipe for intake area and all types.
A high efficiency furnace uses a different type of venting system because it extracts the heat that remains in those combustion gases before venting the resultant mixture of water and carbon dioxide.
So which type of venting system should your furnace have.
Should my furnace flue pipe go through the roof or the side of the house.
