Furnace running very hot...
So I have been noticing that my vent air has been notceably hotter. Like too hot. So I went to the furnace and put my hand on it. It is also too hot. It is not triggering the over temperature s...
Forum Discussion
groundhogy wrote:
“you are getting HOT flue gasses into the inside loop.”
Please explain further
A gas furnace has a "heat exchanger", which is a metal box with two pathways for air flow. One path handles the hot flue gasses and the metal structure transfers the heat to the other path which circulates the inside air.
The air flow in those two loops should NOT mix with each other. If there is a "hole" inside the heat exchanger, you can get the flue gasses inside and that might make the inside air much hotter than normal. That condition would also be dangers because of carbon monoxide.
It is impossible for anybody to gauge "too hot" without being there. IF....yours is designed so that the fan does not come on until AFTER the flame has been on for a while, then the initial blast of air when the fan does start can be quite hot.....and will cool down a bit as it runs.
And I don't know exactly what part you are trying to touch and finding it "too hot"......but that likely is normal for most of the internal parts, except for the incoming gas pipes and the very outside case.
