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View Full Version : Gas furnace takes too long to heat up


mikey431
Dec 5, 2009, 02:40 PM
I'm not sure I have a problem but it seems my gas furnace takes too long to get to the temperature. The room temp. was 55 oF and I set the setpoint temperature to 65 o F. It takes 2 hours to get the room temp. to 57 oF... I stuck my hand to the vent and I can feel a little of warm air but its not exactly warm or hot... not sure what the expectation for temp coming out of the vent ? I checked the breaker and the thermostat and pilot light, they are seems to be OK... This is the first house that I have gas furnace and so I don't know if it is normal for the gas furnace to get up to the temperature?

hvac1000
Dec 5, 2009, 02:45 PM
Much depends upon room size,heat loss per hour of the room,etc. From what you stated the furnace could be to small or it might be firing at to low a rate to increase the room temperature at a reasonable time frame. It might be time for you to have a on site professional look over your situation to come to a conclusion since all we can do here is guess from the information you have supplied.