Ask Experts Questions for FREE Help !
Ask
    rra_78's Avatar
    rra_78 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Dec 26, 2005, 07:00 AM
    Furnace blower on manual
    Our installer told us to run our air blower on manual and continuously. During the winter months, it seems to make the house "drafty" by pushing unheated air through the system when the furnace is not running. He also said that the cost of running the blower would be negligeble. What are the benefits and disadvantages of this situation. Could anyone provide advice. The furnace was installed approx. two years ago. Thanks.
    Lotta's Avatar
    Lotta Posts: 124, Reputation: 8
    Junior Member
    		  
    #2

    Dec 26, 2005, 07:15 AM
    How old is the furnace?

    I would leave the furnace blower on auto but not on manual.

    The newer furances have a blower that has multi speeds and the blower will run on low speed when the burner is not on. This is supposed to keep cold spots out of the house. If your furnace only has a one speed blower then I would not keep the blower on manual. It will keep cooling down the house and making the furnace run longer.
    rra_78's Avatar
    rra_78 Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Dec 26, 2005, 07:22 AM
    Thanks for your reply. The furnace is just two years old. I don't know if the fan is multi-speed as you suggest.
    Lotta's Avatar
    Lotta Posts: 124, Reputation: 8
    Junior Member
    		  
    #4

    Dec 26, 2005, 07:37 AM
    If it has a multi speed blower then you will feel a different velocity of air coming from the vents at different times of the heating cyle. If you only feel one velocity of air coming from the vents then you may have a one speed blower. You should have an owners manual that should tell you if the furnace is a one speed or a multi speed blower. See what the owners manual has in it.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
    Uber Member
    		  
    #5

    Dec 26, 2005, 07:48 AM
    Most people leave the fan on auto. Most blowers have a range of speeds the installer selects to make it run the most efficiently. That is nearly always a slower speed for heating than cooling. Usually the furnace is wired to give the higher speed on continuos.

    If you find the continuos fan drafty and uncomfortable, try turning it to auto and see how you like it.

    I have seen no tests showing which one is better. I have read that running the fan on a windy day reduces air infiltration, but do not know if the guy had any proof. Many opinions have no facts to support them.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Furnace Manual Fan OK - Not Auto Though [ 1 Answers ]

I have a York Stellar Plus (15yrs old) with an Auto and Manual Fan Switch on the T-stat. The Fan will work when turned to ON (at the T-Stat) but it will not come on when you turn the heat on with the Fan switch turned to Auto. I have replaced the Limit Switch. No difference Thanks!

Using the furnace blower fan continuously [ 3 Answers ]

Please let me know if it is more efficient to have the blower fan on continuously rather than in the automatic position. If so, does it make a difference in heating mode or AC mode?

Using a furnace blower as exhaust fan [ 1 Answers ]

I am trying to get the wiring for the blower I have. :confused: One side I have a black, white and red wire which goes to the plug. The other set of wires I have red, white, blue, yellow, and black. What goes with what? Please help me.

Furnace blower? [ 3 Answers ]

This morning my furnace in the attic was making some weird sounds. By lunch time the was a burning smell through my vents. At lunch time no heat was blowing through my vents in the house. I turned the a/c on and still nothing. My unit outside is working fine too. What do you think it could be?

Furnace/blower. [ 6 Answers ]

Been searching but so far I haven't found any information that really helps me. I've lived in this house for about a year and a half now, it has the original furance in it(house was built in the 70's I blelieve). Last year the furnace worked fine, and had worked fine so far this year. I live in...

View more questions Search