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

    Jan 26, 2010, 07:04 PM
    How do I find out how many sq ft my furnace can handle?
    We are adding a 4 season sunroom onto the house. I have a Tempstar furnace and need to know how many square feet it is rated to heat. I can't find a model number on any of my original paper work apart from "N9MP 2075B12A2" which means zip,nada, nothing to me. Help please.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 26, 2010, 07:26 PM
    There is a tag on every furnace required by the federal gov. It states all the info you need to know like btu voltage etc.

    The proper way to find out the BTU's needed for the room and if your unit will do that with the rest of the house along with the new addition is to do a manual J. This is a rather complex program but it is very accurate.

    Now there are other items like Rules of Thumb etc but a sun room tosses many windows/glass areas so the easy calculation never works under these circumstances.

    Here is a short form.

    http://www.mrhvac.com/loadcalcshortform.htm
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!

Removing handle from a Moen single-handle shower [ 5 Answers ]

The shower is dripping and I am trying to get to the stem by removing the handle. I can see a set screw recessed into the bottom of the handle. I have tried an allen wrench but bent it without any success.

How do you change from a 2 handle faucet to a one handle? [ 3 Answers ]

I have a delta bathtub faucet, shower with 2 handles. I'd like to change it to single handle. What is involved in changing it out? I have chrome but want to put in rubbed bronze.

Re-install Moen single handle shower handle [ 12 Answers ]

My Moen shower handle came off. I see there is a set screw at the bottom of it. The handle attaches to a plastic piece; however, you have to pull out the plastic piece from the wall to get the handle to fit over the plastic and to give the set screw something to set into. How do I pull out...

Replacing single handle bathtub handle with 2 handles [ 1 Answers ]

Hi, I am redoing the tile in my bathroom and want to change my single handle hot/cold fixture with a 2 handle fixture... Can I do this myself or do I need a plumber?. My house was built in the 1960's and the faucet seem original.. I do have access from the back and will have access in front once...

View more questions Search