Ask Experts Questions for FREE Help !
Ask
    Rufus531's Avatar
    Rufus531 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 18, 2014, 12:00 PM
    Best way to add A/C onto existing gas furnace?
    My house has a 17 yr old natural gas furnace (ducted) but no A/C. If I want to add A/C is more efficient to add it onto the gas system or separately add a ductless heat pump system and just use it for cooling and still use the gas for heating?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Nov 18, 2014, 03:03 PM
    The cost for more than 1 split, ductless systems would cost more than a central unit. You would be disappointed by excessive cooling in 1 room and lack in another. Although it depends on your sun load, insulation, windows, siding, people load etc. 2 tons would probably be adequate. You do not want too much AC as it does not allow enough time to dehumidify. Where is the heater located?
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
    Ultra Member
    		  
    #3

    Nov 18, 2014, 06:35 PM
    Adding A/C to the existing furnace would be the way to go if there is room.
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
    Ultra Member
    		  
    #4

    Nov 18, 2014, 07:14 PM
    Neither. Your 17 year old system is ready for replacement. New units are much more efficient. The cost to install a coil in your system would be considerable and that money would be better spent in a complete new system.
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!

Changing an existing gas & electric furnace to all electric. [ 2 Answers ]

My home is 90% electric, but my furnace is electric and gas, I am curious about how to change to an all electric furnace since my air conditioning and hot water tank are both electric. Will this require me to amp up my electrical panel?

I have a old Empire Gas shop furnace I got it to work but now I need to add a thermo [ 9 Answers ]

I have a old Empire Gas shop furnace I got it to work but now I need to add a thermostat to it.

How do I add my name to an already existing deed? [ 1 Answers ]

How do I get my name added to the deed of a home owned by my fiancé? I am selling my house and the profits from my house will go to offsetting the mortgage. Would we have to close on the house again or can I just add it on? I live in New Jersey.

Add AC to old gas furnace thermostat wiring [ 2 Answers ]

Hi. I am adding AC to an older furnace and I can't figure out how to wire the 24V Thermostat wires. I only see three places to hook wires in, labeled: TH, TH-TR, TR. Each terminal has two places to hook in wires. Right now, it is wired for heat and works perfectly with two wires coming from the...

View more questions Search