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Dec 30th, 2023
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 HVAC Question
#13625422
07/10/20 12:58 AM
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Joined: Jul 2013
Posts: 6,707
Brent S
OP
TFF Celebrity
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OP
TFF Celebrity
Joined: Jul 2013
Posts: 6,707 |
Has anyone replaced an HVAC system themselves? I have a split heat pump system that's 23 years old. It works well but I may have to replace at some point and was wondering the difficulty and cost of DIY vs paying to have it replaced.
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Re: HVAC Question
[Re: Brent S]
#13625430
07/10/20 01:02 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
unless you have a license for the freon and gas hookups NO!
you can't buy freon without the license.
as for the gas, well I will let you guess what could go wrong.
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Re: HVAC Question
[Re: Brent S]
#13625431
07/10/20 01:03 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
same goes for all electric, unless you know what you are doing it is not a diy project.
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Re: HVAC Question
[Re: Brent S]
#13625432
07/10/20 01:03 AM
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Joined: Jul 2013
Posts: 6,707
Brent S
OP
TFF Celebrity
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OP
TFF Celebrity
Joined: Jul 2013
Posts: 6,707 |
It's an electric system. Could you not install it and have a licensed person add the freon?
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Re: HVAC Question
[Re: Brent S]
#13625437
07/10/20 01:04 AM
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Joined: Jul 2013
Posts: 6,707
Brent S
OP
TFF Celebrity
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OP
TFF Celebrity
Joined: Jul 2013
Posts: 6,707 |
Also, isn't it refrigerant?
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Re: HVAC Question
[Re: Brent S]
#13625438
07/10/20 01:05 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
can you braze copper?
are you competent in electrical hookups?
know how to size the cut out at the exterior unit?
unless they have changed how it works you most likely can not even buy the unit, no supplier I have ever dealt with will sell to the general public.
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Re: HVAC Question
[Re: Brent S]
#13625442
07/10/20 01:08 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
Also, isn't it refrigerant? freon is refrigerant, it is supposed to be captured and either returned the the unit or taken and disposed of with special machines (not that everyone does that tho). short answer is, I would never recommend taking on that job unless you are capable and have experience in working around them. do something wrong and house burns down insurance won't cover it either, not worth the risk.
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Re: HVAC Question
[Re: Brent S]
#13625445
07/10/20 01:10 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
not trying to rain on your parade but save you some serious headaches and problems, it will cost double or more to have someone come fix it if not done right.
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Re: HVAC Question
[Re: Brent S]
#13625454
07/10/20 01:15 AM
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Joined: Jul 2013
Posts: 6,707
Brent S
OP
TFF Celebrity
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OP
TFF Celebrity
Joined: Jul 2013
Posts: 6,707 |
Hop, is mowing your own grass safe to do or will I cut my foot off in the blades?
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Re: HVAC Question
[Re: Brent S]
#13625457
07/10/20 01:19 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
Hop, is mowing your own grass safe to do or will I cut my foot off in the blades? after spending 30 yrs. in construction, custom home builder for the last 15 or so of that, I am just telling you the facts. hvac is not a good diy project for multiple reasons. you can get after it all you want but when it comes time to run copper and charge the system you probably should have someone lined up that is willing to put their license on the line to finish it for you because that is what it will take.
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Re: HVAC Question
[Re: Brent S]
#13625458
07/10/20 01:20 AM
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Joined: Mar 2008
Posts: 61,065
LoneStarSon
Private Dancer
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Private Dancer
Joined: Mar 2008
Posts: 61,065 |
Just had our entire outside and inside units replaced today...3.5 ton 16 seer comfortmaker...It was well worth the money to have them do it. I am not inclined to do any type of work with electricity short of changing out a switch or a light fixture...beyond that and someone licensed can do it. The inside unit was 45 years old...outside was 12 years old. It was able to get the house down to 69 degrees in about 3 hours and cycles on and off perfectly even in this heat.
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Re: HVAC Question
[Re: Brent S]
#13625459
07/10/20 01:20 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
Hop, is mowing your own grass safe to do or will I cut my foot off in the blades? not if you reach under it and make sure the blades are turning. 
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Re: HVAC Question
[Re: Brent S]
#13625460
07/10/20 01:21 AM
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Joined: Oct 2006
Posts: 95,692
Bigbob_FTW
Big Sprocket Bob
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Big Sprocket Bob
Joined: Oct 2006
Posts: 95,692 |
I would not, and I consider myself mechanically advanced.
![[Linked Image]](https://texasfishingforum.com/forums/pics/usergals/2017/07/full-20284-169975-biyl8lail.jpg) ![[Linked Image]](https://texasfishingforum.com/forums/pics/usergals/2017/07/full-20284-169974-image_preview.jpg) FJB
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Re: HVAC Question
[Re: LoneStarSon]
#13625461
07/10/20 01:21 AM
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Joined: Sep 2008
Posts: 121,172
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,172 |
Just had our entire outside and inside units replaced today...3.5 ton 16 seer comfortmaker...It was well worth the money to have them do it. I am not inclined to do any type of work with electricity short of changing out a switch or a light fixture...beyond that and someone licensed can do it. The inside unit was 45 years old...outside was 12 years old. It was able to get the house down to 69 degrees in about 3 hours and cycles on and off perfectly even in this heat. just had the last 5 of our 6 units furnaces/air handlers finished today, I know how to do it, I won't do it.
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Re: HVAC Question
[Re: Brent S]
#13625463
07/10/20 01:23 AM
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Joined: Mar 2004
Posts: 388
fergy
Angler
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Angler
Joined: Mar 2004
Posts: 388 |
I have a good friend in the heating A/C business. He is constantly telling me about the calls he gets from people that have unlicensed installers put units brought up from Mexico on their house. Then they expect him to come in & clean up the mess and try to turn it as "warranty" or cut them a low price. It usually doesn't end well for the homeowner.
Guns have only two enemies...Rust and Politicians
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