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notsince98
Missouri Fan
KC, MO
Member since Oct 2012
14467 posts

re: New Construction HVAC
quote:

I have a gas furnace. Is that what you mean? I'm not great with hvac terminology


need the model # for the gas furnace.


lsujro
LSU Fan
north of the wall
Member since Jul 2007
3465 posts

re: New Construction HVAC
I'll have to check this evening. Are there options to add something to make an existing air handler 2 stage?


Chasin The Tiger
LSU Fan
Lake Travis, TX
Member since Sep 2012
427 posts

re: New Construction HVAC
any one have experience with ductless mini splits? Would it be worth doing 2-3 of them for a 1500 sq ft house?


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CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
3212 posts
 Online 

re: New Construction HVAC
quote:

No on the variable speed the ecm will crap the bed it’s 1200.

If I’m not mistaken, as of 2020, maybe 2021, air handler/furnace blower motors must be, by federal regulation, EMC motors. PSC motors are available for repair/replacement, or older HVAC equipment inventory.


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notsince98
Missouri Fan
KC, MO
Member since Oct 2012
14467 posts

re: New Construction HVAC
quote:

I'll have to check this evening. Are there options to add something to make an existing air handler 2 stage?


No. If the air handler or furnace doesn't have 2-stage capability, there is nothing you can do. Many units do have the capability, though.


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Simon Gruber
Houston Astros Fan
Member since Mar 2017
588 posts

re: New Construction HVAC
Are air purifiers legit or a money grab? I see many HVAC companies advertising them for central AC systems.


notsince98
Missouri Fan
KC, MO
Member since Oct 2012
14467 posts

re: New Construction HVAC
quote:

Are air purifiers legit or a money grab? I see many HVAC companies advertising them for central AC systems.


What kind of air purifier? there seem to be many things like UV, Electrostatic, high MERV pleated, etc.

I personally use a MERV 16 rated 5" deep air filter with active carbon layer. It can filter out viruses from the air and the filters last me about 2 years each. It also has a very low pressure drop which is one of the most important aspects of any air filtration/cleaner system for HVAC.


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lsu777
LSU Fan
westlake
Member since Jan 2004
18077 posts
 Online 

re: New Construction HVAC
quote:

Simon Gruber



what kind of insulation are you doing?


Simon Gruber
Houston Astros Fan
Member since Mar 2017
588 posts

re: New Construction HVAC
Probably blown in insulation for the attic. Haven’t picked anything out specific yet. I’m thinking about doing radiant barrier in the attic as well.


lsu777
LSU Fan
westlake
Member since Jan 2004
18077 posts
 Online 

re: New Construction HVAC
do a radiant barrier for sure if you arent doing spray foam.

i would get most effecient hvac you can afford if not doing foam.


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