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re: Any HVAC Professionals?
Posted on 5/8/19 at 9:18 am to CrawDude
Posted on 5/8/19 at 9:18 am to CrawDude
That is a good point about possible oversizing. That would definitely contribute to this problem. I didn't think much about it because 2.5 ton in Austin "seems" like a relatively small unit given the hot climate.
Posted on 5/8/19 at 9:49 am to notsince98
I’m going to have to replace my 14 year HVAC system in the next year or 2 so I’ve been “researching” this stuff to death. On face value doesn’t seem a 2.5 ton unit would be oversized for a 1,500 ft2 house in Austin. Installers use to use as a rule of thumb 1 ton per 500 ft2 of living area, and apparently many still do, but in today’s construction of tight houses, using spray foam insulation, etc. I understand 1 ton per 800-1,000 ft2 is not uncommon in a very tight, energy efficient home. The manual J load calculation provides the builder/HVAC installer with sizing information they should be using.
As an aside, I’ve seen multiple post from Austin homeowners on the HVAC-TALK forum. Seems like they have worst heat and humidity problems than we do in southern Louisiana.
Anyway, I know it’s not a funny issue for the OP, hope his problem is an easy fix.
As an aside, I’ve seen multiple post from Austin homeowners on the HVAC-TALK forum. Seems like they have worst heat and humidity problems than we do in southern Louisiana.
Anyway, I know it’s not a funny issue for the OP, hope his problem is an easy fix.
This post was edited on 5/8/19 at 9:56 am
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