05/27/2026
Buying the wrong BTU size is the #1 HVAC mistake — and it costs you every month on your electric bill.
Too small = your system never rests. Too large = it can’t control humidity and short-cycles constantly.
The rule of thumb: ~20 BTU per sq ft (standard 8ft ceiling). Adjust for heavy sun exposure, multiple occupants, or kitchens.
At Gonichea we’ve been helping homeowners get this right for over 9 years, across 10+ locations nationwide. Not sure what size you need? DM us or visit gonichea.com — we’ll help you figure it out.