Showing Posts From
Air conditioner
How Much Does Central Air Installation Cost? (2026)
What it costs to install or replace central air conditioning: price by tonnage and SEER2, the factors that move the total, install vs replacement, and how to estimate your job.
BTU per Square Foot for Air Conditioning: The Chart and the Math
How many BTU per square foot you need for cooling, with a room-size chart, the climate adjustments that change the number, and why 20 BTU/sq ft is only a starting point.
AC Tonnage by Room Size: Sizing Chart and How to Calculate It
How to size AC tonnage by room or house square footage. A square-footage-to-tonnage chart, the 20 BTU per sq ft rule, climate adjustments, and why room-by-room sizing beats rules of thumb.