Most systems in Texas are still sized by rule of thumb. The tools that do it properly are built for the office, take an hour of data entry, and produce a number no homeowner understands. So the shortcuts win.
We've won jobs because of how thoroughly we researched the house: the photos, the measurements, the reasoning behind the equipment we recommended. RhoeFlow turns that into a process any comfort advisor can follow on a site visit, and a report any customer can read.
The name comes from the Greek rhoē, flow: heat flowing through the walls and roof, and air flowing through the ducts. Getting both right is the whole job.