Originally Posted by BaldLoonie
As accurate as a rule of thumb like "btus per sq ft" or sizing based on what's there. Our our competitor who uses some website that determines size based on a satellite photo of the home.
Apart from physically measuring the home, you can alternatively pull the property data using your locality's web-based GIS explorer. The last known size the dwelling can be found there.
Lemme guess,, rheem design star?