When designing an HVAC system, remember that... When you design an HVAC system, remember that: 1  All AHU rooms must have a floor drain, as condensation from the air will collect in the unit.  One should provide fresh air to every AHU.
The sales tax in Richmond located in Fort Bend is 8.25% which is above the Texas average of 7.25%. All Fort Bend Sales Tax âº.
Richmond County, Virginia (VA) County population in 2014: 8,902 (all rural); it was 8,809 in 2000. County owner-occupied with a mortgage or a loan houses and condos in 2010: 1,343. County owner-occupied free and clear houses and condos in 2010: 1,033. County owner-occupied houses and condos in 2000: 2,268.