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.
Yearly median tax in Prince William County. The median property tax in Prince William County, Virginia is $3,402 per year for a home worth the median value of $377,700. Prince William County collects, on average, 0.9% of a property's assessed fair market value as property tax.