second battle of bull run importance

One of the most common problems with hvac equipment is poor ventilation. This problem makes your hvac equipment work like inefficient outdated models which can waste plenty of your money. The two most common reasons behind poor venting: inadequate duct sizing as well as a dirty return air filter. Tucked away at the bottom of the Theme menu are Basic and High Contrast Themes, these are ideal for those who have difficulty reading against some of the colour schemes or cannot see icons against a busy display. They are also useful if your machine is low on system resources or has an older video card.