+ Worker productivity – Hidden HVAC Cost (rent + vacancy v. initial cost + energy saving)
“Many types of equipment and systems are available in the HVAC field, and with few exceptions, the requirements of any commercial building can potentially be met by several of these. All types of equipment purport to achieve predetermined results; however, as pointed out in an old ASHRAE handbook, not all claims have been matched by actual performance, nor have users always received what they thought they were getting. In many cases, the main objective – improvement of tenant (user/employee) productivity – is forgotten in an attempt to gain construction or operating cost savings.”