However, the proposed heating, ventilation and air-conditioning system
``is much more costly to purchase and install than the types of equipment that are used in district schools at the present time,'' his report said.
ComfortGuard is fully integrated with the truck heating and air-conditioning systems
to provide a reliable and low-cost power supply.
The research team is able to remotely track vital data in real time, such as temperature, humidity, indoor carbon dioxide concentrations, air velocity, sound levels, and energy use, and they can compare this information to data from portable classrooms with conventional heating, ventilation and air-conditioning systems
Invensys Climate Controls, a world leader in the automation and control of heating, ventilating and air-conditioning systems
, has teamed with HVAC manufacturer Lennox Industries to develop an unprecedented "smart," Web-addressable HVAC control system for the home that improves the efficiency and effectiveness of space heating and air-conditioning appliances.
Modine Manufacturing Company (NASDAQ:MODI) will demonstrate several innovations in heating and air-conditioning systems
for off-road vehicles at Booth no.