The heating, ventilating and air conditioning (HVAC) systems are a vital part of every home. These mechanical systems help control the indoor conditions you need for comfort, health and safety. How these mechanical systems interact with other appliances is critical in keeping your home's indoor environment healthy and safe.

This month the cost arid research departments of Mott Green Wdll and Davis Langdon & Everest examine the costs and specification of chilled ceilings and beams in collaboration with specialists Trox and Halton.