Heating exchangers: What exactly is it? They must be able to exchange heat for HVAC to be effective. Convection, conduction and convention are necessary. These energy processes must occur in order for HVAC to function. For instance, an example of this could be the sun. Fluids in HVAC systems are water and air. To work, an HVAC system needs to use water or air. The coil or the plate model will be employed when installing an HVAC system. There are two tubes available. It is possible to transfer heat from the heated inner fluid to the outside fluid. Metal plates are held onto the plate and conducted through to the other side. Convection is then achieved by another fluid. The cooling or heating coil is extremely common. Heating steam, air or water may flow both inside and out. Hot energy transfer can be accomplished through the sidewall. The connection is made through pipes. The heat exchangers that are in duct places utilize heat and do not require the use for water. The heat exchanges are typically comprised of thin sheets of metal with air being used in both. ph3t7v6d56.