diff --git a/src/BuildingCoolingSystem.js b/src/BuildingCoolingSystem.js
index 98b4dd55999585a6ffbf1d8dcdb001bb94892c7f..4bbc7be1fe89b18784a2347e22f978ea21f75fd8 100644
--- a/src/BuildingCoolingSystem.js
+++ b/src/BuildingCoolingSystem.js
@@ -99,6 +99,12 @@ export default class BuildingCoolingSystem extends React.Component {
               <UncontrolledTooltip placement="left" modifiers={{ flip: { behavior: ['left'] }, preventOverflow: {boundariesElement: "viewport"} }} target='VRF'>
                 Variable Refrigerant Flow (VRF) systems are typically all-electric systems that use heat pumps to provide space heating and cooling to building spaces.
               </UncontrolledTooltip>
+              <UncontrolledTooltip placement="left" modifiers={{ flip: { behavior: ['left'] }, preventOverflow: {boundariesElement: "viewport"} }} target='CentralChillerPlant'>
+                Chiller is a central refrigeration machine that generates chilled water to cool and dehumidify air in larger buildings.
+              </UncontrolledTooltip>
+              <UncontrolledTooltip placement="left" modifiers={{ flip: { behavior: ['left'] }, preventOverflow: {boundariesElement: "viewport"} }} target='MiniSplitHeatPump'>
+                Mini-split is an high efficiency, electric heat pump system that provides both space heating and space cooling. It consists of  indoor air handling units (one per room typically) that connect to an outdoor unit.
+              </UncontrolledTooltip>
             </div>
             );
         })