When Carrier, an American air-conditioning manufacturer, began offering its customers this kind of innovative service in the 1990s, it also established partnerships with other service providers. It then used these alliances to offer consumers lighting upgrades and other home improvements, providing them with the means to be comfortable in their homes without purchasing energy-devouring air-conditioning units.
美國的空調大廠開利公司在 90 年代發展此一創新服務後，甚至開始與其他服務業者結盟，除了提供涼爽外，也提供照明改善、住宅改裝等服務，讓消費者不必依賴高耗能的空調設備，也能獲得舒適感。