Heritage Christian School (Kelowna)  Heritage Christian School (HCS) is a K–12 private, Christian school in Kelowna, British Columbia, Canada. It is part of the Kelowna Christian Center and was established in 1986. International Christian Online School is a division of the Heritage Christian School. ICOS courses have been designed around Cambridge English standards. A student can access the online classroom at any time and any place through the internet. In the online classroom, students can utilize the multi-media learning tools at their own pace to improve their command of English. The BC Online School is another division of the school.