Hello. I want to inform you that there is another interesting feature of the Raypak heater - its ability to record how long the heater has been running and how many times it has been fired. If you read raypak reviews https://raypak.pissedconsumer.com/review.html, you will know that this is the first experience in the industry. It provides valuable feedback for technicians during maintenance or repair. Raypak heaters are also compatible with the most popular and widely used remote control systems on the market.