8 tests have been conducted on heater.fi's availability in the 1 316 days since April 18, 2021. Heater.fi has been operational for a total of 3 times based on total tests, the latest uptime on April 27, 2024, returned a code 200. Of total analyses done, heater.fi was non-functional for 5 checks, representing 62.50%, with the most recent occurrence being on October 19, 2024. It was noted that there were no error statuses received in any of the responses as of November 25, 2024. Heater.fi averaged 1.162 seconds in response time, responding in — seconds on October 19, 2024.