A Quick Disclaimer

Don't be a fool! Do not trust your life, home, health, or safety to stuff you find on random web pages. I've tried my best to faithfully reproduce information I"ve found at trusted sources, but I am not a professional programmer with a team of QC experts double and triple-checking everything I've done. I'm a guy hacking around in PHP for fun. So please, do this math yourself and double-check these numbers before you take them to heart."

You probably arrived at this page by linking from my blog post on calculating generator runtime. If not, you probably have no idea what this is. So please read the post.

Calculate Propane Energy Available at Lowest Temperature Expected


Warning: Cannot modify header information - headers already sent by (output started at /home/rhavasy/havasy.net/tools/gen_runtime_calc.php:39) in /home/rhavasy/havasy.net/tools/zebra_forms/Zebra_Form.php on line 3876

Fatal error: The library tried to store the CSRF token in a cookie but was unable to do so because there was output already sent to the browser. You should either start a session prior to instantiating the library (recommended), have no output (including and tags, as well as any whitespace) sent to the browser prior to instantiating the library, or turn output buffering on in php.ini. in /home/rhavasy/havasy.net/tools/zebra_forms/Zebra_Form.php on line 3876