I've received news that I'll need to get a new boiler. My wife and I want to take this opportunity to switch to natural gas from oil. I'm a technical guy, but I'm having trouble deciphering the power output of my current boiler to size a replacement.
I'm looking for a useful calculator to convert from steam volume output, to BTUs. This is merely as a budgetary exercise for information when a contractor comes to provide an estimate.
Any recommendations?