One of my rental unit has a very small Repco steam boiler. The burner has been cracked and I am thinking to replace it. But I can't find any tag on the boiler with size and even model number. I could not find Repco on the web either! Is this company still exist? The space I need to heat is about 500 Sq Ft. Anybody out there can help me on Repco or sizing the replacement? Thanks in advance.