Does anybody know what Burnham's RSAH vs RSA really is

russiand

I know that this is not the most efficient boiler out there but I am trying to figure out what is the optional high efficiency kit for the Burnham RSA actually consists of. I can't find any information at all on this kit or product but apperently it does or  did exist. Was RSAH ever sold as a separate product or was it always a kit that turned an RSA into RSAH? Many thanks for any response on this.

Paul Fredricks_3

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I get the feeling the the RSAH just came with a smaller nozzle, hence lower stack temp and higher AFUE.

russiand

As simple as that?

Huh, they called it a "kit" when all it was is a size smaller nozzle? Cool, that makes a lot of sense, thank you!