How much can I down fire a Weil McLain SGO-4 oil fired steamer?

V8toilet

We have an SGO-4 boiler that came with the house we bought and its too big for the radiation in that house. The house has 362 sq ft of radiation in it and a Weil McLain SGO-4 boiler supplies 450 sq ft of steam. Buying a new boiler is not an option this year (an SGO-3 would be perfect).



my options are add more radiation to some of the rooms that don't have any like the half bath and laundry and maybe basement and also down fire the boiler.  The question is how much can we safely down fire this boiler without causing more problems.



We will have a licensed oil man down fire it for us its just that I like to have as much expert information as I can get.  





Thanks in advance.