Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.

If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Need to contact us? Visit

National boiler info

I am replacing a No 1 Series Heat Extractor, oil-fired boiler made by National Radiator Company. It doesn't have BTU input or output ratings, only "sq. ft. water" ratings. Do these convert into BTU/hr?


Sign In or Register to comment.


It looks like you're new here. If you want to get involved, click one of these buttons!