wrote in message

Does this sound like the correct size boiler? Thanks.

None of us have a clue what size house and what type of construction or if
you live in North Dakota or South Carolina so no one can say it is right or
wrong. What size do you have now? You probably want to be close to that,
assuming it is heating properly. Finishing the basement with insulation
will have a small affect on what the total needs are. Keep in mind,
smaller is not cheaper to operate.