Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 24 · column 4 of 6 · from the scan, no model involved

burning fireplaces are not very energy-efficient, since most of the heat goes up the chimney.
And safety is always a concern when you have a fire in your home, Thomas noted.
Owners are forced to pay attention to dwindling flames, stray sparks, and ash accumulation. Drafts are a concern even when the fireplace is not being used.
Maintaining a constant supply of wood can be a hassle, too,
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