Fireplace Heat Extractors, Consisting of 1) an Upright Box-Like AirContainer, Positioned Immediately Behind the Grate of a Domestic Fireplace to Receive Heat from the Fire, 2) Air-Inlet and Air-Outlet Ducts Beneath the Grate, and 3) an Enclosed Electric Fan within the Structure to Draw in Cool Room Air Through the Inlet Duct, and to Force the Warmed Air out into the Room Through the Outlet Duct

'1':6 '2':28 '3':41 'air':30,34,54,64 'air-inlet':29 'air-outlet':33 'aircontain':12 'behind':15 'beneath':37 'box':10 'box-lik':9 'consist':4 'cool':52 'domest':20 'draw':50 'duct':36,58,72 'electr':44 'enclos':43 'extractor':3 'fan':45 'fire':27 'fireplac':1,21 'forc':61 'grate':17,39 'heat':2,24 'immedi':14 'inlet':31,57 'like':11 'outlet':35,71 'posit':13 'receiv':23 'room':53,68 'structur':48 'upright':8 'warm':63 'within':46

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