Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 641
eatest amount of prime heating surfaces possible. The connection be-tween top and firepot is made same as our water tube section, which is thesimplest, most positive and durable connection known. Correctly Proportioned—Every Rapid Heater is proportionedrelative to its giate surface and also to its… … Fig. R.^PID HOT WATERHEATER
Building materials
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