Powr Thermo tai and Radiator \ tl T7777 the additional heat necessary, and under Ithe control of their thermostats will do it automatically. Our system of tem-perature control is applied with equalfacility to steam or hot water heat, givingeither the positive or graduated controlof valves as may be… … : Typical application of Powers Regulation to Directwith fan ventilation. School Hounc 1 Steam Heating Plant ypo JOHNSON TEMPERATURE REGULATING CO. OF CANADA, LTD. 2 TEMPERATURE REGULATI JOHNSON TEMPERATURE REGULATING CO. OF CANADA. LTD. CALGARY. ALTA.. 605 Second Street West. TORONTO, ONT.. 118…
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