The Heating and Ventilating Magazine, Tom 21

air valve American amount apparatus Association automatic AUTOVENT blower boiler building burning chart Chicago Clarage coal coil combustion committee Company condensation Condensation Pump connection construction Contractors cost damper District Heating draft dry-bulb temperature ducts effective temperature efficiency electric equipment floor flow friction-head fuel fuel-oil furnace gauge heat loss heater Heating and Ventilating heating engineers heating plant heating system hot water humidity increase industry inlet installed insulation Johns-Manville Laboratory manufacturers ment meter method motor Oil Burner operation practice present pressure pump radiator radiator traps regulator Research riser sections Society of Heating square foot standard steam heating supply tank temperature tests thermostat tion trap tube unit vacuum vapor velocity vent Ventilating Engineers VENTILATING MAGAZINE Vernon Hill wall warm-air water heating weather wet-bulb temperature York York City