American Society of Heating and Ventilating Engineers Guide, 1935 V and angularity of the blades.

0/ and 1935American Society Heating Ventilating.

American Society of Heating and Ventilating Engineers Guide, 1935 3,: Direct impingement of too intense lpcal heat upon-any part of the boiler surfa as with oil burners, should be avoided by protecting the surface with firebrick or oth*' refractory material.

* American Society of Heating and Ventilating Engineers Guide, 1935 ,, Split System: A system in which the heating and ventilating -are accomplished by means of radiators or convectors supplemented by mechanical circulation of air (heated or unheated) from a central point.

/ American Society of Heating and Ventilating Engineers Guide, 1935 DAVENPORT, R.

American Society of Heating and Ventilating Engineers Guide, 1935 LYLE, J.

American Society of Heating and Ventilating Engineers Guide, 1936 stallation, and varies. widely with changes in furnace conditions.

Diam eter of ' Branch Pipe F ig. 5.

American Society of Heating and Ventilating Engineers Guide, 1936 oil, so the amount of displacement of the liquid indicates the pressure being exerted on the instrument.

American Society of Heating and Ventilating Engineers Guide, 1937 F is similar to D but is for dry air, devoid of all moisture or water vapor.

American Society of Heating and Ventilating Engineers Guide, 1937 combustion down below their dew point, which is ordinarily in the neighborhood of 130 F.

American.

r American Society of Heating and Ventilating Engineers Guide, 1937 similar in appearance to the ordinary steam or hot water radiator con nected to a basement boiler.

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T able 12.