American Society of Heating and Ventilating Engineers Guide, 1924-25 n - i vr rn nmm irt ni ionrlr-N American Society of Heating and Ventilating Engineers Guide, 1924-25 EQUALIZING RISER TEMPERATURE DROPS No matter how carefully riser or circuit sizes may be calculated, the limitations imposed by the necessity of using standard sizes of pipe and fittings will affect the results sought for in a heating system.

Grinnell Company, Incorporated Heating and Piping Systems GRINNELL COMPANY Heating, Industrial and Power Plant Piping, Fittings, Hangers, Valves, Pipe Bending, Welding, Piping Supplies, Etc.

American Society of Heating and Ventilating Engineers Guide, 1925-26 52 F ig . 16.

American Society of Heating and Ventilating Engineers Guide, 1925-26 in the second column, by the proportionate transmission opposite the difference in temperature between the radiator and the room, as given in the fourth column, and the result will be the proportionate amount of radiation required.

American Society of Heating and Ventilating Engineers Guide, 1925-26 Fire tube boilers may be of the direct tube, return tube or a combina tion of direct and return tube type and have any desired ratio between grate and heating surface.

American Society of Heating and Ventilating Engineers Guide, 1925-26 board or floor type with the former location preferred.

American Society of Heating and Ventilating Engineers Guide, 1925-26 through the ash door of the boiler, and its damper can be adjusted to suit conditions.

American Society of Heating and Ventilating EngiKeers Guide, 1926-27 of hot water made is overhead, where it is not required, and in order to heat the floor coils from end to end, and it is impossible to heat them evenly from end to end, a little larger fire must be maintained than would be necessary if the coils were in two rows, i.e., going and coming, flows and returns under the benches. ' With gravity hot water heating, boilers should always be in pits.

American Society of Heating and Ventilating Engineers Guide, 1926-27 Oil Table 82.

.American Society of Heating,and Ventilating Engineers Guide, 1926-27 carload deliveries should be provided for.

Wet Bulb Temperature Mrfe.

American Society of Heating and Ventilating Engineers Guide, 1928 5.

American Society of Heating and Ventilating Engineers Guide, 1928 These appliances should always be vented, both from the standpoint of safety and also on account of the damage that can be done by the water vapor in the products of combustion being condensed within the room.

American Society of Heating and Ventilating Engineers Guide, 1928 TEMPERATURE AND HUMIDITY CONTROL Air washers require method of control of temperature to prevent freez ing by too low temperature and of over-humidification by too high temperatures of the air entering and leaving the washer.

American Society of Heating and Ventilating Engineers Guide, 1928 which reduces to pointing off two places in the CFM and multiplying by the ppm.