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1953-54 Theatre Catalog, 11th Edition, Page 179 (145)

1953-54 Theatre Catalog, 11th Edition
1953-54 Theatre Catalog
1953-54 Theatre Catalog, 11th Edition, Page 179
Page 179

1953-54 Theatre Catalog, 11th Edition, Page 179

idewalk Housekeeping

Snow Melting System, Similar to Radiant Heating, Will Clear Pavements with the Flick of a Switch

Letls suppose your theatre has a sidewalk in front of it that measures 20 feet from wall to curb and is 50 feet long.

Then letis suppose you have a moderately heavy snowstorm, with an accumulated fall of two inches.

What if someone told you you could have the snow removed for 23 cents? Not only that, but it would be removed as fast it fell and there would be no snow shovels or chemicals to inCUIlVellir ence patrons and passersby?

These figures are based on statistics recently published by A. M. Byers Company, Pittsburgh, on the subject of snow melting systems. According to the statistics, the most accurate information shows an operating cost of 11.5 cents per thousand square feet per inch of snow melted.

What is a snow melting system? Simply stated, its a means of heating your sidewalk or other paved surface so that it will melt snow or ice. Technically speaking, this method of raising temperature is not radiant heating, although installation techniques are similar.

How the System Works

Hereis how it works. Wrought iron pipes, either in sinuous coils or in grids, are laid over a fill of crushed stone, washed gravel, or other non-acid-producing material. Since such a fill is necessary in the construction of any paved surface, there is no extra cost involved

A SNOW MELTING SYSTEM that spanned the sidewalks in front of two at his theatres in Barnesville, 0.. was installed by Edward Modie. The first step was to rip up the old sidewalk and install wrought iron heating pipes. as





here. The pipes may be fabricated into coils or grids in the heating contractorls shop or at the site of the job.

The pipe is supported so that it is the proper distance above the fill. Then, after it has been tested by applying hydraulic pressure, the piping is completely embedded in concrete, asphalt, or whatever other material is to be used.

When the first snow comes, all it

BRIEF: Cleaner theatre interiors, conrenience to patrons, and insurance against costly damage suits are the dividends resulting when pavements fronting theatres are dry and free of ice and snow during inclement weather . . . The snow melting system is an e,0'icient and economical means of keeping pavements clear . . . Wrought iron. pipes are embedded in the concrete . . . a solution of hot water and antifreeze is circulated through the pipes . . . and sidewalk temperature goes well above freezing almost immediately.

There are several methods of circulating the heating solution and putting the system into operation . . . Cost of installation found to range from $1.00 to $1.80 per square foot . . . The snow melting system has nmny advantages . . - and is gaining increased acceptance.

takes is a fiick of a switch to set your snow melting system in operation. A solution of hot water and antifreeze is circulated through the pipes, and the temperature of your sidewalk goes well above the freezing point in almost no time, making it impossible for snow to accumulate or ice to form.

The water may be heated in a boiler by oil, gas, coal or any other conventional fuel, or in a converter by steam or hot water. Since most space heating installations are designed to provide sufficient warmth even at extremely low temperatures, there is usually considerable excess capacity around 26 degrees R, which is the temperature at which most snow falls. For example, if your present steam or hot water system is designed to operate at full capacity at Zero degrees F., it will have a third of its capacity available for snow melting when the temperature is around the point at which snow usually fallshthat is, the mid-twenties.

In the same way, the excess capacity of a low-pressure steam or hot water boiler can be put to use by the insertion of a coil of the proper size in the water chamber or by the addition of a convertor. Where the capacity is not sufficient, a second source of heat may be installed to help carry peak melting loads. Some installations use the excess capacity of their space heaters to warm up the system when the temperature

shown at left. Alter the pipes had been connected to an automatic gas heater and were tested under pressure, the cement was poured, as shown at right. The effective system has made a great difference in interior cleaning costs.

1953-54 Theatre Catalog, 11th Edition, Page 179