A type of gas floor furnace, well ...

A type of gas floor furnace, well ...

A type of gas floor furnace, well vented and with the flame not directly open to the house, has been found satisfactory for the small greenhouse.

Humidity must be maintained to offset dryness.

Open gas heaters are a menace in the greenhouse, for if the flame is accidentally put out the fumes will quickly kill the plants.

Electric heaters are too drying and too concentrated for plants near by and do not provide enough warmth for plants some distance away.

More elaborate systems are required for a completely satisfactory solution of the heating problem.

For areas where the temperature does not fall below zero, hot-water systems operated by thermostatically controlled gas are very satisfactory.

Where severe winters prevail, hot-water or steam systems with coal or oil burners will be required.

There are many types from which to choose, but only one can be examined here in any detail.

The simple gravity system has been found very efficient for small greenhouses (nine by twelve feet to twelve by fifteen feet).

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Stay tuned for more orchid-growing advice tomorrow! :)




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