Category: Culture

GREENHOUSES: Electronic Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Devices include a cool inlet fan, a hot air outlet fan, a fan heater, an overhead misting and watering nozzle system, an external roof-misting system, a silicon diode control and electronic thermom... Read More

GREENHOUSES: Energy Efficient

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Ten points emphasized for the Maryland area: the temperature below the earth frost line is 13 dC; solar energy is always available; a southern exposure is necessary; the sun's rays should strike th... Read More

GREENHOUSES: Floors

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The ideal is a floor dug down to three feet, filled in with a foot of large stones and two feet of pebbles; concrete and dirt floors tend to lower humidity. OIg88Feb-3 Read More

GREENHOUSES: Heat Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Redistribution of the hot air in the apex of the house to the bench level is achieved by using the "Equal Heat" mechanism, for explanation refer to OR84-409 Read More

GREENHOUSES: In Canada

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Problems of light and temparatures as they affect culture and structures in special areas devised to provide optimum conditions, refer to Wll-347 Read More

GREENHOUSES: Indoor Urban Novelty

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Area size 20 by 30 ft. on the 12th floor of a New York City building; painting and sealing the apartment with epoxy paint and plastics, use of fiberglas, fertilizer proportioner, humidifier, four l... Read More

GREENHOUSES: Plastic Linings for Insulation

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Still air is the best insulation, to achieve it use plastic linings of polyethylene about 2in. away from the inside of the roof; it is efficient; plastic bubbles material one inch size between two ... Read More

GREENHOUSES: Pressure-treated Lumber for Construction

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Avoid wood treated with creosote, pentachlorophenol or copper compounds; the non-toxic ones are fluorochrome, arsenate phenol, and chromated zinc chloride. A86-147 Read More

GREENHOUSES: Solar Design Types

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In Texas a 12ft. by 16 ft unit was partly submerged in the ground and is described with illustrations, diagrams, specifications and discussion of preferred ways and means; refer to A83-500 Read More

GREENHOUSES: Solar Lean-to Type

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In Massachusetts, a design with construction details for efficiency in operation; illustrations, plans; refer to A83-1031 Read More