Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
If the emergency heater fails to operate the last hope is to use water as a continual spray over the plants to avoid freezing and to achieve at least survival of the plants; use a follow-up of fung...
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HEATERS: Flue Pipe with Fins
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
Make your own: on a roll of lightweight lawn edging aluminum four inches high use shears to cut slits 5/8 in. apart from the lower edge inward for 3in. along a length necessary to wind it up spiral...
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HEATERS: Gas Space Units
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
A small unit providing 22-to-50,000 BTU in which the pilot light activates a small electrical pile which in turn activates a thermostat called Self Generating, or Capillary Tube, is described, to t...
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HEATERS: Gas or Propane
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
A gas heater if exclusively methane can be used without venting; propane has up to 0.6% ethylene and needs proper venting A81-1093
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HEATERS: Infra-red New Types
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
They are efficient systems that use either natural gas or propane/butane mix to fire burners and a special pipe emits infrared waves which heat the plant benches, the floor, etc,x and not the air; ...
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HEATERS: Kerosene New Types
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
A 9000-BTU-per-hour heater can produce sulfur dioxide levels during overnight use, a principal air pollutant which is "controlled" by the U.S. Environment Protection Agency to prevent injury; venti...
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HEATERS: Quartz Electric Type
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
It is satisfactory for greenhouse use but perhaps is not adequate because it affects plants only in its pathway and costs more. A81-1093
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HEATERS: Unvented
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
A heater using natural gas, no shortage of air and a clean burner is satisfactory. A81-266The flame consumes the oxygen in a tight greenhouse and the flame then does not burn properly and fumes beg...
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HEATERS: Wood-burning Furnaces
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
In Maine with a possible wind-chill factor of minus 80 dF, a furnace of 125,000 BTU, with hot air, taking a 30inch stick of wood, vented to the outside is described; specifications, names of suppli...
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HEATERS: Wood-burning Stove
Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago
It is apt to emit too much ethylene if it is not properly vented; burning wood is one of the worst sources of ethylene; it is now a crime to burn wood for heating purposes in London. A81-1436
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