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Greenhouse Heaters

By Far The Greatest Greenhouse Unit Heaters On The Market - No Electricity Required

Southern Burner Company's unit heaters are exactly what the name implies... individual units designed to be used singly or in groups to heat a unit of space to meet individual greenhouse requirements. Southern Burner heaters circulate warm air over the greenhouse somewhat like the heat rays from sunshine, from the floor up. They do not radiate heat because radiated heat goes directly to the top of the glass in the greenhouse and is lost.  With Southern Burner Unit Heaters, the temperature at the top of the greenhouse can be held within 5 to 7 degrees of the floor temperature.

Southern Burner heaters have been in use in greenhouses all over the United States since 1932. In thousands of applications, this method of inexpensive heating has helped make if possible for the average person to have and enjoy a 'backyard' greenhouse, and at the same time make it possible for the large greenhouse operators to expand their glass area to the maximum without the expense of costly heating systems.

Southern Burner heaters will heat the same area as other systems on as little as half the fuel cost.
Convenient... Economical... Space-saving... and most important, plants an flowers grown in greenhouses equipped with Southern Burner heaters have always been top quality.

sb-a1-vented.jpg                          sb-c1-nonvent.jpg

                          Model A1 Vented                                                 Model C1 Non-Vented

The Model A-1 Unit Heater is an enclosed flame heater that requires venting to the outside of the greenhouse. It also requires a fresh or combustible air intake from the outside of the greenhouse.

The A-1 is square in design - 16.25 inches wide, 17.5 inches deep and 25 inches tall, constructed of non-rusting mill polished aluminum outer shell, supporting a 24 gauge aluminized steel firebox with vertical flues for maximum air circulation with a stainless steel burner enclosed rated at 25,000 B.T.U. This heater must be vented with a 3 inch vent pipe for proper draft.
A1 Vented Heater
Vent Pipe, Flashing And Rain Cap Are Not Included.
In areas where there is heavy snowfall, it is necessary to arrange to keep the ends of the air intake pipe open. This can be accomplished by tilting something over the outside opening while the snow is falling.

A 2" to 3" PVC air intake pipe should be installed as the figure shows. The outside elbow should be turn down to keep out water and screened to keep out rodents. Intake pipe can be offset to one side. It does not have to be in center of heater. The pipe extending outside must be no more than 12" vertically from inside floor grade, and should stop about three inches from the heater, and about four inches up from the floor.

heater spacing
Heaters should be placed alternately as shown for maximum circulation of warm air.
The Model C-1 Unit Heater is an open flame heater that does not need to be vented. Although it does require a fresh or combustible air intake form the outside of the greenhouse.

The C-1 is round in design - 12.5 inches in diameter and 22 inches tall, constructed of non-rusting mill polished aluminum shell supporting a stainless steel burner rated at 20,000 B.T.U.
C1 Non-Vented Heater In areas where there is heavy snowfall, it is necessary to arrange to keep the ends of the air intake pipe open. This can be accomplished by tilting something over the outside opening while the snow is falling.

A 2" to 3" PVC air intake pipe should be installed as the figure shows. The outside elbow should be turn down to keep out water and screened to keep out rodents. Intake pipe can be offset to one side. It does not have to be in center of heater. The pipe extending outside must be no more than 12" from inside floor grade, and should stop about three inches from the heater, and about four inches up from the floor.
Single Stage Thermostat
Southern Burner heaters are equipped with millivolt controls and wall mounted thermostat that require no electricity for operation. Two styles are available: The first being a Single Stage Thermostat that has a temperature range of 35 to 75 degrees. When you select a temperature setting the heater will cycle on and off at this setting. Regardless of the time of day or night.
Set Back Thermostat
The Second Style is a Day and Night Set-Back Thermostat. This gives you the capability of two separate temperatures, one for day and one for night. The thermostat has an adjustable clock that you can choose from 15 minute intervals to set the temperature change from day to night settings. The clock is powered by an "AA" Alkaline battery still giving you the convenience of no electricity. Temperature range is from 45 to 90 degrees. Mounting of the thermostat can be up to 25 feet from the heater and should be shielded form direct sunlight or water.
Safety
All controls have a 100% safety cut-off feature. If the pilot flame should go out for any reason, the millivolt control would shut off all gas to the heater. Pilot flame would have to be re-established before heater would operate.
Natural and L.P. Gas
Southern Burner heaters are designed to operate under the side benches, installed flush with the front edge of the growing bench or at the end of the isle. Heaters are available for natural or L.P. gas. Heaters on L.P. gas must have a regulator on L.P. tank.
Heating Capacity
In Northern states, it is suggested that one unit be placed for every 150 to 175 square feet of floor space in a conventional greenhouse. In Central states, place on unit heater to every 200 square feet of floor space. In the Southern states, we allow as much as 225 square feet to one unit.
Proper Ventilation
Do not over look the necessity of providing a way for fresh air to enter the greenhouse. This is a 'must' and should not be eliminated. Illustrations show the proper way to install the air intake pipe for the model (C-1) and the model (A-1). A slight top ventilation is also necessary in the greenhouse to provide for circulation and exhaust. In case of heavy snows, take care not to let the vent pipe get buried as the heaters as the heaters need oxygen to burn properly.
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