GREENHOUSES AND FRAMES 221 



A smaU, round, hot-water boOer is used for heating the coils. The 

 boiler IS arranged with a shaking and dumping grate. When the 

 beatmg apparatus is filled with water and the fire started, the water 

 circulates through the pipes and maintains the reqmred temperature. 

 Ihe entoe heating apparatus is simplicity itself; a child could take 

 care of it. 



When the greenhouse is 18 ft. wide and 50 ft. long, a partition can 

 be placed m the center, making two compartments, and different 



The "King Junior" garden frame made by the King Construction Co., a sort 

 of miniature greenhouse, the top being on hinges. Being glazed on the sides as 

 well as top the plants are afforded every possible bit of sunlight 



temperatures can be maintained in each if desired. The compartment 

 nearest to the boiler is usually heated to a higher temperature. If 

 Roses are to be grown in the warmest compartment, it is customary 

 to place heating pipes under both side and center benches for bottom 

 heat, and to dry out the benches. The heating pipes are so arranged 

 and valved in both compartments that the temperature can be controlled 

 as desired. For heating a greenhouse 18 ft. x 50 ft., a small square 

 sectional water boiler is used. There are no steam gauges or compli- 

 cated fixtures required on a'hot water heating apparatus. 



