68 



The Weekly Florists' Review* 



November 20, 1908. 



DOfirOU KNOW ABOUT THK 



Martio Rocking Grate 



IT SAVES COAL 



MARTIN GRATE CO. 



283 Dearborn St. 

 CHICAGO 



Mention The Review when you write. 



fireenhoose Deatiog. 



BEDDING STOCK AND TOMATOES. 



I wish to heat a greenhouse 17x36, 

 three and one-half feet to the eaves !ind 

 eight and one-half feet to the ridge, with 

 glass in one end only. I wish to grow 

 geraniums and other bedding plants, also 

 tomato jilants. What temperature would 

 be required? The outside temperature 

 in this part of New York state occasion- 

 ally goes to 20 degrees below zero. Us- 

 ing cither 2-incli or 1%-inch returns, how 

 many returns would be needed, and what 

 number and size of flows! 



The bottom of the boiler pit is not 

 more than two feet below the level of 

 the greenhouse floor and I cannot con- 

 veniently elevate the expansion tank more 

 than three or four feet above the system. 

 Would the Honeywell heat generator iielp 

 me out, and, in case I used one, what 

 piping system would you recommend? 

 Does hot water under pressure require 

 more constant firing than the open sys- 

 tem? A. B. R. 



I judge that a good plan to follow in 

 this case will be to carry a 2-inch flow 

 from the boiler under the ridge to the 

 far end of the house, and return by the 

 use of twelve IMi-inch pipes arranged 

 under the benches. The expansion tank 

 should be connected with the main re- 

 turn near the boiler, by, say a %-inch 

 pipe, and the tank itself should be placed 

 at least six to ten feet above the highest 

 point in the flow pipe. Place it on a 

 trestle on top of the roof if necessary, 

 and house it in a cupola. You will find 

 this arrangement more efficient than the 

 open system, and no more exacting in 

 regard to attention. L. C. C. 



ONE FLOW SUFFICIENT. 



I am going to build a greenhouse 

 16x30 feet, with two feet of glass in 

 the side walls and the lower three feet 

 double boarded, with paper between. The 

 house will run north and south. The 

 south end will be glass and the north 

 end will connect to the boiler house and 

 potting shed. There will be a raised 

 bench six feet wide and twenty feet long 

 in the center of the house, with a 2-foot 

 walk all around it, and there will bo a 

 3-foot raised bed around the sides and 

 ends, with the exception of about three 

 feet in the center of each end, which will 

 be used for entrances. The house is to 

 be heated to 45 or 50 degrees in zero 

 weather, in this Ohio climate. 



I intend to use a round Burnham or a 

 Wilks hot water boiler, which will be 

 placed in the northeast corner of the 

 shed. Please state what size of boiler 

 I would need. I intend to use an open 

 tank system. The tank will not be over 

 three feet above the main flow, which 

 will be the highest pipe, and the boiler 

 pit will not be over three feet below 

 the ground level. 



Now, I intend to run a 3-inch pipe 

 straight up from the boiler to about the 

 same height as the purlins and then run 



STANDARD 



Thermostat 



STYLE 1 



Diameter, inchea 



PRICE, $6.00 EACH 



Arranged with binding: posts to 

 be connected with wires, so as to 

 ring: a bell. Can be set at any 

 two points on entire scale. Espec- 

 ially adapted for Greenhouses. 



Menasha. Wis., Nov. 15, '08. 

 The Parker tAig. Co., Boston, Mass. 



Gentlemen : — Thermostat arrived 

 and works to entire satisfaction. You 

 are certainly to be cimgratuUted on 

 furoishingr the trade with such a valu- 

 able and at the same time so cheap a 

 'watchman" for the greenhouse dur- 

 ing day and night time. A person 

 can retire without worry; in case of 

 any emergency the Thermostat will 

 do its duty and prevent great pecun 

 iary loss. I do not see how any intel- 

 ligent greenhouse owner can get 

 along without it. Yours very truly, 

 Jos. B. Fioehlich. 



Parker Mfg. Co. 



Clifton & Shirley Sts., 

 BOSTON, MASS. 



Mention The Review when you write. 



The Prize Beauties at Mm Siiow 



Were Grown by a User of 



The Morehead Return Steam Trap 



Write us tor information on the best 

 way of pecuring Even Temperature in 

 Steam Heated Greenhouses. 



Morehead Mfg. Co. 



1043 Grand River Ave. 



DETROIT, MICH. 



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..The Kroeschell Boiler 



Is the only perfect 



Hot Water Boiler 



mad« in 16 Blies, heatingr ttom. 

 the smallest g-reenhonae np to 

 60,000 scinare feet of fflass to 

 60 deg-rees at 16 decrrees be- 

 low zero. 



PBZCSS AVD CATAIiOaUB 

 on application. 



Kroeschell Bros. Co* 



61 EBIE ST. CKICAOO 



a .']-ineh jiipe across the end of tlie lioiise 

 in the j)ottin{r shed, with about one inch 

 of rise. Then from this main flow I 

 will rim two 2-inch flow pipes on the 

 purlin supports close to the roof, to the 

 south end, with about two inches of fall. 

 The purlin supports are three feet on 

 each side of the ridge, or along the edge 

 of the center bench. The supply pipes 

 will drop down to the bottom of the 

 end benches and connect with two hori- 

 zontal coils, one to each main. Each coil 



will contain four 2-inch or five l^^-inch 

 returns, running under the end and side 

 benches, with about three inches of fall 

 to the boiler shed end, where they will 

 connect to a 3-inch main return to the 

 boiler, with about two inches of fall, and 

 then drop straight down to the bottom 

 of the boiler. W. Z. 



A boiler rated to carry 250 feet of 

 radiation should be ample for this house. 

 Unless you have some reason for using 



