62 



The Weekly Florists^ Review* 



August 6, 1008. 



We 'want to send you the names of the 

 nearest florists who are using^ the Martin 



ROCKING GRATE 



Drop UB a postal and we will send you the ' 

 names of growers you know are good busi- ' 

 ness men. 



See it MTorking: and you will order the Martin Rockinc Orate for 

 tbe new boilers to be put in this season. Write for catalogue and 

 prices. 



IT SAVES COAL 



Martin Grate Ca 



283 Dearborn, St., CHICAQO. 



Send order now— we will make up the crates and bold until 



you say ship 



Mention The Review when you write. 



2-inch return to the boiler. I want to 

 •j'ijse no pipe larger than 2-inch, as I can 

 'do all my own pipe-fitting up to that size. 



For the house already in operation, 

 and a breeder house that stands on part 

 of the ground it is proposed to occupy, 

 the expansion tank is at the highest point 

 in the system, the place on the main flow 

 farthest from the boiler. Sometimes the 

 water boils before all the pipes get hot. 

 I had intended to put the tank in the 

 same position in the completed range; 

 that is, at the highest end of No. 1, but 

 can connect to the return near the boiler, 

 if that will stop the trouble, putting the 

 expansion tank about fifteen feet above 

 the boiler and about two feet above the 

 highest point in the system. I can 

 connect all the highest points in my pro- 

 posed system, having one air valve do the 

 work. Will not this plan give as good 

 results, using 2-inch separate flows, as 

 using one single large flow and return? 



The new bouses will be built with wood 

 posts and board walls. They will be 

 three-quarter-span and abouli ten feet 

 high to the ridges, with no glass in the 

 sides. The glass will be 16x24. Would 

 you butt or lap the glass? What is the 

 best material for glazing, putty or Mas- 

 tica? Would you use brads or staples? 

 What size pipe would you use for sup- 

 ports for the ridge and purlins? Is there 

 any advantage in setting the wood posts 

 or iron-pipe posts in grout? Which are 

 best, locust j)osts, which are to be had 

 here for about 40 cents each, or cypress 

 posts, for which I must send away? Will 

 ventilators four panes wide be all right 

 if set with two rows of glass between 

 each sash? E. B. 



The criticism I would make on your 

 plan is that you are beginning to build 

 at the wrong end. Begin nearest the 

 boiler. If you can first build and use 

 house No. 4 in place of No. 1, provided 

 the boiler is to be placed as suggested, 

 you will save the cost of heating a use- 

 less flow pipe as long as from house No. 

 4 to house No, 1. Heat i* expensive in 

 most places. 



If you carry a 4-inch pipe from the 

 boiler to the first take-off, . reduce there 

 to 3-inch and carry to the third take-off; 

 from that point on 2-inch will answer, 

 and the loss of heat from a single pipe 

 of this character will be less than from 

 four 2-inch pipes, each leading to its re- 

 spective house. If you wish to carry the 

 return from each house independently to 

 the boiler, this can be done, and it is 

 likely that you will find the independent 



IMPBOVKD 8TKKL RKTURN TXIBULAR BOILKR, FOR 8TKAM AND HOT WATKR 



JOHNSTON HEATING CO. - 



1 38 East 31st Street, 



* , Mention The Review when you write. 



NEW YORK 



..The Kroeschell Boiler.. 



Zs til* only p«rf«ot 



Hot Water Boiler 



mad* In IB alzas, heating' ftrom 

 the aiuallaat greenlioua* np to 

 50,000 aqaare feat of glass to 

 60 degxeea at 16 deffreei bo- 

 low sero. 



FXZ0S8 AVD OATAXiOOVa 

 on applioatlon. 



Kroeschell Bros* Co. 



SI BBZB ST. 



OKIOAOO 



Mentiou The Review when you write. 



Pipe Fittings -- Imico Boilers 



FOR GREENHOUSE WORK — 



ILLINOIS MALLEABLE IRON CO. 



580 DIVER8ET BOULEVARD CHICAGO. 



2-inch returns quite as satisfactory as 

 one large one built up as the riser sug- 

 gested. The flow pipes are only objec- 

 tionable because of the loss of heat; in 



many other ways they are more desirable 

 than the throttled flow described. 



If you wish a tight, dry house, use 

 lapped glass. Do not make the lap more 



