. Florists' review [microform]. Floriculture. .'I!'^- rr J»VK< ^ •?^?^?j5^;-i&,t'';;,}.'5P.»k;»'""'.^W.• WKB 126 The Florists^ Review August 31, 1922 returns under the center benches, if this is feasible. C. F. R.—Conn. A boiler to Iieat the house described above should have a rating of about 600 square feet of liot water radiation, if soft coal is to be used. Tliis would re- quire a, grate about twenty-four inches in diameter. A slightly smaller boiler niiglit be used with hard coal. The needed radiation would be fur- nished, if, as suggested, a 3-inch tiow })il)e is run on e
. Florists' review [microform]. Floriculture. .'I!'^- rr J»VK< ^ •?^?^?j5^;-i&,t'';;,}.'5P.»k;»'""'.^W.• WKB 126 The Florists^ Review August 31, 1922 returns under the center benches, if this is feasible. C. F. R.—Conn. A boiler to Iieat the house described above should have a rating of about 600 square feet of liot water radiation, if soft coal is to be used. Tliis would re- quire a, grate about twenty-four inches in diameter. A slightly smaller boiler niiglit be used with hard coal. The needed radiation would be fur- nished, if, as suggested, a 3-inch tiow })il)e is run on each side wall, with two 2-inch returns under each of the four benches, but it would be preferable to use three 2-inch flow i)ipes ainl seven 2-inch returns, placing the odd flow pipe under the ridge and distributing tlie returns under the benches. It will be possible to use two 2-inch flow pipes and eight 2-inch returns, pro\ided there is no objection to placing the third flow pipe under the ridge and if, as is prob- ably the case, the lowest part of the returns is considerably ab()^•e the top of the l)oiler. The iMncli pipe may be used for a main flow and return to the Ijoiler. DETERMINING RADIATION. Would a hot water heater with 1(50 square feet of radiation heat a greeii- liouso to (50 degrees in zero weather? The greenhouse in question is 10x42 feet. H. D. P.—Md. If the house is well built and there is IK) glass in the side w;ills, about 1(50 square feet of radi.'ition will lie rc- ((uired for a greenhouse 10x42 feet, to heat it to (50 degrees in zero weatlier. This would be furnislied by one 2''j- inch flow ))il)c and two 2-ineli returns on each side wall. Whether a hot water lH<ater witli 1(50 s()uare feet of radiation will heat a greenhouse, ](hx42 feet, to 60 degrees in zero weather, will depend largely upon the actual cajiacity of the bdiler. Especially when soft coal is to he used, the only safe way to determine the size of boiler required fur a greenh
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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912
