Light for evening hours : heat and light, part II. (1890)
Detroit Heating & Lighting Co. · Detroit Heating & Lighting Co. · leaf 12
equal to an ordinary city gas burner, averages about halfa cent per hour. Coal gas usually costs from $2 to $5per thousand cubic feet, while the gas manufactured byour machine will not, in most cases, exceed si.no perthousand. Five gallons of gasoline will produce about onethousand cubic feet of… … Residence of JOSEPH H. BERRY, Esq., Grosse Poiqte, Mich,. H ted by No. 9 BOLTON HEATER. As compared with oil lamps, the cost is about the same,for an equal number of lights; but if the estimate is basedon the quantity of light furnished our gas is materiallycheaper. Some of our customers, having…
Lighting · Light fixtures · Electric lighting
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
