National Geographic : 1929 Oct
Here is a sim ple, Balsam-Wool can easily H ere is a simple, inex- be carrid u ay opening that will admit the body of a workman. pensive way to modernize Strips of Balsam-Woo the basement or garage can be carried to the your heating equipment abgle THICK blanket of soft flexible Balsam S Wool in the walls and roof to save heat makes anyheating equipment modern. In houses built before the days of insulation, heating equipment can be modernized with a Balsam-Wool blanket in the attic. Then the heating plant doesn't have to heat all outdoors. The woolly blanket of Balsam-Wool keeps the heat insidewhere it belongs and soon pays for itself in fuel saving. And in summer it keeps out the sti fling heat, making upstairs rooms comfort able on hottest summer days and nights. Balsam-Wool can be easily and quickly installed in any new house and in the attic of any house already built that has an opening to admit a workman. Balsam Wool is flexible and tucks in as only a flexible material can. A full inchthickness tucked between rafters or attic floor joists - around windows and doors--really keeps the heat in and the cold out. It is true insulation. A necessary part of every efficient heating equipment. Learn more about this heat saver. Use the coupon to send today for a free sam ple and booklet. WOOD CONVERSION COMPANY CLOQUET, MINNESOTA Makers of Balsam-Wool,the Flexible Insulating Blanket. Also makers of Nu-Wood, the All-Wood Insulating Wall Boardand Lath Sales Offices in Principal Cities Balsam-Wool is a guaran teed Weyerhaeuser prod uct - a blanket of fluffy wood fibre that looks and acts like sheep's wool. It is TRUE insulation-keeping the house warm in winter and cool in summer - be cause it is FLEXIBLE-THICK EFFICIENT WINDPROOF WATERPROOF FIRE RESISTANT VERMIN PROOF LIGHT WEIGHT PERMANENT --- ~1 1~ ~---- -------- -- -- -- -- WOOD CONVERSION COMPANY, Dept. 85, Cloquet, Minn. M-14 -B Gentlemen: Please send free ample of Balsam-Wool and booklet, House Comfort that Pays for Itself." I am interested in insulation for [ ]A new house. [ ]The attic of my present one. Name Address, Ci ty ,State.