If all the ductwork must be replaced or added inside intact walls, it can cost $2,700-$12,000 or more to install gas central heating with a standard-efficiency gas furnace and $3,500-$22,000 or more with a high-efficiency unit.
I want to make a different-sized blanket! How much wool do I need? In my experience, you get about 600 square inches per pound of wool. Why do I have to felt the wool? I thought superwash wool doesnât felt!
The âscratchinessâ of wool all depends on its âmicronâ count â how fine the wool fibre is. The lower the number the finer the wool. Superfine Merino wool is the softest and should be between 16-18.5 micron. Anything about 19 micron some people will find that it will itch, depending on the personâs skin sensitivity.