Alpacas are raised for their soft and luxurious fleece (sometimes called fiber). Each shearing produces roughly five to ten pounds of fleece per animal, per year. This fleece, often compared to cashmere, can be turned into a wide array of products from yarn and apparel to tapestries and blankets.
1 gallon of propane is about 90,000 BTU/hour. A 20 lb tank holds a little more than 4 gallons. My patio propane fireplace is 60,000 BTU. At full blast, a 20 lb tank will last about 6-7 hours, which is really close to the calculation. 32 people found this useful.
Lifespan. The average gas furnace will last about 20 years before needing to be replaced. If yours is over 15 years old consider having it replaced earlier than that.he average gas furnace will last about 20 years before needing to be replaced. If yours is over 15 years old consider having it replaced earlier than that.