That’s one project the architect will never forget. The walls had to be rebuilt from the exterior with just sheet rock between the contractor and the hospital patients. We had the contractor remove every brick on the walls, the black soaked gypsum board, as well as the saturated fiberglass. When was the last time you saw an architectural drawing with details on how to seal the vapor barrier at wall/ceiling junctions? Or wall/foundation junctions? Or etc., etc.? I made several trips to Western Iowa where the lack of insulation/vapor barrier details on a hospital building cost $10 million to fix. If the insulation vapor barrier system is inadequate and/or was full of holes, things get very wet and moldy. In the Southern U.S., Gulf Coast, Florida, up the East Coast to Myrtle Beach, the excessive humidity comes from outdoors. This is a frequent problem in health clubs or tennis buildings when somebody forgets to put a heavy-duty polyethylene vapor barrier under the floor. Dirt Floorsĭirt floors in a building act like an infinite humidifier. This is made worse when someone uses a torpedo heater (direct fired) in January and February to heat the building under construction. This is frequently the cause of dripping when the floor has been poured in November and December. Fresh Poured Concreteįor several months after a concrete floor is poured, during the curing process, the concrete gives off water vapor to the building interior. The magic wand approach is taken by some manufacturers of direct-fired heaters. Waving a magic wand over the unit is not going to change this. So depending upon the fuel, burning 1 million BTU/hour in a direct-fired unit puts between 1 and 2 tons of water vapor into the building per 24-hour day. Natural Gas=23.61 cubic feet per pound, hence: 42 pounds per million BTU.Ĭalculating the quantity of water vapor in the exhaust gas for a million BTU burner in 24 hours: Propane=8.45 cubic feet per pound, hence: 48 pounds per million BTU. Propane is heavier than natural gas but has a higher BTU content: Propane produces twice as much water vapor than natural gas on a pound per pound basis. In a 24-hour period that adds up to over a ton of water that a direct-fired unit puts into the building. natural gas burner the combustion process releases approximately 90 pounds of water per hour. When you burn one of these hydrocarbon gases, the fuel chemically combines with the oxygen in the combustion air to form water vapor (H2O). (From the North American Combustion Handbook) Propane Gas (C3H8) when burned produces 4 cubic feet of water vapor for every cubic foot of gas. Natural Gas (Methane CH4) when burned produces 2 cubic feet of water vapor for every cubic foot of gas. These units are great for my consulting business! Where does this ton of water go? It finds all of the vapor barrier facer holes, quickly travels through the fiberglass, and condenses on the steel deck. A one million BTU heater (either propane or natural gas), over a 24-hour period, puts a ton or more (2,000 pounds) of water vapor into the building. If you are looking for a fantastic way to ensure you are functioning together with the most beneficial weapon carrying bag, pick the Uncle Mike's Scope Rifle Cases.A direct-fired heater is a heater where there is no vent or chimney and the products of combustion (carbon dioxide and water vapor) are vented into the occupied space. At, we have made it our main concern to make certain that you depart with the weapon bag that you're in search of, and the Uncle Mike's Scope Rifle Cases is certainly one that we are extremely happy to supply our shoppers. Uncle Mike's has been developing superior quality soft firearm cases for a very long time, and the Uncle Mike's Scope Rifle Cases is the result of their endeavors make sure that you have the perfect travel case for your specific requirements. Crafted utilizing some of the most dependable resources available in the current market, these Rifle Cases through the qualified shooters at Uncle Mike's will present you with numerous years of valuable and efficient use. And thanks to the Uncle Mike's Scope Rifle Cases, access to an effective soft case has never been less complicated. The right bag will make your gun simple to carry and take with you to the range. Transport your firearm in style with the Uncle Mike's Scope Rifle Cases.
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