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Question:

Does anyone know what calculations to use to know what pipe size header to run to two boilers and a water htr?

New school, two boilers and 40 gallon water heater. Engineer says 3 header then 2 to boilers, I want to run 2 header?Anyone know where I can calculate this?

Answer:

Get some GOOD duct tape, not the cheap stuff. Repair the split , but if you want an exceptional job and one the cat won't destroy again wrap the entire duct with several layers of the tape.
Good Day Is the hose metal or plastic.? By our code metal is the proper one to use. So if yours is plastic get the metal and replace it. Get the best metal hose. There's one that's hard to put on and cut to length.
If it's a flexible hose, there should be a band clamp around it, just un-loosen the screw, and re place hose. What about building a three sided box to put over the hose.
Red. Speaking of the fire hydrant, the ballerina rose en pointe and extended one leg behind her, like a dog at a fire hydrant
If your vent was installed on your electric dryer correctly should be a metal band clamp that afiixes the hose to the vent pipe that leads to the outside. Generally they can be loosened with a screwdriver. The hose should be able to be slid down further on the the vent pipe move the clamp back on the undisturbed portion of the hose (just in back of the slit) and retighten the clamp. If the hose is not round anymore, you're far better off buying a new hose and follow the instruction on the package. Go to the hardware store and you'll be able to buy as little or as much as you need. From buying indivdual parts to complete kits. One thing before you go though. Measure the diameter of the pipe that is required for your dryer. The size can vary. There's nothing worse than getting to the store only to discover that you don't have all the information you need to make the right purchase. The problem with trying to repair the old hose would be if its not round. When repairing it you have to make sure it gets round. When the hose is not round it confines the air flow. You may not notice much of a difference but the heat element in the dryer does. Being confined, makes the element overheat. which in turn can reduce the life of the dryer or even cause a fire. However, if you are intent on fixing the old hose I would try getting a jar the same size as the inside diameter of the hose and run the tapered end of the jar through the hose first but of course the hose has to be completely removed from the dryer. Because the material used in these hoses are very thin you must be extremely careful not to tear it. You may think this is just a lot of hot air but wait til you get it fixedNow that's hot air!

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