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Question:

can i replace a central air unit myself? i have done much plumbing work (sweating pipe)

can i replace a central air unit myself? i have done much plumbing work (sweating pipe)

Answer:

The smoke or heat has to reach the detector, so the further apart the less likelihood of a timely warning, considering that a fire can get going seriously in a minute or so. Heat detectors work by measuring the rate or temperature increase mostly, and a figure like 6 degrees C/minute is appropriate. The actual rate is a lot more near the seat of a fire. Smoke detectors work by the smoke being ionised, so forming an electrical path in some cases, and by interfering with the transmission of light in others. The light type can cover a distance by using a beam transmitted several meters, but this is not always the case.. If you are talking about regulatory requirements you will need to find the regulations for your region. Typically the detector is placed in the middle of smaller rooms, with spacings like 2-4m being likely.
Now a days company's have created a lot of rubber oven safe cookware. It will not melt if you put it in the oven. The reason these rubber cookware have been created was for easy removal. it is flexible so taking your cupcakes out of the pan will be just like popping ice out of its tray. Just twist and they should fall right out. If you still feel unsure you could always put an oven safe pan or tray under it. I hope this helps you a little. Enjoy your cupcakes.
In the US: A DOT approved motorcycle helmet is the ONLY piece of safety equipment required and then only in some states. The only exception is riders under 18. I believe all states require a helmet for riders and passengers under 18. What is necessary, in my opinion, is a full face helmet, gloves, boots, jacket, pants. All motorcycle specific and with armor at the knees, hips, elbows, shoulders and back.

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