Step 8:

Moving onto the front door.

Sadly I dont have any pictures of the setup being made as it was raining and I didnt want my camera to get wet. The tarp I had up over the top all the way along helped prevent most of it, but i still got wet!

To make the front door, I clamped a piece of vertical wood to the inner sides of the space where the 4th wall would be, then I pretty much screwed planks onto that from the bottom upwards until I covered the opening. I did this as I was using scrap wood that I already had lying around. Then i put a piece of plywood across the top, attached some hinges at the back and at the front to make a upward folding design. This was all using scrap that I already had, so if your doing something similar and buying the bits, then you may do it differently.

Into the top, I put two bathroom ventilation fans to provide the suction in the theory that heat rises, and creating a positive flow of air, entering in the bottom, and exiting out the top. To put these in, I traced around the top of a bucket that matched the dimensions of the fans perfectly, then cut it out with a jigsaw. Then i cut a hole with a forstner bit next to them big enough to drop the power cords through so they are inside the box and out of the weather.

All the wood was given a layer of paint to help prevent weather and water ingress.
<p>Since the generator is a portable and the fuel take is on top I would think that the tank would restrict upward air flow and cause the heat to flow from the sides. wouldn't it be better to create cross air flow by putting the fans on the sides. one intake and one exhaust. </p>
<p>Possibly yes, though that would make the box more complex by having to fit the fans into the brickwork. It would also allow sound through to the sides. I went with up to redirect it away from the house a little.</p>
<p>that's fuel tank not take.</p>
I bet your generator is using a lot of fuel. The two fans is a great idea but; use one of them to feed clean cool air to the generator, as heat raises it will not need much help to get out. Use a clothe drier duct to get clean air to the carburetor. You do not need to wrap it around the carburetor or make any removal of parts. On the exhaust fan use the same kind of duct tube but this time use an &quot;s&quot; figure to prevent some noise from escaping out the exhaust fan. (By the way i used plastic plumbing {PVC} for mine) Make sure it is placed on the top part, not hanging down or the hot air stays inside.
wow that is amazing could it be made of metal
Definitely! I used brick filed with concrete to try and absorb the sound a bit. A thin later of metal may only amplify the sound. Perhaps a layer of carpet or sound absorption foam thats heat proof. Plastic or wood should work as well, though again, may need something else to help the sound blocking.
oh thanks i meant on the outside to protect the engine
Oh, yep for sure!
Good idea. I will probably make one when things finally dry up.<br> How well does the concrete muffle the noise?
Its not too bad, I havent had a test where Ive had to sleep as yet, but it is a noticeable difference from inside the house. The plastic on top is letting a bit escape though so will have to find something else for that. I knew Id get some out the fans due to their size, but expected less. Im thinking I might whip something up with wood and see how it goes.

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