Chainsaws
On the ranch we have 3 Stihl saws, 2 Husqvarna saws, and a little craftsman. They all get used a lot for firewood cuts, clearcuts and brush clearing after the winter season. The Stihl saws give us the least amount of problems and are the most reliable. Stihl makes an awesome saw, hands down the way to go.
Lord have mercy, are you kidding me? Five inches? 
$34 for Top of the Line and get some excerise.

This saw will go thru five inches in less than two minutes....

$34 for Top of the Line and get some excerise.

This saw will go thru five inches in less than two minutes....

Using a hand saw, I figure it would take all day to cut them down and get them into shape for the fireplace. With some horsepower in my hands, though, I would think about an hour, tops.
This is only the first part of the process, too. The landscaped area where those trees are will be deleted and grass will soon be growing there. Then there is another spot in the yard where I'm putting in the vegetable garden. These two trees are blocking the sunlight where the garden will be... but that's a whole other thread.
Then a gas 18"
Then a gas 24"
Last hurricane I used all three.
The chains are the same gas or electric.
I like the electric for pruning branches and under five inch stuff like your facing.
You can set an electric down and it is off, your hands are free to move material around. You can hear yourself think you are aware of your surroundings.
You set a gasser down and it's still running, basically. As stated above it does get the testosterone running and the adrenaline. The roar even while sitting on the ground adds urgency to the situation. I know people who are quite comfortable around chainsaws and some of them have eight fingers.

Since you have no experience with chainsaws, start off with an electric which is more than capable of your task at hand.
There is no sense in having a $400 saw that will never get put thru it's paces.
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Remember Tool Time with Tim Allen...Perhaps He needs to buy the Binford 3400 Nuclear-powered 20 inch chainsaw...anyway, if you have any problems bringing down those trees, call this guy.






