wiring for outdoor boiler

[sublime68charger]

I want to run 10 gauge wire and put it in conduit for when it leaves my garage and is under ground,

Can I run in it in 3/4 plastic conduit?

Breaker Box is on far side of garage from trench just going to run wire up to ceiling across the ceiling down the wall on the inside of garage and then into conduit and out to where the wood boiler setup will be appx 40' outside and 35' inside the garage so that's 75' of wire.

also going to run a 2nd line that will run to where my wood shed will be.

is this doable or would there be a better way?

pic is of the trench going into the garage.

thanks in advance for advice on this

 

[sberry]

For common loads 12 is a lot more practical unless you have free wire or there is a real compelling reason to run 10.

 

[sublime68charger]

I just would rather have the extra capacity of what 10 would give me. I know its a pain to work with.

but If I run 10 now and then need to branch off for other things its a lot easier to due than to re dig a trench from the garage.

Just thinking I have plans to have 2 wood sheds up next to the boiler and will want lights and 1 or 2 outlets to be able to plug in Battery Maintainers on either a ATV or tractor that will live in the shed and keep the battery up in top shape for hard winter starting.

once in the wood shed I'll due a junction box and then it'll either be 12 for outlets and 14 for the lights.

I may just run 12 instead of 10.

I need to talk with my wood boiler guy and make sure as well.
but thought I would ask the question here as well.

I would rather over due it now vs having to suffer with not having it done good enough and having to re-due again next year is all.

 

[sberry]

If you are running 14 for lights then you need to add additional breakers. For a simple circuit the easiest and one of the best ways is a simple 20A circuit on a gfci before it leaves the first building. No additional breakers none of that and 10 really doesnt give you "more",,, still limited to 20A