my circuit box is filled and a mess from DIY’ers adding things over the years…I’d need a second box for a grow room.
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That’s exactly what i plan on doing a sub panel fir the grow room all by it self maybe tie in a few tithers from the house Ac and what not but im all full too @kabongster
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it’s an adventure turning a circuit off, so many things have been run off lines to add outlets and whatever @Countryboyjvd1971 …I know I added a box for the dishwasher and ran an outlet for a computer desk and connected into the cellar outlets for my grow area…dunno what was done by previous owners of the house
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I’d run two 15A circuits, personally. The downside is twice the copper. But the upside is flexibility, and if you throw one breaker, you’ve still got some power. Depending on how you split up loads, this could be a decent kind of backup for your grows, especially since you travel a lot.
You’ve got a lot of space on that panel, so unless you have big expansion plans, that’s my advice.
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Oh believe me i know @kabongster my house was built and owned by the builder which i thought was a goid thing initially
But since i have questioned his desicions lol
Crazy what he did with some of it ?
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Any expansion plans would include the basement, so adding a breaker for this use case would just further that endeavor when the time comes.
I will have two 4x4 tents and between 700-1100 watts of lights running between them. I could have each tent on it’s own breaker I suppose. I was thinking of running a single 20A breaker and putting an outlet right between my two tents. This is something I have to think about a little more.
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Id 20 amp myself the difference in wire size in minimal
I also would run a 220 line for my fixtures
not much more efficient but any and all helps imo
Again it all depends on distance from panel as well and amount of work your comfortable with
But you have options @Bogleg
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Set to watching! Congrats on the upgrades too!
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Well, the distance from the panel to my tent is about 10 feet. Hehe.
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Dude hell yeah easy breezy run two curcuits you wont be sorry
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I think you have some really good info so far.
There’s lots of things you can do. If you run 120v circuits though, I would just go ahead and make them 20 amp. The wire is a little more expensive, but the rest of the stuff not terribly more if at all.
There may be some value in doing a 230v circuit. If nothing else just for your lights. You get a couple percent increase in efficiency that way. If you don’t have to cut drywall or anything, there’s no reason to go hard and install 2-3 circuits at once either. Having multiple wire pulls at the same time can get confusing even for people that do it everyday.
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You also use heaters, right? Don’t forget that those can have relatively high peak current as well. You’re probably in fine shape anyway, but add up all your loads - ventilation, even the little breeze fans, heat, lighting. That in-tent vaporizer. 
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Yeah the heater is a bear - I would like to avoid using it but it’s unavoidable. I’m hoping I can exhaust the air from one tent into the other (flower to veg probably) to re-use some of the hot air and not have to run a heater in each tent, but I’m guessing that will be wishful thinking.
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If you do that, exhaust flower tent into veg tent, not the other way around. Just to keep your peak co2 levels on flowering side.
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I’m thinking I can also get away with a single filter since the veg tent usually isn’t that odoriferous. Speaking of which I need to add cleaning/replacing my filter to the to-do list.
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Is your hvac / heating equipment in the basement for the house @Bogleg and if so what type of system do yoy have ?
It is - I have a central air system with zoned heat/AC (two zones). I looked at the controller and it doesn’t allow me to add a third zone. I have been looking into dropping a line from the main duct for my tent but I want some control over it - not just whatever is going up into the first or second floor.
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I can help you out there if your really are interested bro
I would Need a little info tho
Let me know buddy
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Awesome. Set to watching too @Bogleg
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I added a sub-panel for my shop (in the basement) but have now built a dedicated shop and the sub-panel is available to my grow room (in the basement as well). Be sure to understand the grounding issues specific to a sub-panel to insure that you have a safe installation. Also, since I have water supplied to my grow room, I have installed GFCI breakers on the two 20 amp circuits that supply my grow room. @Countryboyjvd1971
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