Window vs Dual Hose Portable vs Mini-Split AC

3 ton mini split will be perfect. But I'd go 4 ton if you were gonna add more lights in the future.

I've tried all three. The portable units are a waste of money. They simply don't work well and are inefficient. The window mount units are ok, but a big enough one to both heat and cool are close to the same price as a mini split and you are bringing in outside air which kind of negates the use of C02 as you'll be exchanging and replacing your inside air (and wasting your C02). If you can install it yourself you can save quite a bit on the mini split overall cost. It's not difficult and the proper tools and gauges are cheaper than an install unless you have a buddy in the HVAC business. They also make units that are made to DIY install yourself and the lines are pre vacuumed. All the mini splits come pre charged. They are also very efficient for both heating and cooling, The DC inverter variable speed compressors use a fraction of the power of older heat pumps and AC units and have higher seer ratings. You can also get multi zone units that have one outside evaporator unit and 2 or more inside air handlers than can in the same or different rooms. I installed mine myself and working alone it was fairly simple 1 day process taking my time.

Buy a good mini split the first time. Check hvacdirectonline. I bought a 12k Mitsubishi shipped for $1400, with the install kit

Herb & Suds said:

All A/c has dehumidifying capabilities except a swamp cooler
terrible recommendations

You have so much invested you need a couple mini-splits with remote evaporater coils probably two for each

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I was talking to an HVAC expert and they said for grow rooms you range between an ACTUAL BTU per light of between 4-6k. This accounts typically for other things such as ballasts, dehu, etc... he said I would be looking at around 36000 BTU (3ton) unit to get the job done. Are you saying that is a terrible recommendation or are you saying split it up into like 2 18000 BTU mini splits? Can't you just get multi-zone instead?

xIPhobiaIx said:

I was talking to an HVAC expert and they said for grow rooms you range between an ACTUAL BTU per light of between 4-6k. This accounts typically for other things such as ballasts, dehu, etc... he said I would be looking at around 36000 BTU (3ton) unit to get the job done. Are you saying that is a terrible recommendation or are you saying split it up into like 2 18000 BTU mini splits? Can't you just get multi-zone instead?

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Split for veg and flower was my thoughts

Multi-zone is great until the demand of two room s overtakes the A/C