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That's not atypical. The forced air is seeking the path of least resistance, so more of it will come out of the vents closer to the A/C unit. There is only so much you can do, unfortunately, without having the HVAC company redo some things, but there are a couple of tricks you can try.
One is to partially shut/cover the vents closer to the A/C, in the hope that more cold air will be diverted to the back of the house. Another is to use some fans inside the house, to move the air around.
You can also try installing some register fans, in the back of the house, in the hope of pulling more of the cold air back there. I've never used them, personally, but some people love them; ultimately, I think it depends on the setup of the house and the HVAC system, but for the cost, it might be worth trying. Here's an example, on Amazon:
I can give you the basics:
A 6" inline EM driven fan (quiet compared to standard inline fans, and about 3x the price)
2' of 6" straight duct.
A 14" inline filter box.
Cabinet from Ikea with some slots cut into it.
Mount everything using a small piece of rubber (in the cabinet) to further reduce vibration and noise.
You can more precisely control the speed with https://www.amazon.com/Electronic-Controller-Variable-Adjuster-Hydroponics/dp/B07T9BLJ7L/
Some people have had great results with simple secondary booster fans registers, like this one:
Might be worth give it a try, before attempting a major overhaul of your system.
Register booster my dude. They are "dumb" but they work. https://www.amazon.com/AC-Infinity-Register-Thermostat-Control/dp/B0792QR5YT/
I would much rather have smart vents but I'm in the same scenario as you and don't want to spend the money to deploy them in the whole house.
If its just too much vibration you can use a fan controller to fine tune the speed. https://smile.amazon.com/gp/product/B07T9BLJ7L/ assuming it's the corded model.
Will second this. I bought this one:
https://www.amazon.com/gp/product/B07T9BLJ7L/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
And on the lowest/slowest setting, it's very quiet and a deep rumble that feels amazing.
AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B074XBXFPD/ref=cm_sw_r_cp_api_glt_fabc_SJ2H94S5PRHY9GJ39KS7 here is the Amazon use CANUCK15 for a discount code
There's inline fans like these.
Here's a shutter exhaust fan with temp control.
This right here, plus some 4" dryer hose would easily vent out any harmful stuff. If you were the clever sort, you could probably route it out with normal dryer exhaust.
That's not atypical, and there is only so much you can practically do about it, but I'll offer a couple of suggestions.
- If you have a return duct both upstairs and downstairs, try covering (or mostly covering) the downstairs duct. That will force the system to draw more of the hot air from upstairs and cool it down.
- When it gets really hot, try switching your blower fan from "Auto" to "On." (Usually a switch on your thermostat, but not always.) That way, even when the downstairs cools off enough to turn off the A/C, you'll keep circulating the air in the home, making the temp more even.
- I've never personally tried the vent booster fans, but some people have great success with them, in your situation. It might be worth buying a couple and trying them out. Here's a link to one on Amazon: https://www.amazon.com/AC-Infinity-Register-Thermostat-Control/dp/B0792QR5YT/ref=sr_1_5?dchild=1&qid=1622895005&sr=8-5
up to a good start...
not sure what power is your light... but i used a 6'' vivosun inline booster fan for my 5x5 with a 400w hps and it sucked the air out quite fast, a bit noisy should be more than enough for any hps and was pretty cheap compare to the usual inline fan.
and you can buy a speed controller for cheap on amazon too.
These are perfect! Thank you! Now I won’t need to wire a new switch if I use one of these inline fans.
Yes, 4" exhaust fan should do it. I would also leave the doors open during lights on so that the heat isn't all trapped in the closet. But that's just me. If noise is an issue I'd go with AC Infinity.
If it's not and cost is more your concern, something like this might be better for you.
I'd be more inclined to get two smaller fans rather than one big one, but that's only because I like to control every detail and I'd be treating each tent as its own environment even though they're right next to each other.
How large of a tent can you fit?
Like the other guy mentioned, AC Infinity is swinging hard in to the grow industry right now. They even have an LED light coming out REAL soon that I will be purchasing on release. I suggest their equipment from my experience.
No matter what tent or anything else you choose, I will 100% say that in my opinion and I would be willing to bet on most anyone else that has used it, the AC Infinity Cloudline inline fans are absolutely the best buy for the money. They are also very quiet compared to fans I've used. https://www.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_apan_glt_fabc_KHXV23N3A5QKVCPDTQ6T
They automatically kick on and off depending on the environment rules you set.
i.e. humidity set at 60% and temperates set at 80°f means that any time the sensor detects that your tent gets hotter or more humid than that, it kicks on and vents out your tent till it's back in spec. It's SOOOOO NICE to have that autonomy.
You can just get a regular in-line fan it’s a lot cheaper. Not sure if that would help you or not if the ductwork is falling apart it may not help you at all. If you want to put a booster fan in this is what I would get in your situation
AC Infinity RAXIAL S6, Inline Booster Duct Fan 6” with Speed Controller - Low Noise Inline HVAC Blower Can Fan for Basements, Bathrooms, Kitchens, Workshops https://www.amazon.com/dp/B07ZPC5GTX/ref=cm_sw_r_cp_api_glt_fabc_CXE499AZKAH56F4SZBDF
Look into inline duct fans for pot grow rooms, 4" is a good size. Vented out the floor.
This is my duct fan. Im about to order a 2nd one soon. One to pull air in at the bottom and the other w a carbon filter to pull air out the top.
That was exactly the problem, it wasn't! The builder we chose is in central California and clearly did not have experience with the PNW climate. The ductless range hood fan was just spreading all that humidity from cooking right back into the house. I installed a 6" booster duct fan, ducting and a dryer duct cap vent on the outside of the house. I also put in a 4" inline duct fan with carbon filter for fresh air intake, routed to release directly above the split intake so A/C & heat are both using fresh air. We also use a dehumidifier listed for 1500 sq. ft., even though our house is only 240 sq. ft. Humidity tends to hover around 35-40%. An ERV system would probably be better performing but is difficult and expensive to install if the house is not designed for it. My DIY solution cost about $300 or so and works quite well. An ERV is more like $1,000.
After 1 month we went to flip the mattress over (bedroom loft) and it was covered in mold! Of course we had laid it directly on the loft floor because we had no idea that is like the perfect place for mold growth (heat from our bodies combined with cool, uninsulated surface of loft equals condensation). Now we have an open cell mattress underlay that lifts it up 1/2" and allows air to flow around.
There are lots of blogs and youtube videos available about mold in tiny homes, we just didn't think to look into it because we always lived in normal sized houses where it's not an issue.
One thing I didn't see in the comments(or missed), be cautious about closing to many vents. It can cause too much back pressure on the blower fan and prematurely wear out the fan. Also, it is not recommended to run your fan 100% of the time. It doesn't allow the condensate to drain off the EVAP coil when the AC is running. Which can cause mold and will only put the humidity back in the air. I turned that function off and have saved money and been more comfortable during the summer. What I did to help with temp differences was install a vent fan. It replaces the register cover with a programmable fan to help pull conditioned air in the room. It help a lot. https://www.amazon.com/dp/B0792QR5YT/ref=cm_sw_r_cp_apa_glt_fabc_X6ME3G3VC1B93YM5M80F
Here’s the post, have photos of everything
Condition: good
For sale a complete grow setup to grow 4-5 large marijuana plants (or other plants too I guess).
Included are:
4x4 grow tent
Power strip and surge protector
Electric timer for lighting
Oscillating fan
Silent ventilation fan with carbon filter: AC Infinity CLOUDLINE T6 https://www.amazon.com/dp/B074XBXFPD/ref=cm_sw_r_cp_api_glt_fabc_G8NC6TE1C8H23VTXWNH1
5x 5-gallon buckets
4x bucket stands on wheels for easy trimming/access
6x bucket lids with baskets for DWC setup
5x airstones
4 way air pump
2x adjustable light hangers
Horticulture lighting group Quantum board LED light panels (1 3000k 1 4000k light spectrum QB288 V2)
1 power supply from HLG for lighting panel
Full range of Advanced Nutrients hydroponic lineup, mostly full
Growing medium for seeds
Clay pebbles for filling your pots
4 tier drying rack
6x 64oz mason jar containers for finished product
High end seeds, auto flower feminized seeds from Mephisto, DC seeds, and assorted bag seeds (over 100+ to get you started).
This is enough to grow monster plants, nothing wrong with anything just can’t keep up this hobby anymore. Last grow between 4 plants I harvested about 2 pounds of great product.
AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_cp_api_glt_i_K06MVRXG8SBEGPX22JV9
Trust me you’ll be glad you got this!
If you have flex ducts, you could try an in-line fan like this. The key is forcing air through your existing system. You might also want automated registers to open and close vents in other parts of the house. Basically there’s all sorts of tech around AC efficiency to help cool/freshen certain rooms.
Try this for your daughters room: works very well
AC Infinity AIRTAP T4, Quiet Register Booster Fan with Thermostat Control. Heating Cooling AC Vent. Fits 4” x 10” Register Holes. https://www.amazon.com/dp/B0792QR5YT/ref=cm_sw_r_cp_api_glt_fabc_s2HeGbFEHXYBN?_encoding=UTF8&psc=1
Btw I just added an ac infinity t4 inline fan w/ 4” carbon filter, it’s pretty awesome. It’s fairly automatic, “set it, and forget it” as I like to say. I just enter the rh% & temp highs and lows, and the fans kick on when it reaches that zone. It has also eliminated the smell completely outside of my tent which has been awesome. It’s legal in my state but I still want to be discrete.
AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B06ZXWN3BG/ref=cm_sw_r_cp_api_glc_fabc_F5ZbGbZ9GJP6E
yeah i started with the vivosun 2 in 1 messing with different configurations then the gf got me the gorilla and no looking back.
this is my fan:
AC Infinity CLOUDLINE T6, Quiet 6” Inline Duct Fan with Temperature Humidity Controller - Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics https://www.amazon.com/dp/B074XBXFPD/ref=cm_sw_r_cp_api_glc_fabc_MM93FbPMEK4QB
and filter:
AC Infinity Air Carbon Filter 6" with Premium Australian Virgin Charcoal, for Inline Duct Fan, Odor Control, Hydroponics, Grow Rooms https://www.amazon.com/dp/B07GSKTT86/ref=cm_sw_r_cp_api_glc_fabc_.N93FbMD7PZMX
I run it in the tent where the fan pushes air through the filter out the tent and it creates negative pressure contributing to smell prevention
PC fans might work but you want to be able to have it powerful enough to suck the air from the box into the tent or the smells with just leak out of the little gaps and cracks. I guess it depends on the size of the box you're using. I use this fan which may be borderline overkill but it works pretty good.
https://www.amazon.ca/dp/B01C82SZRM/ref=cm_sw_r_cp_apa_fabc_3H8ZFbZ6CC7Q3?_encoding=UTF8&psc=1
Look cloud line A/C infinity. They are insane with performance and my is only a little loud, like less than my clip on fan, on the highest setting and I use the filter sleeve it came with so it’s pulling even harder. DIY will never fucking work man. Not 100% and definitely not noise free. How you gonna move the air? There somethings that you DIY but personal I wouldn’t for the filter. AC Infinity CLOUDLINE S4, Quiet... https://www.amazon.com/dp/B07JB292JC?ref=ppx_pop_mob_ap_share
they are not that expensive that the other kind people pointed out. Save your self the headache man.
swap that front fan with an axial duct fan ;)
Airflow will never be a problem again
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I bought it off amazon.
Here is the duct fan i used: https://www.amazon.com/gp/product/B074XBXFPD/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1
And here is the ducting: https://www.amazon.com/gp/product/B072SH65FN/ref=oh_aui_detailpage_o04_s02?ie=UTF8&psc=1