itzgrowtime
Member
im usin an old 30pint i believe. Its ancient, and still chuggin away. I havent had any issues so far, but i know when and if it dies. im gonna try to get a larger more efficient one also.
The window AC unit box is great but not really applicable for a dehumidifier. With a window AC unit the outside coils transfer the heat from the inside coils and the box takes the heat farther away from the room. This would mainly be for people who are trying to keep hot air away from the outside of there room or security or what not.
With a dehumidifier the hot air from the coil is what lowers the humidity in the room. As the air passes over the coils it pulls moisture from the air and heats it a little bit. If there is a way around this or a special unit I haven't heard of it yet. Even though an AC unit and dehumidifier operate on the same scientific principle they function way different.
I am kinda curious though do you have a sealed room? If you don't have a sealed room a dehumidifier is really a mute point. If your room is sealed and running CO2 then the room would be able to handle the slightly elevated heat coming from a dehumidifier. Every situation is different.
both the 70pint and 50pint models contain a "17 Pint Container Capacity"
The window AC unit box is great but not really applicable for a dehumidifier. With a window AC unit the outside coils transfer the heat from the inside coils and the box takes the heat farther away from the room. This would mainly be for people who are trying to keep hot air away from the outside of there room or security or what not.
With a dehumidifier the hot air from the coil is what lowers the humidity in the room. As the air passes over the coils it pulls moisture from the air and heats it a little bit. If there is a way around this or a special unit I haven't heard of it yet. Even though an AC unit and dehumidifier operate on the same scientific principle they function way different.
I am kinda curious though do you have a sealed room? If you don't have a sealed room a dehumidifier is really a mute point. If your room is sealed and running CO2 then the room would be able to handle the slightly elevated heat coming from a dehumidifier. Every situation is different.
Wait, I missed that... what do you mean about dehumiidify = moot, if not sealed room? You're saying, humidity is ok in non
sealed room? I'm missing somting.
Every situation is different. If you are exchanging the air in your entire grow room once every few minutes then what matters more then anything is the RH level going into your room. If your house air has 50% RH and is exchanged within the grow room every few minutes there is little you can do to lower your grow room RH save lowering the RH going into the room.
I am not saying high humidity is ok or not okay. In my veg room during the summer most of the time it is over 90% humidity as the room is in constant ventilation with the air outside that has a high RH. However in my flowering room it is sealed so I run a dehumidifier to keep the RH at about 45-50% to keep mold problems down and to encourage plant growth.
One thing I will say is sometimes it is shocking how much RH our plants add to the room. My 512ft3 grow area is sealed very well. It is basically 10 sheets of plywood with great stuff sealing every joint inside and outside. Then I have taped together a layer of the reflective as a vapor barrier. In addition the outside of the wall is the reflective insulation board taped together at the seams with fiberglass insulation in between that and the plywood. I can sit in my grow room during lights out and watch the humidity with the temperature at 76 degrees rise from 40% RH to 55% RH in 2 minutes with outside humidity down below 50%. That is with no exhaust.
If your house is 50% RH or lower your best solution to lowering your tent RH is to increase the CFM that is exhausting the grow room. If you currently run lets say 300 CFM by just upgrading to 400 you are exchanging the more humid grow room air with your house air faster which should lower the RH in your room.
One thing I will say is sometimes it is shocking how much RH our plants add to the room.
I think my dehuey this time of year is removing almost as much water as the plants drink in a day. I don't think this is mere coincidence.
The Frigidaire also has this, on the side. I haven't used it that way either but it's nice knowing I canI use a Dandy DDR7009REE 70pint Dehumidifier. It already has a spicket in the back for a drainage hose. I haven't used the this feature yet....
The Frigidaire also has this, on the side. I haven't used it that way either but it's nice knowing I can