Will exhausting a 400 watt into a room heat it up alot?

[TurboFish]

Just wonderin fi I ahd a 400 watt cool tubed in a grow cabinet and was exhausting it into a room, how hot would it heat that room up if the ac is on in that room at 74f? i can't vent the hot air outside or to the attic, but atleast I can vent the grow cabinet into the room. eventualy the air will go threw the ac unit again.

 

[ak-51]

You should be fine. A 400 isn't going to make a ridiculous amount of heat, and if there's an A/C in there then you'll be fine. I have run a 400 in a small bedroom during the winter and all it did was keep the room warm.

 

[TreeTopHi]

You should be fine as long as you have some type of AC in there. Maybe not even need the A/C, as a Fan sounds like it would do the job. (The stand up ones that move around) Can get them for 10-15 bucks at walmart..

Cheers

 

[headseed]

I have a 4x4 tent with an open bulbed 400 watt in it, 170cfm fan exhausting the tent pulling through a carbon filter and if I leave the room closed up for 8 hours ambient in the house is anywhere from 65-70 and the tent is 81-84, room tent is in 75-78. There is the heat from the magnetic hps ballast as well.

You have A/C going and will be fine fine fine fine! How many BTUs is it and is a window or a portable? If portable is it a two hose?

 

[iamdink]

I vent a 600 watt and also pull through a carbon scrubber. Exhaust into 10x10 room with AC unit, works great. Actually biggest problem is when temperature drop outside and AC thermocouple won't click. In Winter you can just leave window open.

 

[TurboFish]

I was going to tap into an a/c vent from attic and run it to back of grow cabinet. so 74f is what the air flow would be into the cab, wouldent need fan cus it would be fairly windy in their from the a/c line. id like to seek temps 75-80f

 

[TurboFish]

I want to get a 400 watt dimable digital ballast. IF I set it to 250 watts on the digital will it reduce the heat to a comparable 250 watt bulb? or as far as dimming a 400 watt bulb down to 250 watts, how much less heat will it put off? im not comparing a 250 watt standard bulb, jsut wondering as far as a 400 watt dimmed to a 250, how that compares as far as heat.

 

[fukndenny]

just to update this question,

running 400w exhausting into the same room, central a/c set to 75F , room with 400w stays 80F.

 

[señorsloth]

i have a 400w cooltube running in my bedroom, but i don't have ac in my room, i must use a box fan to get as much cooled air from the livingroom to circulate in my bedroom as possible durring the night when the fan is on, usually it's about 10 degrees hotter in the summer 5 degrees in the winter. if you have an ac in your room you should be fine, i really wish i could get away with putting one in there! if i forget to leave the door open though it will get retarded hot, i swear it's been up to a hundred in there a few times when i forgot! so just remember not to leave your ac off at any time till the temps cool down outside!

 

[zeropercentthc]

One thing you could do is simply run a 400 watt appliance in the room for a while and see how warm it gets. Though with the ballast and fan it might be more like 500 watts. Plug in a bunch of lamps, or a few TVs or something. Some computers will run close to 400 watts if they have a lot of high power components. Of course check the specified wattage of whatever you're using and add it up.

 

[señorsloth]

i don't think thats how it works zero...just because it shares the same wattage doesn't mean it uses that wattage with the same effeciency. for instance my 400 watt light is easily ten times hotter than my computer with both screens on and my tv on as well. even in lighting it's different, 400w of led wont heat up a room like 400 watts of hps, frankly the thought of comparing watts to heat like they are somehow going to correlate is just wrong and wont be very effective. most electronic apliances like tv's and computers are much more energy efficient (meaning less wasted as heat) than an hps bulb!