heat problem

in summer i have heat problems goes up to 95 i have large extractor sucking it out and 1 blowing it in trouble is the one blowing in is,nt cold air it the warm air from outside.ihave tried portable air conditioner but it does,nt work it blows cold air for probably 5 minutes then cuts off and sucks hot air out which is no good because i have a carbon filter that it needs to go through first somehow i need something that blows very cold air in constantly has anybody got any ideas what i can do

try your portable ac outside of the room with diy ducting to bring the cold air in

i cant its in a shed and it would still switch off after 5 mins

Hate to be the barer of bad news, but if surrounded by hot air, and no way to keep cool air in b/c of circulating air, then we have a problem... oh , but as I was writing I did remember a guy using a dorm fridge. He had circulating water through it and having a fan blow over the outside cool water. its a thought...

good idea but limited to electric i thought of a air cooler because you can get ice boxes for them i think, so that might work thanks any way friend

are u running the lights at night time??

no but that is a good idea didnt want to incase chopper goes over and see,s it but might have to risk it it would definatly bring it down

If you want to control temps you have to control the enviroment. If the shed is not insulated then your not controlling the environment. The exhaust system is not supposed to cool a room, its supposed to put 'fresh air' that has not been depleted of its co2 by your plants.
I am guessing your not air cooling your lights in a seperate system? The Air-Con is probably shutting off on Thermal Overload, it has a protection feaature built in, if the blower motor gets too hot, its shuts down so it doesn't 'burn out'.
There is not any difference between how you would insulate a house you want to live in and the shed you want your plants to live in, I bet your house is insultated. You don't think your plants deserve some too? Once that has been done, the only remaining difference is ANY HIGH POWERED LIGHTS, or more than normal for the size of the space, so you isolate that.
After thats done, if your portable air conditioner doesn't do the job, it doesn't have enough capacity for the size of the space with the ambient temperatures you have or you have worn it out by trying to have it do something its not designed to do. VV

i did insulate the shed but never knew that about the portable air conditioners,cheers, and as for the lights the air cooled lights do they not have a extractor fan that blows air from outside over them,because if it was in its 90,s outside ,it would,nt change temp inside very much dont know how they work really

heard about water cooled lights to does anybody know how they keep it cool

pud said:

i did insulate the shed but never knew that about the portable air conditioners,cheers, and as for the lights the air cooled lights do they not have a extractor fan that blows air from outside over them,because if it was in its 90,s outside ,it would,nt change temp inside very much dont know how they work really

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Haing the lights in a seperate system will eliminate the heat from the light from the room because of the movement of the air, it keeps the temperature from rising. I installed a 1000watt air cooled light in my room and replaced 2-4' 8Bulb t-5 lights, the temperature in the room dropped 2 degrees. And moving the air from the furnace will lower the temperature, that is atually how your house furnace work, it blows the hot air out, into your ductwork, througout the house and pulls the cold air from the floor back into itself. It will make a difference, trust me on this one. VV