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Reload this Page possibly mylar covered insulation?
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Old 09-21-2008, 11:15 AM
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Default possibly mylar covered insulation?
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Solar Shield 4 ft. x 125 ft. Foil Radiant Barrier - 4125 at The Home Depot

what is the foil on this insulation? if its not mylar, does anyone know its reflective properties?
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Old 09-21-2008, 11:19 AM
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no clue as to light reflection but you don;t want it's thermal reflection - that stuff is made to keep heat in and you want to get heat out.
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Old 09-21-2008, 11:57 AM
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another question, how big of a HID light would i need to light a 4x8 room? and wouldthis provide adequate heating to this room? (its not hooked up to HVAC)
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Old 09-21-2008, 12:14 PM
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I would go with ( 2 ) 400 watters at least to give you an even spread. That would be the starting point.
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Old 09-21-2008, 12:19 PM
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I would go with ( 2 ) 400 watters at least to give you an even spread. That would be the starting point.
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another question, how big of a HID light would i need to light a 4x8 room? and wouldthis provide adequate heating to this room? (its not hooked up to HVAC)
yea, two 400 watt lights or one 1000 watt hps light will work. plenty if not too much heat when they are on, but you can;t let the plants get too cold in the dark cycle.
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Old 09-21-2008, 12:34 PM
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thats my original reason for looking at the insulation
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Old 09-21-2008, 12:42 PM
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thats my original reason for looking at the insulation
how cold do you think your grow area would get without the lights?
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Old 09-21-2008, 06:15 PM
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eh, since winters coming up, i dunno, 40* at the lowest, but usually around 50-60*
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Old 09-21-2008, 06:31 PM
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insulation is not going to be enough. you're going to need to add a small space heater for when your light is out.
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Old 09-21-2008, 07:32 PM
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more money out of my wallet
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