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 Peardu
Stranger
Registered: 10/31/13
Posts: 40
Last seen: 11 years, 1 month
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 Is a 150 watt hps enough heaowbox warm in at to keep an atti 30 degree winterc gr 
#696927 - 12/05/13 03:09 AM (12 years, 6 months ago) |
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Is a 150 watt hps enough heat to keep growbox warm in an attic during 30 degree winter Thanks
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 night train
Registered: 04/21/08
Posts: 162
Loc: Midwest, US
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Re: Is a 150 watt hps enough heaowbox warm in at to keep an atti 30 degree winterc gr [Re: Peardu]
#696943 - 12/05/13 08:06 AM (12 years, 6 months ago) |
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Most likely not. You would need a supplemental heat source if your ambient temp is 30F.
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Deadkndys420
Registered: 08/28/12
Posts: 8,720
Loc: █████
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Re: Is a 150 watt hps enough heaowbox warm in at to keep an atti 30 degree winterc gr [Re: night train]
#696983 - 12/05/13 03:21 PM (12 years, 6 months ago) |
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I agree.
A 150w hps doesn't get that hot as oppose to say a 400w.
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P-O
Registered: 10/08/11
Posts: 17,891
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Re: Is a 150 watt hps enough heaowbox warm in at to keep an atti 30 degree winterc gr [Re: Deadkndys420]
#697134 - 12/06/13 11:57 AM (12 years, 6 months ago) |
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and it gonna be extra cold when the light turns off...
put a walmart oil heater with Adjustable Thermostat.... they are pretty safe.
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Midgetpawn
Registered: 06/21/13
Posts: 577
Last seen: 5 years, 11 months
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Re: Is a 150 watt hps enough heaowbox warm in at to keep an atti 30 degree winterc gr [Re: P-O]
#698218 - 12/10/13 08:41 AM (12 years, 6 months ago) |
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I can't answer that exact question, but I can tell you that a 400w MH in a 50 degree attic only adds about 20 degrees to the space below the light. So probably not. Although you could probably use autoflower seeds or find genetics that aren't so negatively effected by the cold. Maybe.
I've been considering getting a seedling type heat pad myself. I think they make heat pads specifically for plants in cooler indoor conditions.
Good luck
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Deadkndys420
Registered: 08/28/12
Posts: 8,720
Loc: █████
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Re: Is a 150 watt hps enough heaowbox warm in at to keep an atti 30 degree winterc gr [Re: Midgetpawn]
#698220 - 12/10/13 09:14 AM (12 years, 6 months ago) |
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They sell warming cables. Heard they work okay for soil.
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Hawksresurrection
Registered: 12/04/08
Posts: 13,464
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Re: Is a 150 watt hps enough heaowbox warm in at to keep an atti 30 degree winterc gr [Re: P-O]
#698224 - 12/10/13 09:26 AM (12 years, 6 months ago) |
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P-O said:
and it gonna be extra cold when the light turns off...
put a walmart oil heater with Adjustable Thermostat.... they are pretty safe.
--------------------
Dude she isn't as young as she use to be.
-niteowl
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