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UK420 > Cultivation > Growroom Design > Environment
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  1. temperature in tent (14 replies)
  2. ok to have no intake during lights off? (4 replies)
  3. Bottled co2 (4 replies)
  4. Too hot - will a 180cfm extractor cool it down or is space too small? (10 replies)
  5. 2 fans 1 filter (3 replies)
  6. Ruck fans. (7 replies)
  7. Do I need an inline fan for my growdrobe? (4 replies)
  8. cheap fan speed controllers!!! (21 replies)
  9. is extract to same room bad idea ? (9 replies)
  10. 5inch ruck (1 reply)
  11. extraction prob (9 replies)
  12. fantronic fan speed control (5 replies)
  13. Air Circulation (14 replies)
  14. Intake & Exhaust Size? (15 replies)
  15. fan (8 replies)
  16. can i convert my active intake fan to a hepa filter ? (4 replies)
  17. extraction advice (8 replies)
  18. Is this extraction sufficent? (11 replies)
  19. Rhino/phat filters v Budget filters (11 replies)
  20. air conditioning unit?? (12 replies)
  21. Using Ozone (5 replies)
  22. how long should my fans be on? (8 replies)
  23. Need a new CF, but which should I get? (8 replies)
  24. humidity, possible props. (8 replies)
  25. Air intake (18 replies)
  26. problems about setting up my dehumidifier in my grow tent (22 replies)
  27. ionizer tower fans (2 replies)
  28. manual co2 (6 replies)
  29. help on air outlet (3 replies)
  30. Fan controllers - what do you know? (2 replies)
  31. Heat Problem in grow tent PLEASE HELP! (25 replies)
  32. ruck v rvk? (23 replies)
  33. Cubic foot RVK's? (1 reply)
  34. do i need to a contactor to use a timer with 400W dehumidifier ? (15 replies)
  35. 5" fan and 4" fan (8 replies)
  36. 2x 600wt with 8 inch rvk (4 replies)
  37. Ozone Generator (11 replies)
  38. rvk question (5 replies)
  39. Will this cope (2 replies)
  40. outgassing/offgassing from cables and adhesive band ? (3 replies)
  41. Heat (4 replies)
  42. What size fans will I need for a space this big.. (4 replies)
  43. contactor confusion (4 replies)
  44. dehumidifier capacity ? (0 replies)
  45. where to place tube heater in tent (27 replies)
  46. 2 tents in room (8 replies)
  47. carbon filter vs. no carbon filter (9 replies)
  48. Heat problems (13 replies)
  49. Will I need 4' or a 5' extraction (16 replies)
  50. ventilation problem (2 replies)
  51. Big Temperature Problem! (13 replies)
  52. filter outside tent (2 replies)
  53. Cardon Cloth or Cardon (2 replies)
  54. Quick fan Q (11 replies)
  55. co2 (3 replies)
  56. air circulation when flowering (6 replies)
  57. Rising Humidity @ Week 5 (16 replies)
  58. Heat problems! (4 replies)
  59. carbon filter setup (2 replies)
  60. Intake/Extraction (6 replies)
  61. Hygrometer (5 replies)
  62. air flow (3 replies)
  63. Looking for a bit of growroom advice (14 replies)
  64. too small a space ?? (1 reply)
  65. new loft project (7 replies)
  66. big bad heat mats (13 replies)
  67. airflow quickie (11 replies)
  68. scrogging (4 replies)
  69. Any one used one of these ? (2 replies)
  70. Grow Tent Passive Intakes - light leaks?? (10 replies)
  71. Dehumidifier in grow tent (12 replies)
  72. RK.S 100 LS plastic 4 speed Fan (5 replies)
  73. humidity 80% lights out (21 replies)
  74. the start of damp-mold (6 replies)
  75. A piece of paper just flew up my intake duct... (4 replies)
  76. min/max temps? (5 replies)
  77. How can I keep the temps down? (4 replies)
  78. Negative Ion Generator (7 replies)
  79. ĦLIDL 'Weather Stations' in again @£15 - bargain! (15 replies)
  80. 6" inch fan dimensions for box (2 replies)
  81. ruck n filter (0 replies)
  82. how to lower temps? (14 replies)
  83. One for the professionals please!!! (15 replies)
  84. checked ma temps (6 replies)
  85. Carbon filter + bedroom = health issue? and mess (7 replies)
  86. acquiring C02 (75 replies)
  87. optimum temps lights on/off? (15 replies)
  88. difference in readings from 2 hydromiters (3 replies)
  89. Intake and Exhaust (7 replies)
  90. Dia In Line Duct Extractor Fan (9 replies)
  91. what to do...... (3 replies)
  92. Another odour question (6 replies)
  93. Need help with fan/filter... (10 replies)
  94. need a new carbon filter, how well do the odorsoks work? (4 replies)
  95. uvonair (1 reply)
  96. need help on how to get negative presure? (5 replies)
  97. fan and filter flow rate differences (2 replies)
  98. My Bud box XL (8 replies)
  99. Passive intake size? (3 replies)
  100. 4" phat filter, 5" rvk (2 replies)
  101. Filter out smoke from intake? (0 replies)
  102. 6" phat filter, 5" fan (6 replies)
  103. Sealed room Questions (3 replies)
  104. 5 step variable transformer wiring help (1 reply)
  105. what fan to get? (4 replies)
  106. can i put a C filter on both ends of the out let ? (10 replies)
  107. unis co2 controller question (4 replies)
  108. Temperatures (45 replies)
  109. unis co2 controller and fans (0 replies)
  110. Can Carbon Filter (24 replies)
  111. Silencers at intake/extract (12 replies)
  112. ODORSOK (6 replies)
  113. 2x600w and a 5inch rvk (9 replies)
  114. Methods for reducing temps. (6 replies)
  115. Anyone use a lightrail with an aircooled light? (5 replies)
  116. Airflow/environment at night? (5 replies)
  117. whats the cheapest way of heating a room? (5 replies)
  118. fan size (6 replies)
  119. ozone genny and carbon filters (9 replies)
  120. tem problem ( grow tent,cooltube and 5 '' 350m3 extractor ) (15 replies)
  121. Will this do the job (2 replies)
  122. New room should my fans be ok with 2 600w (17 replies)
  123. Rhino Filter Straps / Silencer / General WTF (2 replies)
  124. Morning Dew!!!!! (12 replies)
  125. 5" cooltube & 10" ducting (5 replies)
  126. Odour Sok Air Filter? (8 replies)
  127. Do i need Co2 in my grow room? If so what does it do? (6 replies)
  128. What Is The Acceptable Night Time Temp Drop (11 replies)
  129. some help with intake fan? (8 replies)
  130. Small grow room- £15.00 for a filter that removes odours! (0 replies)
  131. Oil filled radiator (lights off) (22 replies)
  132. Which humidifier? (4 replies)
  133. Thermostat for cooling and heating (39 replies)
  134. Primair controller problem (9 replies)
  135. Air purifiers/ ionic purifiers (7 replies)
  136. Can I use this thermostat for my intake fan? (1 reply)
  137. Negative Pressure...Cani Anyone Explain It Simply? (20 replies)
  138. passive intake concerns (6 replies)
  139. Extracting air into the same room? (17 replies)
  140. How can I test my carbon filter? (10 replies)
  141. Please Help Setting My New Primair Unit Up (2 replies)
  142. What size inlet? (4 replies)
  143. Could the guy in the shop have blown my thermo (3 replies)
  144. best 6' fan is best (4 replies)
  145. not your normal temps problem !!!!!!!! (8 replies)
  146. So I installed my fans and primair..BUT (9 replies)
  147. using a T piece to go in then out (8 replies)
  148. CO2 Controllers (0 replies)
  149. air con (2 replies)
  150. bloody temps (17 replies)
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