Well this is the heater I bought: http://www.walmart.com/ip/Sunbeam-Compact-Personal-Heater/15126049. I put it on the lowest heat setting, it will raise your temps about 5 - 10 degrees but it will also lower your humidity 5 - 10 degrees. Your temps should stay consistant during your light and dark period. This is how I corrected my humidity, I am not sure if it will help you, but for $15.00 at walmart it is worth a shot...
Ive done alot of pruning since these pics were taken those were at about 20 days in. They have packed on some weight since then. Today is my 38th day. I will update with some new photos tonight. I think Im going to invest in a little dehumidifier to correct this. I deduce that it is a good long term invest me in the op aswell. TY