

-- Ah! I should have asked! I assumed you were in a nice warm tent or something
,... low T is hampering growth for sure as well! This will really become an issue later if you don't get lowest T above 50F at night,... several nutrients uptake and transport are restricted by constant cold T, causing defc.'s to occur,... Plus seedlings really need more consistent warm T's for a proper start too... well, do what you can mate! 
If humidity is low I put in an open tub filled with water it helps raise itThanks gents. I'm keeping one of the cabinet doors slightly open with the heater facing in which brought the temp up to a steady 26 deg or so. Hoping the air flow will be ok with door open slightly and small fan running inside.
I'll try and find the humidity meter. What do you normally use to control humidity/adjust?