Posted: 28/10/2013 at 14:31
Thankyou blairs I will look into this
I did see a fan greenhouse heater in this months GW near the back page
Have a look on Amazon warehouse - they often have cheap electric fan heaters with thermostats for half price. I would say it cost about £20 more to use it last year and that was with those late frosts James!
I would only say it was cost effective if you already have electricty in the GH of course as it costs loads to instal with trenching etc.