Eco Fan

I am still toying with the idea of an ecofan. The sitting room and stove are at one end of the boat, and my bedroom is at the other. Flapping a newspaper does help distribute the heat, but is an eco fan better? Are they REALLY as good as the sellers say they are? What is their RRP for 2 blades and 3 blades?

RRP is something I am rather interested in. I bought a whale gulper recently, its RRP is 89.99pounds. I paid 89.99pounds for mine from Uxbridge Boat Centre. Other chandlery centres charge anything up to 140pounds. OUCH.