Which type of heating is best, Truma, Truma E, Truma Diesel, Webasco? I would appreciate any advice with regard to the above. I have had personal experience of Truma E and Propex, but have not had any experience of the other options. My experience of Truma E makes me wonder if the "E" is worth the extra money. I suspect a small fan heater might be better, much cheaper and more efficient. I would like to know about the efficency of the diesel options and the comparative costs of running, if anyone out there could help. Thank you.