Scotty, I added an Eberspacher D1LCc to our Hunter Horizon 26. It burns next to no diesel, sure the voltmeter takes a dip for the first couple of minutes, however, after that it ticks away and at the lowest setting keeps the saloon etc at 12 degrees. An e-bay purchase ex BT unit also bought the stainless exaust outlet a length of outlet pipe for the warm air and away you go. I also by-passed the one hour timer BT fit to let it run non stop if required. I only have one 85 amphour battery charging from the Yanmar 1GM10, no probs yet! Get one, you know you want to!! Check out for some tecky info at www.espar.com/htm/tecmans.htm