Hi Eric,  we have the D5LC 24volt. It's 14 years old and Espar may  now have a different one. Wonderful bit of kit. We ran it every day in Chile and still use it in the Med.
We also used two domestic fan heaters, 220v , 2kw each. Run both those and the Espar and your boat will be dry and warm in an instant.
Oh, and don't forget the aircon heaters, though they aren't hugely effective when it's really cold , but good for ventilating the boat.
Ian and Judy, Pen Azen, SM 302, Corfu

To: amelyachtowners@...
From: amelyachtowners@...
Date: Tue, 26 Aug 2014 23:52:06 -0400
Subject: [Amel Yacht Owners] Espar Heater