Eastern Downeast 27 with Xtreme Heaters Engine Compartment Heaters Dear Xtreme, I just purchased your 300w heater for my Eastern Downeast 27 because the boat is in a slip year round and the marine mechanic recommended it. After some internet research i purchased one of the Xtreme units . Since i use my boat year round on lake Norman and below freezing is common during the winter i can use the boat with confidence .Great product. I have it hardwired into the 120 shore power and the installation couldn’t have been easier. – Thanks John H Eastern Downeast 27 with Xtreme Heaters Engine Compartment Heaters Good Product! Custom Heater Location