Ha ha, hope that's not too much information for everyone. I plumbed in my dhw coil Wednesday night and just wanted to share. Thursday morning I got up and started a fire. After an hour or so, the tank was about 70c so I decided to take my first shower at the house not provided via oil. I honestly had no idea what to expect but I was really happy with the results. I thought maybe I would have hot water, but maybe it wouldn't last like the oil furnace. I don't know what my hang up was, but I just didn't know what to expect and it's been in the back of my mind during this whole project. Well, after 20 minutes of not running out of hot water I gave up (this from a guy who likes to keep showers around 5 minutes usually). When I came down stairs, the tank was actually hotter than when I started. I think I'm really going to enjoy being a part of the gasser club. And hey, if any of you are reading this that have helped me out with my questions over the last year or so since I joined the forum - a special thanks to you.