I will now be on my third boiler. Had an Aqua Therm for 15 years great boiler until it died, thought I'd be smart and get a better boiler so I bought my Adobe (seton type). Not so good an idea, put up with it now for 4 or 5 years. Just bought an Emypre Elite mostly because there is a dealer within 40 miles. I am in the process of making the switch (planning) . I have a 40 plate exchanger to plumb in. I have my old boiler plumbed just like the diagram at the top of the forum.I plan on putting the exchanger right in the system where the old boiler was. I plan on putting in strainers on the return lines coming from the storage and the new boiler. Do I need to have all of this below the water level of the new boiler as it is non pressure? Are strainers good enough or should I put in filter especially on the storage/house side as there is 1000g plus on that side. I plan on batch burning like i have the last couple of years. Is there a way to shut down the pumps and boiler after the burn other than just a timer as I don't think the water will ever cool down much with that much storage. The forum has been a wealth of information in the past. This will be my last boiler one way or the other, it will either work or my wife will do me in. Thanks for the help.