I'm hoping some of you are still watching this thread and could help me out here. My boiler has been idling ALOT lately, like it's not shedding the BTUs as it should. I know we all know my current plumbing and my current HX is less than ideal. But I'm at a loss because it seems the boiler is firing great but the storage just isn't taking it. I mean even worse then before. I pulled the screen on my boiler side strainer and it was, to my amazement, perfectly clean. I didn't pull the storage screen though. I'm getting a delta t of 40°+ on the boiler side and only 10°-15° on the storage. Boiler side pump on speed 2 and storage on speed 3. Boiler is pushing 185 as I'm writing and storage is at 140s. Storage should be climbing pretty fast right now but isn't. Should i pull the storage screen and see if there's blockage that slowing flow or what should I check. I'm just trying to get through the rest of the season at this point.