I have a Laddomat 21G(Grundfoss) that was originally rated for 75KW & has been rerated to 45KW. I have a 32KW Atmos boiler that can easily outrun this & am wondering why. I would like my tank to charge faster & this will require more flow through the Lado. Does it seem as though the Lado is defective? It sure seems to run real slow. Keep in mind this is 45KW rating based on 50HZ & I'm running it at 60HZ so it should have close to 20 percent greater output. I can't ask any more of the Atmos as it's overrunning the Lado practically in a high idle condition. If I can't sort this I will probably need to buy a 21-60, I shouldn't need a 60KW Lado for a 32KW boiler though. I'd like to be able to open up the air on the Atmos & let it heat instead of running it with the Samson all the way closed. My draft is set right on the money per Atmos. Any ideas why the low pump output?, Randy
