I had posted a while ago about a sticking handle (to clean the heat exchangers) on my EKO 40 super. I'm finally on vacation, and I pulled of the back panel of the boiler with the intent to clean the HE by hand, but I've run into a problem. Behind the back panel, the steel is welded to the boiler. There is no way to get to the tubulators that I can see, because it appears the firebox and tubulators are both encased in a single box. Any ideas?