I dont Know if I can be of any help to you but I do have access to most European (mainland) specialists and would be prepared to help anyone who is having difficulties with German outlets Voluntarily of course as long as it is not 100 per day!. Also 45mm and 70mm diameter copper tubing is available in the U.K. which if I have been rightly informed is not available for boilers in the U.S.
Regards Bert ------------------------- Bert & Edmunda [EMAIL PROTECTED]