I am refurbishing an Eko 60 that is roughly 13 years old. I would like to replace the Wilo RS 25/6-3 which is 220v with a 120v unit. Some time ago (2015) a member indicated he had bought a 120v bolt on replacement from SupplyHouse but didn't indicate the model number. I contacted SH and the guy couldn't help. He suggested contacting Wilo directly. So I did, but got shuffled around and no answer. Anybody know? Its on a Lattomat 21 63oC. I have also bought new refractory and new controller.