I have just had to change out the pump due at my holiday home due to a leak resulting in it burning out the bearing & impeller. Damn shame as I put in a really good one Grundfos 25-80 and the system is only 16 rads on a 120 BTU oil burner and it is all only 3 years old. A cheap less powerful one (Salmson) has been put in as it was all that could got hold of locally (Rural Co Kerry, reland) on the quick fro folks renting it. Any ideas on whether the grundfos can be renovated or what make model would you recommend. I do not want to leave the cheap one on to long and I could keep it there as a spare.