I suspect the pump on our combi-boiler may have had it (cold rads. downstairs - system flushed OK recently). I will be removing the pump to check it out per other posts on the forum, but have a couple of questions should it need replaced.
It is a Grundfoss UPS 15-60 AO (fitted with auto-vent) which retail at £120 - £140 (e-bay) There are other brands that retail at 1/3 the price that meet the spec. but don't have a fitting for the auto-vent.
1. Are the cheaper pumps good value or false economy ?
2. Would not having the auto-vent creat problems (the boiler is at the highest point in the system).
Thanks
It is a Grundfoss UPS 15-60 AO (fitted with auto-vent) which retail at £120 - £140 (e-bay) There are other brands that retail at 1/3 the price that meet the spec. but don't have a fitting for the auto-vent.
1. Are the cheaper pumps good value or false economy ?
2. Would not having the auto-vent creat problems (the boiler is at the highest point in the system).
Thanks