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I have a Secondary HW Circulation Pump - Grundfos UPS 15-50 B 130 Bronze Selectric, the pump has failed. I also have a spare brand new Non Bronze UPS 15-50 130 in the garage. Can I replace the Bronze Pump Head with the Head of the Non Bronze ? Mechanically / electrically it’s a straight swap...

Hi, I have the ecoTEC plus 630 (VU 306/5-5 R2). I have the VR65 for DHW, but am using a NEST for UFH controls with the Boiler Flow set at 55 degrees. As flow temp increases towards 55, modulation increase (goes lower) but even when at 55 flow (d.40) for some time, the boiler is still running...

Hi all, I have a pair of outside lights on the house exterior Brick walls either side of my drive at first floor level. One lights is 5 bricks lower in height than the other light. I’ve replaced the lights with Up/Down wall lights and its now more obvious that they are mounted different heights...

I have an existing 20+ year old UFH install but don’t have the original designs or design Flow Rates per circuit. I have measured up the rooms and using thermal camera can see the circuit spacing is approx 150mm in Spiral layout. I’ve flushed all the loops and cleaned all the flow meters, but...

Just checked the Gas Rate on my boilers in a) House and b) Annex. The House is a System Boiler and Annex is a Combi, I've checked them both on CH over 120 sec, and I know I need to do the Combi with HW demand rather than CH, but came out with a high value on the Combi CH so I'm booking in a...

Hi all, I know there are many debates about this, but I'd like to gain the practical experience of those running Wet Underfloor Heating. Do you find it most economic to Heat 24x7 or have booting Temperature for just some parts of the day ? I have aprox 250SqM of underfloor heating across 8 x...