Hi Al, don't know what sort of pump you have on your system, but i've swapped some pumps for the Grundfoss Alpha, others available, and i find that because the pump runs slowly at first and then regulates it's own speed, it seems to help massively with reducing air in the system. Must stop a lot of cavitation. I don't t really understand pump curves, and i don't know the difference between proportional pressure and variable curve, or is it the same thing, but the Alpha is set up out of the box. Saves loads of air bleeding and cold top rads.
Looks like there's always something to do with the plumbing and heating at your house. That said, it's a bit like that here, just installed a plinth heater in the kitchen as the kitchen is cold in the winter but no spare wall space for a traditional radiator!
I have a question for you AL, if you wouldn't mind answering? After doing a full drain on a combi boiler system. When refiling the system, would it be better to open the tap on the filling loop just a smidge and wait for the pressure to build up or is it better to keep opening the tap till it reaches around two bar and keep repressurising until full? I hope this makes sense.
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Hi Al, don't know what sort of pump you have on your system, but i've swapped some pumps for the Grundfoss Alpha, others available, and i find that because the pump runs slowly at first and then regulates it's own speed, it seems to help massively with reducing air in the system. Must stop a lot of cavitation. I don't t really understand pump curves, and i don't know the difference between proportional pressure and variable curve, or is it the same thing, but the Alpha is set up out of the box. Saves loads of air bleeding and cold top rads.
i've got one of those but found that the flow was too slow on proportional and put it back to standard two leds.
Thanks for the info guys.
Alright Al, i suppose if you can feel bothered you could always give it a careful coat of white enamel paint...😂
I could ha ha.
Looks like there's always something to do with the plumbing and heating at your house. That said, it's a bit like that here, just installed a plinth heater in the kitchen as the kitchen is cold in the winter but no spare wall space for a traditional radiator!
Good idea Rob.
I've seen rads with automatic air removers, they replace the cap, but i don't know how effective they are.
I will soon find out.
Does it work with a condensing boiler?
Yes but, any boiler really.
I have a question for you AL, if you wouldn't mind answering? After doing a full drain on a combi boiler system. When refiling the system, would it be better to open the tap on the filling loop just a smidge and wait for the pressure to build up or is it better to keep opening the tap till it reaches around two bar and keep repressurising until full? I hope this makes sense.
I always give it about 2 bar if I am still clearing air from radiators. When I am on the last one, then I keep it down to one and a half bar.
@dereton33 Thankyou brother. Much appreciated.
Paint it white will hardly notice it then.
Good idea or red and make it a feature ha ha.
"This is a really informative plumbing guide! 🔧💦 However, I noticed that your video isn’t optimized for search-keywords in the title, description, and tags can make a huge difference in visibility. If you ever need help boosting your video’s reach, I’d love to share some SEO strategies with you!"
Thanks .