Recent content by baldchris

Thanks John - but this is exactly the issue that I found. The pump you post can't be purchased anymore - in spite of my best efforts. I know someone with the pump you posted, and I tried to buy the same. However, that is the old version CP50.1. All that is available now is the CP50.2 and...

I just thought that I would follow up on this issue, as I received a lot of help and I always like to know the outcome. I did replace the pump, I used a was a 'Circulating Pumps CP50 High Efficiency Central Heating Pump', because it allowed me to run the pump at a low constant speed. All of...

Brilliant - thanks (y)

I'm trying to purchase a variable speed pump to replace my current Wilo Smart 25/4-130 pump (here). If I was to stick with Wilo (which seem to be reliable and good value), then I seem to have a couple of choices - either the Wilo Yonos Pico 25/1-5 (around £100), or the Wilo 25/1-4 (around...

I like neat, simple solutions - maybe it's a sign of age. I will look into this - it's not something I can do straight away, as access is now awkward, but we are looking to move the heatloss radiator soon, to a better location (removing almost all horizontal travel), so that will be the prime...

By process of elimination, I've tried to work out exactly which pump you're recommending - I've filtered here: https://www.tradepumps.com/manufacturers/wilo-pumps/wilo-yonos-pico-maxo?discharge_size=2315&inline_length=379&product_family=2964 and of the 2 pumps returned, only 1 is 4M - so is this...

@oldbutnotdead You're right about the pump - it was recommended that it was added when the plumber installed the system as there was such a long horizontal run after the initial rise from the woodburner. That is a good spot - but I would be nervous to remove the pump altogether. The valve is...

Ok - as this was just a speculative suggestion on his part, I hold off from this.

Yes - the venting is through the thermal store vent. (y)

I didn't start the fire yesterday and it was too cold to get the pump running - it's a high temp stat, so only runs in the range 50 - 95 degrees. I've started it today and even at 50 degrees, the cycling occurs. For now, I've set the stat to 85 degrees simply to delay/reduce the flow to the...

Thanks for that explanation! This is where it becomes unfortunate... I think we used to have this dedicated cold feed, but about 3-4 years ago, we asked another plumber to help us try to solve the cycling over issue. He identified that the cold feed was likely superfluous and could be...

I've been trying to think this through today - but, apologies, I can't work out exactly what you mean and where to put the tee. Are you able to clarify for me? Can I ask why you think that will stop the pumping over?

Is it worth trying to lower the ballcock to lower the water level in the f&e tank - as mentioned by @oldbutnotdead earlier in the thread? What's the best way to do this - ideally I'd just have an adjustable part 2 ball valve like this one: https://www.ebay.co.uk/itm/385299677704 But it's never...

I'm not sure that was my picture - was it the one posted by @Johntheo5 ? I checked anyway - its pointing upwards / with the flow in the direction of the thermal store.

@cross thread Initially, I simply put the palm of my hand under the thermal store expansion pipe and it had no impact and the cycling continued. I've just tried with the glass of water suggested by @Johntheo5 , and it also had no impact, the cycling continued. It is very hard to see anything...