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I have a question on Radiator Balancing. Can balancing radiators cause a boiler to kettle if the flow is restricted through each radiator by too much? Additionally if a bypass valve is closed by too much can casue the same effect. My understanding is that if a bypass is open by too much then...

Thanks agile for your response. Yes window definitely bigger than that. I have calculated currently as about 1.9 kw in total for the radiators. Thinking about replacing 1 radiator for double still to get additional output, don't want to go too far. Online calculators say between 3 and...

Having received loads of useful advice before on here, I thought I would ask again. I would be interested to know what size of radiators one would advise for the following room (living Room): L = 5.4m, W=4.5m, H=2.4m. Room Characteristics: Solid concrete floor carpeted Lounge...

45yearsagasman thanks for your input. However what is the difference between X200 and boiler silencers. The system has 2 x 2 port valves.

Petertheplumber thanks for your info. I currently have X200 circulating. So you suggest adding something like x400 for a few weeks and then flushing the system. add X100 and X200 again and see how it goes. A quick question about the suprima. I had the new PCB fitted over a year ago, which...

My boiler has very recently started Kettling. The is Boiler a Suprima 40L Connected to 10 Radiators (3 Bedroom Radiators with TRVs) Combined F+E (no Vent Pipe) Unvented Cylinder Manual Bypass Gate Valve open 1 turn Pump Set to 2 Boiler Stat at Max The kettling started after draining...

Thanks for your reply, however I have tried the match trick and didn't get a popping sounds, as the air was expelled from the radiators. I think the system needs dosing with inhibitor, so I will do that first and see it inproves the situation!

I am wondering if someone can provide some advice on gurgling noise in radiators and bleeding air from CH System. I find that I am able to bleed air out of my CH system on a regular basis (1 radiator and system bleed points). I can also hear gurgling noise in a couple of radiators with TRVs...

Is this what I need: http://www.amazon.co.uk/Digital-Thermometer-Thermocouple-Range-Degree/dp/B002YUTOXS/ref=cm_cr_pr_product_top

Agile thanks for the reply. If this isn't the right can you recommend where may be able to get hold of what is required

I am planning on Balancing my CH System as it is currently not balanced. I have read the FAQ and It seems straight forward. I am looking to something to measure the temp quickly, but without spending a fortune. Are the following items both suitable to do the job: 1)...

Agile thanks for your response. What I want to know is will a manual bypass which is open only have a turn have any damaging effects on the system. Also would a boiler cycle more if a bypass was open more. I would assume more heat would be returned to the boiler return quicker. Thanks for...

I currently have a bath with separate hot and cold taps. I am looking to fit a shower for use with the bath. The dhw is supplied from an unvented cylinder. From what I gather I have 2 options. Either Leave the current taps as they are and tee of the hot and cold supply to the taps and into a...

Thanks everyone for the info. Agile essentially are you saying that the only time the bypass should be providing a minimum flow to the boiler is when all valves have closed down. Or should a flow be always present through the bypass. ie for the case of a ABV it should be set only to allow...

Thanks for your replies. I would like to understand fully how my central heating system works. Would I be right in thinking that the more that a manual bypass is opened the more heat is added to the return circuit to the boiler. Would I be therefore right in assuming that the boiler would...

What are the advantages of fitting an Auto Bypass Vlave in place of a Manual Bypass valve?

Agile, Thanks for the response. Boiler is 8 years old. The board appears to be Version 1. It is probably worth fixing now as gauranteed it will fail at the start of next winter when it is much more difficult to get someone to do it. Agile, what areas do you cover? I am sure you...

Before winter I was having almost daily lock out problems on my suprima boiler. However before I could get someone in they totally stopped. In the past weeks they have started again, very infrequently. I was planning to get the boiler serviced anyway, so will let someone have a look at it...

JohnD and echoes thanks for your replies. The system is 8 years old. I have owned the house for 3 yrs. The previous owner never had the boiler serviced, so I would assume that the tank has been unchecked for 8 years. Is that reasonable time in which this might occur. I don't have a...

I have a question about sludge in F/E Tanks. The reason I am asking is that I have brown sludge build up on the walls of my F/E tank. Is it normal for sludge to form over time? or is it caused by a system problem? I am not sure that there is sludge in the system or not. I did drained...