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Since our central heating system was upgraded in October we have noticed a singing noise in the house when the water circulating pump switches on. It is a new Grundfos UPS2 15-50/60 pump with 3 speeds. Reducing the speed reduces the noise but it doesn't go away, and we need to use the maximum...

I have previously asked about materials for loft insulation and have come down in favour of insulation roll, loft legs and standard loft board. I want to increase my loft insulation from 4” glass fibre to 10” and retain access and storage using wickes 7” loft legs and standard loft boards...

We have moved into a 1950's house with minimal insulation. There is a conventional loft space between a hipped roof and plasterboard ceiling with 4” rafters. There is 4” mineral wool insulation between the rafters, which I want to increase by about another 6 inches, either using Celotex, Steico...

Thank you. Eventually we plan an extension totalling 40 or 50% of the size of the house as it is, but it will still be mainly the two of us living there. On the other hand there is very little insulation so we may actually be able to reduce the bills by adding cavity insulation and more loft...

To Stonehouse: No, seriously, we considered it and we are just not the Rayburn type. Even the previous owners had a second cooker installed.

We have just moved in to a 1950's house which has a central heating system previously heated by a coal fired Rayburn which has been removed. We need to have a new boiler installed, but this may have to be in a temporary location as we hope to have the whole house remodelled and extended. It...

Yes, I posted this 6 years ago! I appreciate the effort you made, and it might have been useful, but I am now the proud owner of an Intergas open vent boiler, having read the recommendations for it on this and other forums. And to LUNAT, thank you for the safety advice, there is no way I will...

Thanks but you have gone a bit fast for me. Is the "sensor in the block" the same as an in line stat? If it is then I think I get it. Something integral with the boiler that measures the water temp as opposed to the air temp can ensure the boiler is only on when the water is cold enough to allow...

Are you saying the Intergas has an advantage? If so I will go for it. How do I get an in-line stat? Will my Heating Engineer fit this or does the Intergas have one? I am thinking of an OV by the way.

Thank you for pointing me to that.I am using the below, which may be different as it is described as "compact". It says that the boilers modulate down by a third, which may apply to the bigger ones as well, so they may not all go down to the same value...

I have to choose a new gas boiler for a very small 3 bed terraced centrally heated house. Full double glazing and 6” loft insulation. I have a Y plan system. I posted with various questions about this system recently but have got to the main question now. I have been warned about oversized...

Presumably this is only hot in Winter?

misterdubya What did you replace? A magna clean or a fernox?

My total floor area would be about 35 sq m per floor, ie 70. There is a reference to boiler requirements in floor areas above 50 sq m in sec 2.3b but I asssume my new boiler will satisfy that. Am trying to find my way around the regs on line now. The 2002 differentiate between Sec 1, design and...

Ah, why did I put Aberdeen when I joined? Thanks for replying, will go over it in detail soon

I need to replace a Glow Worm Fuel Saver B that heats my small 3 bed terrace house, and add a bathroom radiator. I am also interested in converting from an open vent system to a sealed system, although I definitely do not want a combi. I would like to use an Intergas boiler, My second...

Glow-worm fuelsaver 30 B Hello I have had some problems with the pilot light going out on my boiler. I have remedied it twice by replacing the thermo-couple but the first replacement lasted two years and second lasted only 4 months and now I am not even sure if the thermocouples were...

OK, thank you gas4you. I think I have to decide what to do next before I ask any more questions, ask t.s. advice from manufacturers, replace parts, descale or update boiler for a condenser maybe. And in the meantime I relit the boiler yesterday and it has inexplicably remained alight up to...

I changed the thermocouple about two years ago with a "universal" part. I can't remember what the symptoms were at the time, but I think it was more like no pilot at all, whereas now I can sometimes light it. If you propose changing it again then I'll give it a go, is there any way of verifying...

Hmmmmmmmmm... I just managed to light the pilot again and decided not to turn on the main supply and see what happened, and after a few minutes the pilot went out again. Is it theoretically possible for there to be so much scale in a boiler that just the heat from the pilot is enough to...