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Cheers ALEC1. I'll have a word with the installer. Can go away from the computer enlightened. Ian.

Ah...... So presumably, if it is fairly warm outside, say 14 degrees, the boiler will run "cool". If it is minus 5 outside, the boiler will run hotter? I'll have a word with the installer, but is this an automatic way of...... Turning boiler flow temperature down in summer, up in winter...

Hi All. Thanks for all previous advice. I'm finally replacing my old Glowworm Spacesaver 40B with a Vaillant Combi. Can't remember the exact model number but...... I've downloaded their pdf instruction manual and I notice that as well as being able to change the DHW temperature, I can...

Hi All again. A brief outline......Open vented, fully pumped system. Zone vales for DHW and Heating. My aging Glowworm Spacesaver 40B (Blue knob gas valve jobbie) has started kettling inside (I think) due to having years of accumulated deposits inside. X400 as suggested on here improved...

It's bang centre in the top of the HE. Ian.

Hi All again. As part of a decorate / re-plumb job in my house, my boiler-room pipework is going to be tidied up. Move zone valves / pump etc. As the system is fully pumped, the water enters the boiler at the bottom right and exits top left as per the fitting instructions. As I'm...

Hi all again...... Thanks for all previous advice. Following a bit of a reconfiguration of pipework...... Great advice from here. Heating has been far better ......then...... Noticed a quiet tinkling rattling sound. After pressing my ear to one of the actuators, I believe it is coming...

Just a quick question. Which way of adding X200 is best? The "Concentrate gel" injected ito a radiator with a mastic gun, (Which I've never used before). Close all other radiators then pump round. or the traditional 1 Litre liquid poured into a partially drained system? (I was going...

Well, I've read up on Sentinel X200 and I'll try to get some tomorrow. Hopefully, what I plan to do is...... Isolate all radiators, Add the X200 then run it round the DHW circuit. If it does have an "instant" effect, I can gradually increase the boiler temperature until the kettling just...

45yearsagasman. Thanks for the advice. From memory, my HE is similar to this: http://www.heating-parts.co.uk/Product.asp?Prd=009287 So I presume you mean the 2 gaskets between the "finned bit" and the and tanks. I'll avoid harsh chemicals then. Is the "silencer" a snake oil type thing or...

Hi All Again. Brief outline. Old Glowworm 40B Can't remember if it's Fuelsaver of Spacesaver. Cast Iron heat exchanger. 6 radiators. Grundfoss pump. Converted from Gravity DHW to Fully pumped. Water nice & clean. (Dosed every 2 years with X100) THANK YOU ALL for the previous advice...

Lets hope not ! Seems to be the way of things these days. Thanks for the advice, I'll keep an eye on the old girl and see how she behaves. Ian.

OK, I understand. I'll see if it starts to fail on a regular basis. If so, I'll call somebody out. Is there somebody trustworthy in the Sheffield area who you people would recommend? It's taken me a few years to establish connections with tradesmen (I'm one myself) that I can trust &...

I'm not RGI. If I was, I wouldn't need this advice. I didn't know if they'd still be teaching people about such old boilers. People just seem to swap in Combis. Just thought some time served people might be able to help. There are no air / gas / flameproof seals on this boiler, Or, by...

Can't find that forum, do you have a direct link please?

There are no combustion seals on this boiler. It's circa 1985. Any idea if the top part of the pilot burner is adjustable for aim?

I have an old Glowworm 40B Space Saver. The pilot light went out for the first time in years today. It re-lit after a couple of attempts but I notice the "Y" shaped flame...... (One side lights main burner, one side heats thermocouple)...... Was not aimed very well at the thermocouple...

Yes. :?

Non plumber here. The reason the cistern cant be lifted much higher is because the flush button is on the top. You'd have to take a step-ladder into the toilet to reach it! :D

Yes, you're all correct. Pretty much everything I do, I try to do Properly so I only do it once. On this occasion, I thought I could just improve a bad installation. I admit I was trying to save time & money. I'll just have to bite the bullet. Carpets & floors up, new pipes from loft...