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Busy here, innit. Right, we've converted the feed and vent to a combined F&E and it all works jubbly. No pumping over and tank stays cold. However, refilling the system took ages, as ChrisH (or was it R?) warned a while ago, due to air and water on a collision course up the one remaining...

Do you have to be OFTEC registered to bleed an airlocked oil line? What would be the consequences of a competent (small C) general plumber doing the job? Could someone point me to the official wording? I've spent several hours surfing for the information (now seeing double at ODPM's Part J...

Must you be CORGI registered to hitch a kitchen hob to a gas bottle?

What happens if you try to run a diesel car on 28 sec central heating oil (apart from a spell in Wormwood Scrubs)?

Ran out of oil last night. Total Butler (aka Total Blunder) hadn't informed us that the "Signalman" oil level monitor, for which we pay them good money, was not working. They were apologetic. Surprise, surprise, boiler wouldn't fire when tank was refilled. Serious airlock in oil pipe took me...

Starting a new thread as this had veered off-topic. Are you serious? Where would expansion be taken up - in the feed tank? What happens if the system boils? What we have (starting from boiler flow) is boiler - pump - auto bypass - MV - vent - HW cylinder - feed - boiler. Note vent is on...

Problem: Mira Sport 10.8Kw shower suddenly packed up. Symptoms: No lights (not even "standby"), no action. Nothing. 240V showing as far as thermal cutout above heater tank. Block circuit diagram http://www.mirashowers.com/onlinecatalog/pdf/p3279_2a.pdf doesn't show enough detail to work...

Guys Kevplumb has invited everyone to pitch in with adding to /polishing his sticky definitions. I've posted one about flues and wondered if you'd take a look. Longer term, is there a better mechanism for discussing sticky content? Or would doing so publicly be an education in itself? Paul

You're spending too much time on that forum for bigots and losers. Come back to where you belong.

In my last post on thermostats (now buried) the question of thermo-proportional setting arose, courtesy CH4. Danfoss describe it as an "energy saving" feature where the boiler is told to fire in cycles (3 or 6), thereby keeping the room at a more constant temperature. But what exactly is...

Last year I fitted a Danfoss RET B-LS room thermostat. Since then it seems to have deteriorated. The hysteresis is so small that it switches itself off before the boiler has lit. Worse, it sometimes turns off a few seconds after the boiler has fired, followed by a continual round of...

... a CH system controlled by the domestic PC. A device where you could set the temperature of every zone at any time of day or night, using a friendly interface on the home computer. It would probably involve some kind of flash card which you can program as necessary. You'd also need a few...

Why is there no marketplace for swaps and secondhand goods on this site? Or is there something similar elsewhere? For instance, I am soon to liberate a Boulter balanced flue that would give many more years of active service. New, they cost around £150. What a dreadful waste if it ends up in...

Morning all Trying to design a flue to fit between an existing boiler and chimney stack. Does anyone have a formula for calculating the offset achieved by two elbows of given angle separated by a pipe of given length? Also the height of the three items together. There was a time when I...

Conventional open-vented CH system. Within half an hour or so of the system firing up, the header tank in the loft gets hot to the point of steaming. Haven't yet stood there long enough to see whether it's regurgitating up the downpipe or being heated, cappucino-style, by steam from the vent...

Evening all Plagued by power cuts in our rural office, we recently bought a cheapo 2.2Kw generator from Aldi to keep the small computer network running. It works fine (although we're probably taking a risk with what must be a very lumpy output). It's got me thinking. As I understand it...

What I'm after is very simple but can I find the bits? No. Our waist-level balanced flue belches out over the patio area; either it goes or the wife will. I'm taking the tougher option and changing to a conventional arrangement using existing chimney. Boiler is a Boulter Camray 65/90 (oil)...

Greetings all Trying to replace the flow control washer on an Aqualisa 430 mixer valve. http://www.aqualisa.co.uk/80256D50003105DE/httpSpare_Parts_List?ReadForm&product=4CF7C93AA982D52580256D63003BC2D3&section=customer_services Problem 1: Can't get the shaft out so there's only a tiny...

A question for you sages: In summer, which is more economical / efficient / desirable: HW from the boiler (oil) or from an immersion heater (no off-peak)? Similarly if there was an off-peak meter. Thanks

Oh dear. I neglect the site for a few month and what happens? It turns into a primary school playgound. Who is this Scouse git Traineegasman? Actually I find him quite funny at times but there is an underlying attitude that is far from droll. It symbolises a lot that’s wrong with his...