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Hello, bit of a noob question but would someone be able to help me to understand the pipes coming off our boiler. It's a Grant oil combi boiler, and where the pipes come in is in a room at the front of the house. I am about to box them in but I really wanted to understand what the various pipes...
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9
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623
During an install of new boiler ('old' boiler died after 11-12 years) the system was "drained" but I guess maybe 90% of water was left in the (rather large) underfloor pipe system. What is the best way to tell how much inhibitor should be added in this case? (also taking account that system was...
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2
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273
What is/should be the switching differential in the above, installed in a Heatrae Sadia unvented HW Cylinder, set to 60C. Can't find anything in the spec sheet re this.
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1
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185
Hello. New here. I dont know nothing about boilers or plumbing. Just wondering any idea of cost or what the issue is. 15y old boiler, never had any issues apart from heater exchange smal leak 2y ago, BG changed whole heater exchange and some other small leaks. 2y later, now slow leak at bottom...
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3
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341
Hi All, Looking for a recommendation for a heat only boiler to replace my 30yrs old ideal boiler. Any makes you would recommend and any to avoid? Thanks
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5
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424
Hi, whenever my Gloworm 18r is on even if I leave it on non-stop for 6 hours the flame symbol for the burner never switches off and the radiator icon never stops flashing implying the rads are calling for more heat, even though they're all red hot and have been for hours, is this a fault or just...
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4
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306
Hello Does anyone know if its possible to connect an Opentherm thermostat such as a Nest to a Baxi 800 System boiler. I know its possible with a Baxi 800 Combi but I cannot find any information on achieving this with a system boiler. I wondered if its possible to control the radiator flow...
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19
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7K
Went to a customer today their glow worm Ultracom 24 HE goes to fire up then cuts out turning the heating pump off, then does the same again before firing and running. Occasionally shows the flame is lit on display but flow temp doesn’t go much past 26. Then if you turn off and try again...
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5
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304
Hi Folks, I have a challenge with a Main Eco Elite 30 Combi which is short cycling on the CH. Water works fine. As soon as you have call for heat, the boiler fires up, modulates, but jumps very quickly (about 30 seconds or so from 40'ish all the way to 70, burner disengages putting it the...
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6
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365
I think the last discussion was back in 2021. A few questions to guide any discussion. Which are the cheapest to heat over the year, system or combi in an average 3/4 bed property? Which will be the more reliable and cheapest boiler type to repair over the next 10 years? Is there a better...
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3
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353
I've got a non condensing Glowworm Ultimate with gravity tank and hot Water tank in a 4 bed house. 11 radiators 1 double 1400mm length 1 P+ 1400mm length 2 P+ 400mm length 7 singles 400mm 1 mains shower average water pressure Any recommendations on combi boiler and KW? Boiler budget...
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7
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473
  • Locked
Hello, I have a ferroli falcon 2 boiler (yes it is pretty old). A few days ago the hot water started going hot and cold when running. Monitoring the boiler, the demand light works fine. When the water gets up to temperature every 10 seconds or so, the boiler stops for a fraction of a second...
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3
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289
Heating and hot water is not working. Plenty of heating oil. I have replaced batteries in thermostat and it seems to be working ok, showing flame to call for heat, and the receiver seems to be working ok with green light, but heating is just not firing. I really am not sure what the problem is...
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5
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307
In our sealed Megalo system, when hot water tap is used (say in bathroom shower) the megaflo is taking in some fresh water, I guess to compensate for the water used. The incoming water go via a pressure relief valve [most likely its this one: Heatrae Sadia 8 Bar Pressure Relief Valve -...
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4
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324
I am having a problem with my main 24he boiler where the flame is constantly clicking on and off with the heating and when using hot water. Some times the flame failure light comes on but it ignites again after a few seconds. The plumber has changed a couple of sensors on the boiler and checked...
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6
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396
  • Question
Hello Plumbers I’ve replaced a 540mm high cast iron rad with 740mm high, like for like but still a 20mm valve extension was required. All was ok until I've spotted a v small leak (like 1 drip per hour) between the valve nut and extension piece. So I suspect I just need more PTFE + compound...
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6
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584
Hi need some advice on this odd story, I had a Bosch boiler installed just over 2 years ago by Governments home energy scheme. The company passed all checks, provided certs etc. The government/Green scheme sends 2 other gas boiler engineers to double and triple check things and One was Bosch...
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11
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686
I've got a Glowworm Flexicom 24hx boiler and I'm trying to unplug the installer cartridge in order to wire up the ebus connection inside. From what I've read, it should be possible to do this without opening the boiler, but there is limited access around the boiler and I'm struggling! From the...
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17
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803
Got some quotes for a service, one person has said if I haven't had the burner seal replaced for past 5 years, it should be done (& service price goes up by £55). Boiler installed in 2015 - never had the 'seal' replaced? Is it a necessary requirement just as a matter of course?
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1
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288
Hello, i'm doing some heatloss calculations, going by a fairly old plumbing book. The formula for calculating heatloss would be Surface Area x Temp Diff x U-Value = Heatloss My question is, when calculating the heatloss through a ceiling, so downstairs to upstairs, the temp difference would be...
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4
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366
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