Skip Navigation
Cutting the ‘green crap’ has added £22bn to UK energy bills since 2015
  • I’m not saying it can’t be done. But a larger heat pump and replacing all radiators drives up the cost, there is not always space for a bigger radiator, (and water tank), and while higher flow temperatures are possible, it tend to reduce efficiency. Sometimes it’s just not worth the investment, not helped by the big gap between gas and electricity prices in the UK

  • Cutting the ‘green crap’ has added £22bn to UK energy bills since 2015
  • Something to do with physics. It’s not just about the heat output from a gas boiler vs heat pump. It’s the output from the radiator to the room that matters. For the same output, a gas boiler heats the water to a higher temperature than a heat pump. Which means a radiator gives out more heat to the room. As an extreme example, if it is freezing outside and the heat pump produces a lot of water at 15c, it may have a high thermal output but still wont keep your room warm. If it produces water at 30c, the radiator will transfer some heat to the room, but unless the radiator is very big or the room is well insulated, probably not enough.

  • Cutting the ‘green crap’ has added £22bn to UK energy bills since 2015
  • Link me to a heat pump that produces water for central heating at 70C or more. Typically, flow temperature is closer 40C, which won’t heat the average house unless you increase (possibly double) the size and/or number of radiators. Which is expensive and not always feasible. You can run heat pumps at higher flow temperatures, but that reduces their efficiency. Don’t get me wrong, i think they are great. But successfully retrofitting to old UK housing stock needs expertise that is in short supply.

  • Cutting the ‘green crap’ has added £22bn to UK energy bills since 2015
  • Heat pumps are great when the house is designed for it. Average uk house with shitty insulation and radiators that are unable to heat the room unless the water is really hot - it’s not going to work well.

  • Six UK airports temporarily reintroduce 100ml liquid limit
  • Only six smaller airports have installed the new (bigger, heavier) scanners needed. All bigger airports have missed the deadlines. Not enough space, floor not strong enough etc. And now it appears the new scanners cannot be relied upon.

  • Inside secret government Rwanda training base
  • Not sure how secret this is. There are a few home office tenders with use of force in the description that seem related (supply of aircraft fuselage, catering) and there is also This Which mentions the same location as the tender for catering services

  • (SOLVED) I'm Going Insane. Why Does Mullvad DNS Not Work Underneath My Linux Machine When Every Other DNS Does?
  • Thank you. The downvotes don’t bother me, but the attitude of some of these linux fans does. Skills issues my ass. I’m fairly IT literate. I can find my way around basic unix stuff for work, and don’t care if i have to spend some of the time i get paid for on reading man pages. But at home, my computer just needs to work. Linux is not ready for that, and some of these fanboys just put people off.

  • (SOLVED) I'm Going Insane. Why Does Mullvad DNS Not Work Underneath My Linux Machine When Every Other DNS Does?
  • Did I say I want to keep using windows? I don’t. I want to get off W10 before that becomes an unsupported security risk, and won’t go to W11. All I said, or meant to say, is that I don’t feel comfortable yet to move to Linux, and posts like this don’t make me more confident that Linux is trouble free. It’s not just that I don’t want to spend hours fixing problems, it’s also for the sanity of my family who just need a working computer

  • How does sort by hot work?

    When sorting by hot, I get posts with 1 upvote and no comments near the top. And it is above a post from the same community (nieuws) that has 2 upvotes. Seems to be broken.

    8
    tesco and sainsburys hit with technical issues

    cross-posted from: https://infosec.pub/post/9811127

    > Two of the UK's biggest supermarket chains, Tesco and Sainsbury's, were hit with technical issues on Saturday; Sainsbury's blames a software update (Bloomberg.com) > > > Bloomberg.com: > Two of the UK's biggest supermarket chains, Tesco and Sainsbury's, were hit with technical issues on Saturday; Sainsbury's blames a software update  —  Two of the UK's biggest supermarket chains - Tesco and Sainsbury's - were hit with technical issues on Saturday. >

    15
    [NLD] my first anduril light (TS10 4000k)

    My first anduril light, and first small light. Really happy with it. Thanks to you wonderful people, and the ones we left behind on Reddit, I ditched the cheap supermarket zoomies and got my first decent light from Zak’s list, a wowtac a2s. Good recommendation, great light but angled lights aren’t my favourite. Next one was an fc11. Also from zak’s list and another solid recommendation. Love it, just wish it had better runtime and lower moonlight. I use it mainly for dog walking in woods and fields, and it is good for that purpose. This TS10 fixes my moonlight issue for indoor use and is easily bright enough on full to be my backup if the FC11 ever fails me while out.

    4
    InitialsDiceBearhttps://github.com/dicebear/dicebearhttps://creativecommons.org/publicdomain/zero/1.0/„Initials” (https://github.com/dicebear/dicebear) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)DO
    Docus @lemmy.world
    Posts 3
    Comments 146