Big Neil

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About Big Neil

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  1. Big Neil

    Sunpower/Panasonic/LG

    what did you favor when you were looking? I assume you were going to do it all yourself, so was if based largely on cost per watt?
  2. Big Neil

    Sunpower/Panasonic/LG

    Wow, they look nice, and cheap as well, certainly in comparison to others. I can't see the % efficiency figures on there anywhere. Probably missed them but do you know the figure by chance? IN either case it would have to be pretty decent i guess. Just looking at the LG cost I found that's 0.7 W per £ more.
  3. Big Neil

    Panel Installation

    So irrespective the actual mounting method, is it broadly speaking; Put mounting kit on roof, Feed a wire from back of panel through the vapor membrane, secure the panel, connect them all up and away you go... (aside obviously from the electrical functioning of it all, i just mean to get the panels on the roof). I shall look at YouTube later of course, but i tend to find it doesn't answer questions in a basic enough fashion most of the time.
  4. Big Neil

    Sunpower/Panasonic/LG

    So just thought i'd take a peak at various panels just to knob up on specs and sizes and what not. I know there are other makes of course, but i found 3 quite similarly spec'd examples from the three manufcaturers in the thread title so thought i'd use them as a baseline for now. Several questions. Has anyone been in a position of having to choose between these three manufacturers and gone with one? What were your reasons? Given that they all Provide notionally identical warranties on product and power, is the small variance in % efficiency a bother to anyone? Why is it that I can easily find a price (£204 on first pass) for a LG NeON® 2 Black panel of 320WP, (£252.25) for a Panasonic HIT KURO N325K but nothing for the equivalent Sunpower (X21)? Do alternative, much cheaper panels, provide a similar cost per unit generated, when one also considers the efficiency difference, so lets say for example a 250 watt panel with say 18% efficiency? Anyone considered Viridian as an alternative to these?
  5. Big Neil

    UFH Water Flow

    Booom. That's a win for the day - small maybe but i'm counting it. Needed that. Thanks to everyone. @joe90 i'll be on to you the next time i need a diagram for something. If in return anyone wants to know anything about kebab shops in Salford, the Lotus Elise between 1995 and 2001 or the pitfalls of women from the Stoke region... I'm your Man!
  6. Big Neil

    UFH Water Flow

    ahhh, so the coil looking thingey going into the DWH tank is a loop of pipe aswell.. good stuff. So You can supplement that with a heating element taking excess PV generation (or simply straight from the mains) if required to be hotter. So now i'm a fully qualified heating engineer who wants me to do their whole installation gratis??
  7. Big Neil

    UFH Water Flow

    got it (maybe) - sealed loop. Combined a bit of corssover from my other thread about heat batteries. So the ASHP heats a closed loop filled with antifreeze to give the heating. It's not actually water which goes through those loops no?
  8. Big Neil

    UFH Water Flow

    To be honest Mr 90 i prefer it to the amateur scribble nick grabbed. I like the personal touch. One thing I don't quite get is that if the cold feed from the mains goes into the hot water tank then out to the ASHP plus to the UFH via the diverter valve, how the return from the UFH doesn't get mixed up with the water one might otherwise drink/shower in. Have i read something wrong somewhere Or should i be reading that coil looking think inside the DHW tank as a sealed loop?
  9. Big Neil

    UFH Water Flow

    A diagram would be very helpful please sir, I just want to get an idea in my head, understand that, then when I take more specific advice I can ammend my understanding much more easily
  10. Big Neil

    UFH Water Flow

    Riiiiiiggght - Thanks Mr 90. I still need to get to a house mid-build, where I can actually see a setup involving ASHP and wet UFH in action. I'm terrible it seems with plumbing stuff, understanding exactly how everything is routed, when it comes to the hot water generation.
  11. Big Neil

    UFH Water Flow

    Its the same tank in either case is it, not one for hot water and another for the UFH. Have i read it correctly that the UFH has a hot and cold feed to mix down to the correct temp?
  12. Big Neil

    Solar Store - heat battery

    I will look at @Stones blog during the day if I get a moment. Thanks
  13. Big Neil

    UFH Water Flow

    riiiiiiiigghttttt - so in the case where one has a 'monoblock ASHP' mated to a cylinder with supplementary Coil to utilise excess PV generation, where that cylinder also feeds the rest of the hot water system, one of the feeds coming FROM the cylinder should be into a buffer tank for the UFH? Or does it all just go back into the cylinder anyway as it's all drinkable?
  14. Big Neil

    Solar Store - heat battery

    If the same as the last time i managed the compliance team at Carillion, temps are a pass at above 50 degrees for the hot and below 20 degrees for the cold. Could be a bit out of date though.
  15. Big Neil

    UFH Water Flow

    having a bit of a blonde moment - I'm sure it'll seem obvious when someone clarifies for me but; When the hot water goes into the UFH manifold to be distributed to the various circuits so as to flow around them, once circulated and back to the manifold, where does it then go? Does it just feed into the drains?