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  1. vulcancontinental

    Weather compensation sensor with Hive on new combi boiler

    Don't use Hive apparently, their OT doesn't control DHW temp. I haven't first hand knowledge on this but it was passed to me. EPH are good for OT but I haven't used it with WC, I think the boiler WC takes preference. I use WC and time it for two settings, comfort and setback. Use a simple...
  2. vulcancontinental

    Boiler Service cost - unresonabley high? Conflicted.

    Read the manual, it can often be found in there.
  3. vulcancontinental

    EvoHome + Opentherm certified boilers

    I work for Vokera. I think it's 86% of what we sell are combination boilers so brining in the OT for system boilers wasn't a starter for us although we sell it abroad. DHW on a combi on our boilers has to be from the control, the selector is disabled on our combi boilers, not on all other...
  4. vulcancontinental

    EvoHome + Opentherm certified boilers

    I work for a boiler manufacturer that when tested the evohome did not work with smoothly as the boiler requires an instruction from Evo to adjust DHW temp which it couldn't do however I could answer some other of your questions. Yes, it sends and adjusts flow temp plus also return, DHW , and...
  5. vulcancontinental

    New Combi Boiler Choice

    I work for Vokèra as a technical trainer so am partisan however since it and the slightly lower modulating Synergy boiler were launched about a year ago we have people asking to come and see them. Till September warranties are extended as part of a promotion, 12 years on the Pinnacle and 10 on...
  6. vulcancontinental

    How far out of horizontal can a flue be?

    He cut the collar because he forgot to put it on and couldn't be bothered the disassemble it I reckon.
  7. vulcancontinental

    System boiler recommendations (hot water priority ~5kW heatloss)

    If you are looking at a heat pump long term or sooner,with or without grant the Riello NXHM (R32) is tried and trusted or smaller, the Carrier AquaSnap (R290). If you want a hybrid and keep your boiler, no grant at the moment, then either will communicate with the Vokèra Pinnacle or Synergy...
  8. vulcancontinental

    System boiler recommendations (hot water priority ~5kW heatloss)

    They can but not always, so much depends on the boiler. I ran trials at home on my system and found around a 1% advantage in both together but comfort was smoother with WC alone on a simple timer switching from a comfort temperature to a setback temperature overnight or when we're both out. If...
  9. vulcancontinental

    System boiler recommendations (hot water priority ~5kW heatloss)

    The heat loss is quite low so you'll want a boiler that can modulate low to avoid as much cycling as possible. Check whether the boiler can be range rated (restrict its maximum heating output) and how low can it modulate that output too. Not all boilers can use WC and OpenTherm together...
  10. vulcancontinental

    Ideal Boilers

    I think you were looking at the 35kW Pinnacle, that's fine if you have the cold supply to use 35kW or like water hotter than necessary but otherwise choose a lower output, 25 or 30kW. Don't worry about heating output as you know they modulate lower than almost everything on the market. I'd also...
  11. vulcancontinental

    Ideal Boilers

    Oh, I work for them as well as being a fan but I just answer questions, don't try to convince.
  12. vulcancontinental

    Ideal Boilers

    Praise indeed, thank you.
  13. vulcancontinental

    Boiler kw advice

    All Vokera combi models
  14. vulcancontinental

    Boiler kw advice

    If the boiler is going in the same place the delay will nearly always be the same unless you use Smart preheat, not standard preheat. (smart preheat is available in the winter and uses heat when the boiler turns off from radiators to pre-warm the hot water. This is using heat you've already paid...
  15. vulcancontinental

    New Radiators first or Boiler?

    If your fan is working why do you need a new one? Why is the boiler one of the worst ones, did the engineer give a reason? It's a sod to service that's true but if it's working he possibly doesn't like the idea of actually stripping the boiler and servicing it. A fixed price repair from Vokera...
  16. vulcancontinental

    Size of gas pipe for new boiler (Ed.)

    I missed the 8m of 15mm.
  17. vulcancontinental

    Size of gas pipe for new boiler (Ed.)

    Before you can say ditch the combi keep the old pipe it would be useful to know the output of the proposed system or heat only boiler the combi would be ditched for. System and heat only tend to be higher outputs, 20kW's possibly and the pipe needs to be sized for the boiler input irrespective...
  18. vulcancontinental

    Recommendation for a new boiler.

    Where are you in the country?
  19. vulcancontinental

    Vokera Linea 28 Error Code 04

    Interesting, ring 0330 236 8630 option 4 then the option for customer service see if you can get a fixed price repair.
  20. vulcancontinental

    Flow temp vs power rating

    Not thoought about it before but some boilers allow adjustment of the hysteresis.
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