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Energy Efficient & Sustainable Design Concepts

198 topics in this forum

  1. Cost of airtightness retrofit?

    By anonymous,
    • 19 replies
    • 2.1k views

  2. Net zero retrofit requirements

    By ColdHouse,
    • 4 replies
    • 966 views

  3. Can anyone advise on MVHR systems please?

    By Cognis0,
    • 24 replies
    • 2.9k views

  4. Rainwater Harvesting - solutions from RainWater Harvesting Ltd 1 2

    By Dave and Helen,
    • 29 replies
    • 2.4k views

  5. Non PassivHaus new homes - Space heating requirements? 1 2

    By anonymous,
    • 28 replies
    • 2.4k views

  6. UK homes losing heat up to three times faster than European neighbours

    By Radian,
    • 13 replies
    • 1k views

  7. MVHR before air tightness?

    By anonymous,
    • 1 reply
    • 583 views

  8. Are energy efficient LEDs de-energising you?!

    By Adsibob,
    • 7 replies
    • 1.1k views

  9. Effect on insulation / stable temps on sleeping patterns.

    By LaCurandera,
    • 11 replies
    • 1.2k views

  10. Got a SAP, what now? 1 2

    By HughF,
    • 27 replies
    • 2.2k views

  11. Class A, B, C Hot water cylinder in Passivhaus

    By puntloos,
    • 13 replies
    • 1.1k views

  12. External air ventilation for log burner

    By SBMS,
    • 23 replies
    • 4.3k views

  13. Airtightness on stable conversion

    By pstunt,
    • 3 replies
    • 639 views

  14. Airtightness test recommendation in NI

    By cwr,
    • 3 replies
    • 981 views

  15. One-line idiots guide to the various heat calculation systems

    By Alan Ambrose,
    • 14 replies
    • 2.3k views

  16. Airtightness vs bugs

    By puntloos,
    • 12 replies
    • 1.3k views

  17. SAP delays ahead

    By Canski,
    • 3 replies
    • 794 views

  18. a sustainable alternative to traditional cities?

    By Adsibob,   
    • 17 replies
    • 1.3k views

  19. Suds for dummies

    By Danny68,
    • 13 replies
    • 1.6k views

  20. Renovating - how to keep heat from the sun in the winter, and out in the summer

    By Garald,
    • 3 replies
    • 1.2k views

  21. Measured heat use way lower than MCS calculation. ASHP sizing.

    By Jwenty,   
    • 19 replies
    • 2.7k views

  22. Tony Tray Airtightness

    By Johnny Jekyll,
    • 15 replies
    • 3.2k views

  23. Traditional Timber Frame + Passivhaus

    By Kingy,   
    • 3 replies
    • 1.2k views

  24. Alternative "weather compensation" control ideas 1 2

    By ProDave,
    • 38 replies
    • 3.5k views

  25. SAP calcs for extension

    By notreadyforthis,   
    • 1 reply
    • 1.2k views
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