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Forum: Energy Efficiency and Building Performance Discussion NEW

Energy Efficiency and Building Performance Discussion

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  2. additional heat pump capacity

    Started by MIKEALSO, 05-23-2022 05:00 PM
    • Replies: 5
    • Views: 929
    09-29-2022, 10:21 PM Go to last post
    • Replies: 3
    • Views: 2,732
    07-12-2022, 10:58 AM Go to last post
  3. Efficient Duct Design? I have concerns

    Started by walkingdrunken, 02-22-2022 08:36 AM
    5 Pages
    1 2 3 4 5
    • Replies: 87
    • Views: 10,771
    07-04-2022, 10:14 AM Go to last post
  4. chiller efficiency

    Started by mohad_i, 12-12-2021 08:10 AM
    • Replies: 8
    • Views: 1,561
    05-30-2022, 08:05 AM Go to last post
  5. Heat Pump and COP

    Started by ggazzola, 02-23-2022 09:07 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 1,446
    05-12-2022, 05:28 PM Go to last post
  6. R410 phase down and R454B alternative

    Started by mohad_i, 05-07-2022 04:48 AM
    • Replies: 0
    • Views: 750
    05-07-2022, 04:48 AM Go to last post
  7. Amperage usage for Multi Stage Compressors

    Started by Inspector314, 07-08-2021 09:16 PM
    • Replies: 8
    • Views: 2,942
    02-20-2022, 09:24 AM Go to last post
    • Replies: 7
    • Views: 1,835
    01-14-2022, 04:50 PM Go to last post
  8. Air to Air Heat Pump in cold temperatures

    Started by bduemig, 01-12-2020 10:15 AM
    2 Pages
    1 2
    • Replies: 23
    • Views: 8,233
    01-08-2022, 09:25 PM Go to last post
    • Replies: 0
    • Views: 864
    12-13-2021, 08:53 AM Go to last post
  9. Ground to space controls

    Started by Lariliss, 11-12-2021 03:03 AM
    • Replies: 0
    • Views: 847
    11-12-2021, 03:03 AM Go to last post
    • Replies: 12
    • Views: 1,925
    11-09-2021, 04:01 PM Go to last post
  10. Understanding EER

    Started by Aircol, 09-30-2021 08:09 PM
    • Replies: 2
    • Views: 2,121
    10-15-2021, 02:55 PM Go to last post
  11. Sizing A/C and ERV for my house

    Started by Retread, 02-18-2021 04:56 PM
    • Replies: 4
    • Views: 4,064
    09-01-2021, 08:46 AM Go to last post
    • Replies: 8
    • Views: 4,682
    07-09-2021, 11:09 AM Go to last post
  12. twin heat recovery wheel for FAHU

    Started by moideen, 06-01-2021 02:48 AM
    • Replies: 0
    • Views: 1,369
    06-01-2021, 02:48 AM Go to last post
  13. Electrify Everything

    Started by mhoush, 12-16-2020 09:01 PM
    5 Pages
    1 2 3 4 5
    • Replies: 92
    • Views: 24,338
    05-13-2021, 09:18 PM Go to last post
  14. 2 stage, multiple condenser system question.

    Started by 23F5%, 05-05-2021 09:23 AM
    • Replies: 5
    • Views: 1,945
    05-10-2021, 10:06 AM Go to last post
  15. Design principles for a comfortable HVAC system

    Started by Jamesss, 04-01-2021 07:20 AM
    • Replies: 1
    • Views: 2,321
    04-01-2021, 07:18 PM Go to last post
    • Replies: 5
    • Views: 2,237
    03-01-2021, 04:47 PM Go to last post
  16. Question ERV where to put the fresh air!

    Started by M2coolcomfort, 02-10-2021 10:08 AM
    • Replies: 17
    • Views: 3,358
    02-17-2021, 07:50 PM Go to last post
  17. Refrigerant Retrofitting

    Started by mohad_i, 01-26-2021 03:57 AM
    • Replies: 0
    • Views: 2,041
    01-26-2021, 03:57 AM Go to last post
  18. Is building science still BOOMIN?

    Started by Ambition, 01-15-2020 10:05 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 13,054
    12-17-2020, 05:30 PM Go to last post
  19. Need advice on heaters

    Started by Rou25, 09-24-2020 05:50 AM
    2 Pages
    1 2
    • Replies: 29
    • Views: 18,603
    11-26-2020, 03:00 PM Go to last post
  20. Good Forum Topic - Analytics

    Started by adrianfromoz, 04-12-2017 08:13 PM
    • Replies: 13
    • Views: 10,250
    09-28-2020, 10:08 AM Go to last post
  21. Foam board between shingle roof and metal roof

    Started by downeaster, 09-19-2020 10:38 AM
    • Replies: 3
    • Views: 3,650
    09-21-2020, 09:23 AM Go to last post
  22. Help with Gas vs HP or something else

    Started by Tekjunkie, 08-01-2020 03:17 PM
    • Replies: 1
    • Views: 3,840
    09-17-2020, 09:43 PM Go to last post
  23. Vapor barrier at exterior wall surface ?

    Started by Poodle Head Mikey, 03-12-2019 10:29 PM
    • Replies: 13
    • Views: 8,660
    09-06-2020, 09:06 PM Go to last post
  24. Which one is more efficient?

    Started by eshi1362, 06-21-2017 10:54 AM
    2 Pages
    1 2
    • Replies: 24
    • Views: 16,754
    09-02-2020, 09:07 PM Go to last post
    • Replies: 19
    • Views: 11,983
    07-27-2020, 12:04 PM Go to last post
    • Replies: 4
    • Views: 4,402
    07-26-2020, 11:30 AM Go to last post
  25. Question Energy management solutions pricing

    Started by KaiRie, 12-11-2019 05:21 AM
    • Replies: 2
    • Views: 6,169
    06-19-2020, 07:40 PM Go to last post
  26. Solx energy

    Started by barty, 02-02-2019 11:57 AM
    3 Pages
    1 2 3
    • Replies: 48
    • Views: 33,259
    05-25-2020, 12:34 PM Go to last post
  27. Oversizing with 2 stage equipment to save energy/run less

    Started by ats1986, 06-15-2019 10:17 PM
    2 Pages
    1 2
    • Replies: 31
    • Views: 11,668
    05-19-2020, 10:26 AM Go to last post
  28. Infra Red Heating for High Bay Buildings

    Started by Curious57, 12-12-2019 08:16 PM
    • Replies: 2
    • Views: 4,679
    05-13-2020, 04:31 PM Go to last post
    • Replies: 6
    • Views: 6,474
    12-28-2019, 04:47 PM Go to last post
  29. Spray foam insulation--Whats the deal??

    Started by Ambition, 11-26-2019 09:51 AM
    • Replies: 3
    • Views: 5,115
    11-27-2019, 09:28 AM Go to last post
  30. kW equals BTUs...or does it?

    Started by OHDataCenterGuy, 10-22-2019 12:17 PM
    2 Pages
    1 2
    • Replies: 27
    • Views: 10,564
    11-24-2019, 05:54 AM Go to last post
  31. HEATPIPS in FAHU

    Started by moideen, 11-11-2019 03:37 AM
    • Replies: 9
    • Views: 6,972
    11-17-2019, 01:02 PM Go to last post
  32. EU SEER <=> US SEER?

    Started by gustavhorna, 06-12-2019 06:36 PM
    • Replies: 4
    • Views: 8,870
    10-23-2019, 04:22 AM Go to last post

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