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  1. The threads below have not been updated since your last visit or since forums have been marked read.
    • Replies: 3
    • Views: 44
    Last Post: Today 12:54 AM
    by MAC702  Go to last post
    • Replies: 13
    • Views: 232
    Last Post: Today 12:53 AM
    by Irascible  Go to last post
  2. Any advice on pellet grills?

    Started by 2sac, 03-24-2019 06:48 PM
    • Replies: 14
    • Views: 2,742
    Last Post: Today 12:51 AM
    by rider77  Go to last post
    • Replies: 1
    • Views: 16
    Last Post: Today 12:40 AM
    by jayguy  Go to last post
  3. Cvhf with (negative) -63F evap approach. Help!

    Started by Im_just_goofin, 10-15-2020 01:42 PM
    2 Pages
    1 2
    • Replies: 21
    • Views: 865
    Last Post: Today 12:20 AM
    by supertek65  Go to last post
  4. Poll: OUR DEAR FRIEND HAS CANCER FCS

    Started by supertek65, 03-15-2009 11:05 PM
    1675 Pages
    1 2 3 4 5 6 ... 1675
    • Replies: 33,497
    • Views: 2,642,557
    Last Post: Today 12:12 AM
    by supertek65  Go to last post
  5. Extended temperature range not working?

    Started by nuraman00, Yesterday 11:04 PM
    • Replies: 1
    • Views: 42
    Last Post: Today 12:03 AM
    by JayMan7  Go to last post
  6. Conversion

    Started by rickl, 10-03-2020 08:09 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 883
    Last Post: Today 12:03 AM
    by rickl  Go to last post
  7. Boiler service tool bag

    Started by mihvacguy, Yesterday 10:40 PM
    • Replies: 1
    • Views: 47
    Last Post: Yesterday 11:47 PM
    by JayMan7  Go to last post
    • Replies: 0
    • Views: 36
    Last Post: Yesterday 11:20 PM
    by DG-ATX  Go to last post
  8. Where do I submit Energy Star credits to?

    Started by nuraman00, 10-23-2020 09:19 PM
    • Replies: 3
    • Views: 106
    Last Post: Yesterday 11:03 PM
    by nuraman00  Go to last post
  9. Air conditioner add on

    Started by Adlerberts-Protege, 04-25-2016 07:57 PM
    • Replies: 11
    • Views: 2,646
    Last Post: Yesterday 10:55 PM
    by Adlerberts-Protege  Go to last post
    • Replies: 19
    • Views: 1,598
    Last Post: Yesterday 10:48 PM
    by gravity  Go to last post
  10. Equipment sizing

    Started by Wild85, Yesterday 09:30 PM
    • Replies: 2
    • Views: 60
    Last Post: Yesterday 10:44 PM
    by Wild85  Go to last post
  11. Carrier RTU Inducer Issue

    Started by Erik52, 10-18-2020 11:30 AM
    2 Pages
    1 2
    • Replies: 22
    • Views: 663
    Last Post: Yesterday 10:04 PM
    by rundawg  Go to last post
  12. Load Calc Question

    Started by bigjohnsons34, 10-16-2020 07:03 PM
    • Replies: 14
    • Views: 345
    Last Post: Yesterday 10:03 PM
    by comfortdoc  Go to last post
  13. restaurant make up air

    Started by vicsmyk, 10-22-2020 03:16 AM
    2 Pages
    1 2
    • Replies: 31
    • Views: 456
    Last Post: Yesterday 09:58 PM
    by vicsmyk  Go to last post
    • Replies: 4
    • Views: 127
    Last Post: Yesterday 09:51 PM
    by GoCougs  Go to last post
    • Replies: 13
    • Views: 294
    Last Post: Yesterday 09:35 PM
    by BadDaddy420  Go to last post
  14. Upflow Return Air at Bottom or Side of Furnace?

    Started by BobStevens, 10-23-2020 05:10 PM
    • Replies: 8
    • Views: 147
    Last Post: Yesterday 09:26 PM
    by BobStevens  Go to last post
  15. rheem furnace short cycle

    Started by nytech28, Yesterday 08:32 PM
    • Replies: 3
    • Views: 133
    Last Post: Yesterday 09:07 PM
    by JayMan7  Go to last post
  16. New HVAC problems and sweating

    Started by synstsia, Yesterday 05:19 PM
    • Replies: 6
    • Views: 165
    Last Post: Yesterday 09:01 PM
    by ACguy85  Go to last post
  17. Coolant level?

    Started by Jeremiahm, Yesterday 12:18 PM
    2 Pages
    1 2
    • Replies: 32
    • Views: 339
    Last Post: Yesterday 08:07 PM
    by pecmsg  Go to last post
  18. Stamped steel register static pressure

    Started by Wild85, Yesterday 03:08 PM
    • Replies: 2
    • Views: 136
    Last Post: Yesterday 07:59 PM
    by Wild85  Go to last post
  19. Is building science still BOOMIN?

    Started by Ambition, 01-15-2020 10:05 PM
    • Replies: 7
    • Views: 2,236
    Last Post: Yesterday 07:42 PM
    by Artrose  Go to last post
  20. Online Manual J load calculator

    Started by garyed, 12-19-2011 06:05 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 127,171
    Last Post: Yesterday 07:36 PM
    by garyed  Go to last post
  21. questions on heat load calculation

    Started by Missoula, Yesterday 07:30 PM
    • Replies: 0
    • Views: 73
    Last Post: Yesterday 07:30 PM
    by Missoula  Go to last post
    • Replies: 8
    • Views: 285
    Last Post: Yesterday 07:24 PM
    by randyf  Go to last post
    • Replies: 5
    • Views: 108
    Last Post: Yesterday 06:50 PM
    by beenthere  Go to last post
  22. No furnaces available?

    Started by navyguy1, Yesterday 03:15 PM
    • Replies: 6
    • Views: 200
    Last Post: Yesterday 06:21 PM
    by Unlimited1  Go to last post
  23. Ultra-Aire XT155H in real world

    Started by medveszonok, 10-23-2020 09:55 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 320
    Last Post: Yesterday 05:52 PM
    by teddy bear  Go to last post
  24. Khabib vs Gaethje

    Started by valdelocc, Yesterday 09:21 AM
    • Replies: 13
    • Views: 194
    Last Post: Yesterday 05:16 PM
    by retired btc  Go to last post
  25. press systems

    Started by MiguelCobreHVAC, 12-30-2018 01:25 AM
    • Replies: 9
    • Views: 7,137
    Last Post: Yesterday 04:53 PM
    by tmyshrall91  Go to last post
  26. AC Closet Mold

    Started by richardbreiter, 10-17-2020 06:36 PM
    • Replies: 10
    • Views: 249
    Last Post: Yesterday 04:52 PM
    by richardbreiter  Go to last post
  27. American Standard AUD

    Started by Nytefog, Yesterday 12:51 PM
    • Replies: 1
    • Views: 101
    Last Post: Yesterday 04:47 PM
    by rundawg  Go to last post
  28. Sealing pvc flue

    Started by Rock9806, 10-15-2020 09:15 PM
    2 Pages
    1 2
    • Replies: 23
    • Views: 580
    Last Post: Yesterday 04:19 PM
    by tmyshrall91  Go to last post
  29. Impact of Refrigerant Leak

    Started by R-600, 10-21-2020 11:47 PM
    • Replies: 7
    • Views: 204
    Last Post: Yesterday 04:19 PM
    by oldfart  Go to last post
  30. Lineset Leaks

    Started by shrub, 01-09-2019 11:01 AM
    4 Pages
    1 2 3 4
    leaks, line set, lineset
    • Replies: 71
    • Views: 12,350
    Last Post: Yesterday 04:09 PM
    by tmyshrall91  Go to last post
  31. N4 Point NamesWiresheet vs. Database

    Started by techservices, 10-22-2020 07:52 PM
    • Replies: 2
    • Views: 191
    Last Post: Yesterday 03:46 PM
    by techservices  Go to last post

    Forum:
    Controls

  32. Spyder 5 VAV

    Started by lwarren, 10-13-2020 11:53 AM
    2 Pages
    1 2
    • Replies: 20
    • Views: 496
    Last Post: Yesterday 03:24 PM
    by yorkisn  Go to last post

    Forum:
    Controls

  33. Zoning in a mobile home

    Started by tycranston, Yesterday 12:20 PM
    • Replies: 2
    • Views: 176
    Last Post: Yesterday 03:15 PM
    by tycranston  Go to last post
  34. Emerson packing nut

    Started by Brooks978, 10-21-2020 11:09 PM
    • Replies: 11
    • Views: 354
    Last Post: Yesterday 03:12 PM
    by FrostGiant  Go to last post
  35. But it had a clean air filter...

    Started by mjohnson2981, 10-16-2020 10:05 PM
    • Replies: 8
    • Views: 696
    Last Post: Yesterday 03:10 PM
    by drpsr99  Go to last post
    • Replies: 26
    • Views: 5,702
    Last Post: Yesterday 02:44 PM
    by Sebea33  Go to last post
  36. New HVAC system choices

    Started by nickzabo, Yesterday 02:25 PM
    • Replies: 0
    • Views: 94
    Last Post: Yesterday 02:25 PM
    by nickzabo  Go to last post
  37. Oil Migration issue

    Started by Prison dog, 10-22-2020 11:26 AM
    3 Pages
    1 2 3
    • Replies: 50
    • Views: 585
    Last Post: Yesterday 01:28 PM
    by VTP99  Go to last post
  38. R22 evaporator coils with 410A outdoor A/C unit

    Started by Judson4, 06-24-2013 12:27 PM
    2 Pages
    1 2
    • Replies: 35
    • Views: 39,777
    Last Post: Yesterday 12:40 PM
    by DOGBOY  Go to last post
  39. Scotsman ice machine electrical(?) problem

    Started by Blute, 10-22-2020 11:15 PM
    • Replies: 5
    • Views: 165
    Last Post: Yesterday 12:10 PM
    by TechmanTerry  Go to last post
  40. Hepa filters , can you simply toss one in

    Started by Snapperhead, 10-22-2020 06:22 PM
    • Replies: 10
    • Views: 345
    Last Post: Yesterday 11:06 AM
    by BBeerme  Go to last post
  41. Insulating Ducts?

    Started by nizzy100, 10-20-2020 11:58 AM
    • Replies: 4
    • Views: 239
    Last Post: Yesterday 10:52 AM
    by nizzy100  Go to last post
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