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    • Replies: 9
    • Views: 560
    Last Post: 10-10-2020 05:24 PM
    by Dad  Go to last post
    • Replies: 11
    • Views: 6,682
    Last Post: 08-21-2020 05:41 PM
    by IndoorAirNerd  Go to last post
  1. Proper MERV rating for HVAC Air filter

    Started by juniormint7757, 07-14-2020 06:38 PM
    filter, filter restriction, merv
    • Replies: 6
    • Views: 471
    Last Post: 07-15-2020 04:00 PM
    by dan sw fl  Go to last post
  2. "Lies" about HEPA

    Started by IndoorAirNerd, 07-01-2020 12:31 PM
    filter, hepa, iaq
    • Replies: 4
    • Views: 1,225
    Last Post: 07-06-2020 04:51 PM
    by WAYNE3298  Go to last post
  3. HVAC Air Filters Always Necessary?

    Started by sbragman, 06-08-2020 04:25 PM
    filter
    • Replies: 5
    • Views: 447
    Last Post: 06-10-2020 03:18 PM
    by sbragman  Go to last post
    • Replies: 8
    • Views: 673
    Last Post: 05-18-2020 12:31 AM
    by Mukhtar Qureshi  Go to last post
  4. Return air drop to new filter rack

    Started by needshvac, 03-14-2020 11:39 PM
    duct, filter, lennox, return
    • Replies: 2
    • Views: 591
    Last Post: 03-15-2020 06:50 AM
    by dan sw fl  Go to last post
  5. Furance Filter Questions

    Started by Colorado_SCI, 01-04-2020 03:03 PM
    filter
    • Replies: 4
    • Views: 526
    Last Post: 01-04-2020 11:09 PM
    by Makeitcold  Go to last post
  6. FILTER ON MAKEUP AIR LOUVER

    Started by Mike Magee, 12-06-2019 02:25 AM
    engineer, exhaust, filter, filter restriction, make-up air
    • Replies: 3
    • Views: 562
    Last Post: 12-06-2019 10:22 AM
    by coolcoil  Go to last post
  7. Wait...What? My System Has a Filter?

    Started by TopTech16, 10-12-2019 07:32 PM
    • Replies: 2
    • Views: 1,271
    Last Post: 10-27-2019 03:11 AM
    by CoolAir Inc.  Go to last post
    • Replies: 10
    • Views: 692
    Last Post: 09-30-2019 03:41 PM
    by Southern43  Go to last post
  8. Help!

    Started by ScottMcDaniel, 08-25-2019 10:42 AM
    air filter, air filter size, filter, filter installation & maintenance, furnace, help.
    • Replies: 6
    • Views: 677
    Last Post: 09-22-2019 08:30 AM
    by martyinlincoln  Go to last post
    • Replies: 4
    • Views: 472
    Last Post: 08-25-2019 07:35 AM
    by teddy bear  Go to last post
  9. Lennex Furnace from the 50s

    Started by txh976, 10-16-2018 10:45 AM
    • Replies: 7
    • Views: 1,194
    Last Post: 10-16-2018 06:56 PM
    by Bazooka Joey  Go to last post
  10. Filter size

    Started by Lafd5246, 09-01-2018 04:20 PM
    air, filter, furnace, hvac, return, size
    • Replies: 2
    • Views: 803
    Last Post: 09-01-2018 06:40 PM
    by Lafd5246  Go to last post
    • Replies: 4
    • Views: 2,034
    Last Post: 05-25-2018 05:08 PM
    by kdean1  Go to last post
  11. Hospital AC Filter

    Started by Rabinbhat, 02-22-2017 05:55 AM
    filter, hepa
    • Replies: 5
    • Views: 1,459
    Last Post: 02-23-2017 12:31 PM
    by jebes  Go to last post
    • Replies: 2
    • Views: 1,942
    Last Post: 08-25-2016 10:22 AM
    by DOGBOY  Go to last post
    • Replies: 14
    • Views: 3,124
    Last Post: 08-23-2016 11:54 PM
    by jeffcwheeler  Go to last post
  12. TRANE CleanEffects

    Started by zoe58, 01-29-2016 09:00 PM
    cleaneffects, filter, trane
    • Replies: 1
    • Views: 1,645
    Last Post: 01-30-2016 07:25 AM
    by catmanacman  Go to last post
  13. Urgent filter assistance

    Started by Michaelunger, 09-08-2015 01:25 PM
    filter, filter installation & maintenance, filter maintenance article, hvac
    • Replies: 2
    • Views: 1,252
    Last Post: 09-08-2015 04:31 PM
    by kdean1  Go to last post
  14. Filter placement question

    Started by jdrharrison, 07-29-2015 12:07 PM
    • Replies: 5
    • Views: 2,215
    Last Post: 08-31-2015 08:04 PM
    by shavedneon  Go to last post
  15. Filter questions

    Started by alexolog, 07-09-2015 12:14 PM
    • Replies: 7
    • Views: 1,784
    Last Post: 07-09-2015 10:10 PM
    by CircusEnvy  Go to last post
    • Replies: 1
    • Views: 3,248
    Last Post: 04-27-2015 04:09 PM
    by Gingahippy  Go to last post
  16. Maximum MERV rating?

    Started by mikeraptis, 12-15-2014 09:50 PM
    filter, merv, smoke from vent
    • Replies: 6
    • Views: 2,458
    Last Post: 12-16-2014 05:40 AM
    by beenthere  Go to last post
  17. Filter question

    Started by 70005, 09-16-2014 08:07 PM
    filter
    • Replies: 7
    • Views: 1,516
    Last Post: 09-16-2014 10:15 PM
    by 70005  Go to last post
  18. General Question: Filter on HVAC Return?

    Started by srobert5, 08-05-2014 10:16 PM
    air, filter, hvac, return
    • Replies: 3
    • Views: 1,368
    Last Post: 08-06-2014 08:54 AM
    by SBKold  Go to last post
  19. Evolution Plus 95s Filter Advice Wanted

    Started by kc27, 02-28-2014 12:38 AM
    bryant, evolution, filter, filtrete
    • Replies: 7
    • Views: 3,612
    Last Post: 03-01-2014 07:36 AM
    by kc27  Go to last post
    • Replies: 3
    • Views: 2,133
    Last Post: 01-09-2014 10:38 AM
    by wahoo  Go to last post
  20. Carrier Infinity Bid - Please Rip This Bid Apart

    Started by ndeverest, 11-13-2013 10:29 PM
    bid, carrier, carrier infinity, dehumidifier, duct design, erv, filter
    • Replies: 4
    • Views: 4,600
    Last Post: 11-14-2013 12:13 PM
    by ndeverest  Go to last post
  21. Best Air Filter - Media or Electrostatic ??

    Started by tedrhoads, 09-04-2013 01:31 PM
    electronic air filter, filter, filter restriction
    • Replies: 8
    • Views: 3,064
    Last Post: 09-05-2013 06:34 AM
    by rickboggs  Go to last post
  22. Cooling Tower filter or Dolphin water treatment

    Started by MacGabhann, 08-23-2013 03:03 PM
    cooling tower, filter
    • Replies: 17
    • Views: 5,276
    Last Post: 08-27-2013 11:37 PM
    by CraziFuzzy  Go to last post
  23. MAX possible MERV rating for Goodman AWB18-05D

    Started by rhawke, 05-24-2013 03:39 AM
    filter, goodman, merv
    • Replies: 6
    • Views: 7,744
    Last Post: 05-29-2013 01:46 AM
    by rhawke  Go to last post
    • Replies: 10
    • Views: 11,039
    Last Post: 02-03-2012 06:30 PM
    by second opinion  Go to last post
  24. Manuf. recommended filter size REALLY wrong?

    Started by fferd, 12-24-2011 09:49 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 5,650
    Last Post: 12-26-2011 04:24 PM
    by Cooked  Go to last post
  25. Missing furnace filter

    Started by Ives, 10-15-2011 02:13 PM
    filter, filter installation & maintenance
    • Replies: 3
    • Views: 2,104
    Last Post: 10-15-2011 04:36 PM
    by Gross  Go to last post
  26. Rheem RXHF-E17AM13

    Started by Brr, 04-16-2011 08:05 PM
    filter
    • Replies: 3
    • Views: 2,031
    Last Post: 04-17-2011 05:01 PM
    by HVAC dawg  Go to last post
  27. Multiple Filters?

    Started by barten, 04-02-2010 10:59 PM
    filter, merv, parallel
    • Replies: 7
    • Views: 6,322
    Last Post: 11-04-2010 08:12 AM
    by DanW13  Go to last post
  28. Electronic air filter vs. media

    Started by pheatpump, 05-26-2010 04:29 PM
    electronic air filter, filter, media filter
    • Replies: 4
    • Views: 19,419
    Last Post: 10-29-2010 09:58 PM
    by Hvacsalesstar  Go to last post
  29. LENNOX RTU FILTER REPLACENT HELP?

    Started by yorkmechman, 10-25-2009 04:22 PM
    filter, lennox, rtu
    • Replies: 17
    • Views: 6,775
    Last Post: 10-26-2009 12:41 AM
    by Juleous  Go to last post
  30. HVAC Filter Gauge + Switch Manufacturer ?

    Started by recclest, 09-28-2009 09:22 AM
    filter, gauge, switch
    • Replies: 3
    • Views: 1,268
    Last Post: 09-29-2009 03:18 AM
    by recclest  Go to last post

    Forum:
    Controls

    • Replies: 7
    • Views: 2,511
    Last Post: 07-19-2009 03:50 PM
    by sprintmj19  Go to last post
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