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Forum: Heating, Ventilation, Air Conditioning (HVAC): Home Inspection and Commercial Inspection

Heating Equipment, Venting Systems, Combustion and Ventilating Air, Distribution System(s), Duct Insulation, Outlets, Radiators, Piping Systems and Valves, Cooling Equipment, Condensate Drains ... For Home Inspections & Commercial Inspections

  1. Sticky Thread Sticky: Furnace Age Information

    Started by Brian Hannigan, 07-24-2013 01:04 PM
    • Replies: 4
    • Views: 39,943
    Sky Jones
    09-26-2014, 10:17 AM Go to last post

  2. Thumbs up Sticky Thread Sticky: I want to give a special "Thank You" to...

    Started by Brian Hannigan, 05-02-2013 01:26 PM
    • Replies: 2
    • Views: 21,901
    ROBERT YOUNG
    04-09-2016, 07:33 PM Go to last post

  1. 3 Ton A/C in 2,000 Sq. Ft. House

    Started by Jon mackay, 04-25-2010 11:18 AM
    1 Attachment(s)
    • Replies: 50
    • Views: 258,335
    Binford Tools
    07-02-2012, 09:38 AM Go to last post

  2. How to start an AC unit when thermostat is missing

    Started by Gene South, 08-17-2010 03:29 PM
    2 Pages •
    1 2
    • Replies: 79
    • Views: 126,426
    Markus Keller
    01-02-2011, 11:52 AM Go to last post

  3. Black air filter

    Started by william siegel, 07-27-2009 05:15 PM
    1 Attachment(s)
    • Replies: 22
    • Views: 79,159
    Sara Lee
    01-08-2016, 09:28 AM Go to last post

  4. Boiler turns on and off often??? What will cause this?

    Started by Andy Jarchow, 04-29-2010 07:56 AM
    • Replies: 17
    • Views: 70,936
    jason schatz
    04-30-2010, 03:25 PM Go to last post

  5. Is HVAC supply required in bathrooms?

    Started by JD Johnson, 07-23-2008 06:27 PM
    • Replies: 27
    • Views: 70,578
    Jerry Peck
    05-08-2019, 12:06 PM Go to last post

  6. Can you vent a gAs fire Water heater out a perimeter wall

    Started by Blain Plantz, 04-12-2009 12:03 PM
    • Replies: 7
    • Views: 65,908
    Ron Hasil
    04-13-2009, 07:50 AM Go to last post

  7. Average cost of new duct work?

    Started by Miriam Barton, 06-03-2007 09:29 PM
    • Replies: 3
    • Views: 61,118
    Jerry Peck
    06-04-2007, 12:44 PM Go to last post

  8. Can furnace combustion air be pulled from attic

    Started by Ryan Vega, 12-06-2009 08:37 PM
    1 Attachment(s)
    • Replies: 54
    • Views: 59,877
    Jerry Peck
    12-14-2018, 12:47 PM Go to last post

  9. Condensing furnace Exhaust, Distances from window, electric and gas meters

    Started by Joel Parness, 03-12-2008 05:56 PM
    2 Attachment(s)
    • Replies: 10
    • Views: 57,630
    Ken Amelin
    03-16-2008, 07:08 PM Go to last post

  10. PEX Hot Water Line Temperature Rating

    Started by Nick Ostrowski, 08-22-2012 05:24 AM
    3 Attachment(s)
    • Replies: 6
    • Views: 57,024
    Jerry Peck
    05-25-2017, 05:57 PM Go to last post

  11. Covering AC Condensers in the Winter

    Started by Nick Ostrowski, 02-04-2012 01:02 PM
    • Replies: 24
    • Views: 55,425
    Nate Workentine
    04-09-2013, 07:16 PM Go to last post

  12. "PVC" Duct In A Residential Forced Air System?

    Started by Michael Thomas, 01-19-2011 05:31 AM
    1 Attachment(s)
    • Replies: 19
    • Views: 54,109
    Amanda Hill
    11-17-2016, 02:20 PM Go to last post

  13. White powder below flue

    Started by John Thompson, 09-10-2009 04:36 PM
    12 Attachment(s)
    • Replies: 36
    • Views: 52,836
    Randy Aldering
    09-27-2009, 10:28 AM Go to last post

  14. HVAC condensation drain line vent cap

    Started by Stephen Houmard, 04-24-2008 04:58 AM
    8 Attachment(s)
    • Replies: 47
    • Views: 52,476
    John Allingham
    05-06-2008, 10:18 AM Go to last post

  15. Decoding older Rheem furnace Serial # - looking for manuf date

    Started by Noah Adams, 09-16-2011 08:20 PM
    17 Attachment(s)
    • Replies: 21
    • Views: 52,256
    jim white
    01-25-2016, 02:36 PM Go to last post

  16. Exhaust duct shared by bathroom fans

    Started by Michael Thomas, 11-14-2010 04:07 PM
    • Replies: 20
    • Views: 49,658
    Denny Waters
    01-05-2011, 02:39 PM Go to last post

  17. Furnace in Garage

    Started by Andrew Kolar, 02-26-2009 05:09 PM
    4 Attachment(s)
    • Replies: 28
    • Views: 49,050
    Darren Miller
    03-08-2009, 08:00 AM Go to last post

  18. Thumbs up Unusual Air and Noise from Bath Sink - AC primary drain

    Started by Phil Lanier, 07-29-2007 12:41 PM
    5 Attachment(s)
    • Replies: 25
    • Views: 48,808
    Jim Luttrall
    11-15-2014, 01:43 PM Go to last post

  19. Load calculation form for properly sizing a furnace

    Started by Kevin Luce, 03-06-2008 09:16 AM
    1 Attachment(s)
    • Replies: 12
    • Views: 47,386
    Ed Voytovich
    03-08-2008, 04:11 PM Go to last post

  20. mis matched condenser & handler

    Started by Jerome W. Young, 01-10-2008 06:11 PM
    • Replies: 13
    • Views: 45,982
    David Bell
    12-08-2009, 07:24 PM Go to last post

  21. Minimum clearance between air-cooled condensing units

    Started by Michael Choffin, 10-13-2010 01:48 PM
    1 Attachment(s)
    • Replies: 13
    • Views: 44,718
    Jerry Peck
    10-17-2010, 02:54 PM Go to last post

  22. Flexible gas pipe

    Started by Frank Bombardiere, 07-10-2007 03:29 PM
    1 Attachment(s)
    • Replies: 14
    • Views: 44,139
    H.G. Watson, Sr.
    08-30-2010, 08:30 AM Go to last post

  23. Exclamation Garage Vents

    Started by Charles Smith, 07-10-2007 07:11 AM
    • Replies: 8
    • Views: 44,000
    Jerry Peck
    07-11-2007, 09:45 AM Go to last post

  24. Exhaust from high efficiency furnace

    Started by Mitchell Chiger, 01-23-2013 08:46 PM
    5 Attachment(s)
    • Replies: 10
    • Views: 42,978
    Bob Elliott
    01-25-2013, 09:36 PM Go to last post

  25. Payne air conditioners

    Started by imported_John Smith, 05-12-2007 04:51 PM
    • Replies: 10
    • Views: 42,672
    DavidR
    05-13-2007, 04:47 PM Go to last post

  26. High Humidity with Heat Pump

    Started by Joe Buemi, 09-08-2009 01:27 AM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 108
    • Views: 41,748
    Cobra Cook
    09-28-2009, 09:17 AM Go to last post

  27. B vent clearance

    Started by John Dirks Jr, 08-30-2009 05:19 PM
    8 Attachment(s)
    • Replies: 23
    • Views: 41,651
    Phillip Norman
    03-02-2012, 06:38 AM Go to last post

  28. Heat Pump temperature drop

    Started by Brent Crouse, 06-09-2008 03:54 PM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 70
    • Views: 41,102
    DavidR
    07-04-2009, 06:19 AM Go to last post

  29. Gas regulator orientation?

    Started by Mike Hunger, 06-04-2009 03:21 PM
    1 Attachment(s)
    • Replies: 9
    • Views: 40,476
    Jerry Peck
    06-05-2009, 01:06 PM Go to last post

  30. Floor or ceiling register placement advice

    Started by David Edens, 02-28-2008 08:51 AM
    • Replies: 13
    • Views: 39,796
    Ted Menelly
    06-17-2008, 02:00 PM Go to last post

  31. Proper venting of high efficency furnace

    Started by Reis Pearson, 11-14-2008 05:46 PM
    1 Attachment(s)
    • Replies: 11
    • Views: 39,092
    Dan Hagman
    11-18-2008, 06:57 AM Go to last post

  32. Running A/C in cold weather

    Started by Dave Hill, 12-21-2012 10:17 AM
    • Replies: 32
    • Views: 38,473
    Mike Lamb
    03-27-2013, 07:28 AM Go to last post

  33. Tape on furnace vent pipe

    Started by Justin Fehl, 03-16-2018 08:42 AM
    furnace, pipe, vent 1 Attachment(s)
    • Replies: 11
    • Views: 37,654
    Eric Barker
    03-05-2019, 12:15 PM Go to last post

  34. crawl space water heaters---no more gas ones

    Started by CHARLIE VAN FLEET, 06-11-2008 07:33 PM
    • Replies: 16
    • Views: 37,349
    Blain Plantz
    07-15-2008, 09:37 AM Go to last post

  35. How do you check an ac unit?

    Started by Andy Jarchow, 05-31-2010 08:43 AM
    2 Pages •
    1 2
    1 Attachment(s)
    • Replies: 68
    • Views: 36,580
    Jerry Peck
    06-13-2014, 05:25 AM Go to last post

  36. Neighbors new loud horizontal furnace vent

    Started by jeff check, 06-03-2009 07:01 PM
    • Replies: 20
    • Views: 36,454
    David Bell
    06-11-2010, 07:06 PM Go to last post

  37. Sight glasses on refrigerant lines ???

    Started by Jonathan Cartwright, 09-18-2008 02:26 PM
    3 Attachment(s)
    • Replies: 11
    • Views: 35,554
    Jerry Peck
    09-25-2008, 06:16 PM Go to last post

  38. HVAC suspended from rafters. What is the correct method?

    Started by Gene South, 09-13-2012 02:14 PM
    6 Attachment(s)
    • Replies: 16
    • Views: 34,851
    Jerry Peck
    08-10-2019, 05:45 PM Go to last post

  39. A/C Condensate Drain Line Insulation

    Started by Kris Svendsen, 01-03-2013 04:30 PM
    1 Attachment(s)
    • Replies: 16
    • Views: 34,035
    Jerry Peck
    02-08-2014, 12:19 PM Go to last post

  40. Condenser size larger than A-coil

    Started by Frank Bombardiere, 12-17-2008 07:47 PM
    • Replies: 7
    • Views: 33,863
    Jerry Peck
    12-18-2008, 11:55 AM Go to last post

  41. Return Air vent Location

    Started by Rick Hurst, 11-24-2008 06:13 PM
    6 Attachment(s)
    • Replies: 64
    • Views: 32,261
    Tom Edwards
    11-08-2009, 08:00 PM Go to last post

  42. Indoor AC coil cabinet sweating?

    Started by Michael Vasquez, 08-07-2008 08:58 PM
    • Replies: 7
    • Views: 32,232
    Michael Vasquez
    08-08-2008, 08:11 PM Go to last post

  43. S-trap on condesation line-Wrong?

    Started by Donald Stauffer, 07-07-2018 10:15 AM
    4 Attachment(s)
    • Replies: 12
    • Views: 31,931
    Gunnar Alquist
    07-09-2018, 08:17 PM Go to last post

  44. General rule for sizing gased forced air units

    Started by Marc M, 12-09-2009 08:54 PM
    1 Attachment(s)
    • Replies: 25
    • Views: 31,873
    Joe Klampfer
    12-20-2009, 02:24 PM Go to last post

  45. water in High Efficeincy furnace vent

    Started by nick dibenedetto, 10-22-2010 06:44 AM
    • Replies: 7
    • Views: 31,855
    Vern Heiler
    10-23-2010, 05:50 PM Go to last post

  46. Drip leg required?

    Started by Welmoed Sisson, 05-30-2013 03:58 PM
    1 Attachment(s)
    • Replies: 10
    • Views: 31,811
    Jerry Peck
    03-28-2022, 06:43 AM Go to last post

  47. Trane Heat Pump Year & Ton

    Started by Sam Morris, 10-13-2010 08:21 PM
    • Replies: 1
    • Views: 31,614
    Garry Sorrells
    10-14-2010, 09:59 AM Go to last post

  48. Commercial Restroom Ventilation Requirements

    Started by imported_John Smith, 01-01-2010 09:20 AM
    • Replies: 3
    • Views: 30,851
    imported_John Smith
    01-01-2010, 04:13 PM Go to last post

  49. A/C Service Disconnect

    Started by Chris Skoczylas, 08-22-2007 07:41 AM
    1 Attachment(s)
    • Replies: 19
    • Views: 30,783
    Jerry Peck
    08-27-2007, 11:19 AM Go to last post

  50. B vent height above roof

    Started by Matt Bartels, 06-11-2009 11:43 AM
    3 Attachment(s)
    • Replies: 11
    • Views: 30,323
    Jerry Peck
    06-17-2009, 09:33 PM Go to last post

  51. Furnace & Water Heater in Closet in Bedroom Closet

    Started by Nick Ostrowski, 07-02-2008 10:06 AM
    4 Attachment(s)
    • Replies: 24
    • Views: 30,264
    David Banks
    07-23-2008, 08:27 AM Go to last post

  52. New house undersized HVAC?

    Started by Greg Bentz, 05-19-2019 12:55 PM
    • Replies: 15
    • Views: 30,105
    Rod Butler
    08-14-2019, 04:10 PM Go to last post

  53. Can boiler pipes get hot enough to cause a fire if touching?

    Started by Andy Jarchow, 04-27-2010 03:51 AM
    • Replies: 7
    • Views: 30,069
    Nathan Paling
    12-14-2016, 03:48 PM Go to last post

  54. Exhaust vents under a deck

    Started by Terry Beck, 09-24-2010 10:51 PM
    2 Attachment(s)
    • Replies: 15
    • Views: 29,836
    Rod Butler
    09-27-2010, 03:36 PM Go to last post

  55. Condensate and A/C drain to the exterior

    Started by Jon mackay, 04-09-2010 11:08 AM
    5 Attachment(s)
    • Replies: 25
    • Views: 29,524
    Tim Fuller
    07-11-2010, 04:20 AM Go to last post

  56. Help with age of heat pump system

    Started by Jim Kasterko, 04-17-2008 05:08 PM
    1 Attachment(s)
    • Replies: 12
    • Views: 29,180
    Jim Hintz
    01-27-2010, 09:36 AM Go to last post

  57. Window screen requirements?

    Started by JD Johnson, 11-03-2008 02:12 PM
    • Replies: 17
    • Views: 28,776
    Jerry Peck
    08-29-2017, 12:01 PM Go to last post

  58. Why A/C can't be tested in the winter

    Started by John Watson, 12-23-2009 12:43 PM
    • Replies: 17
    • Views: 28,687
    Erby Crofutt
    01-27-2010, 04:47 AM Go to last post

  59. 240-volt versus 208-volt

    Started by Dave Hahn, 06-24-2008 11:13 PM
    1 Attachment(s)
    • Replies: 16
    • Views: 28,624
    Michael Larson
    06-25-2008, 11:03 AM Go to last post

  60. Date of Manufacture, Burnham Boiler

    Started by Lynette Zarek, 04-26-2012 07:15 AM
    • Replies: 3
    • Views: 28,390
    H.G. Watson, Sr.
    04-26-2012, 08:50 PM Go to last post

  61. What causes flame rollout or scorching?

    Started by Jon mackay, 05-23-2011 06:53 AM
    1 Attachment(s)
    • Replies: 18
    • Views: 27,728
    Roger Hankey
    05-30-2011, 07:56 PM Go to last post

  62. Dryer Vent Next To Condensing Coil

    Started by imported_John Smith, 04-27-2007 05:31 PM
    1 Attachment(s)
    • Replies: 12
    • Views: 27,619
    Ron Tate
    04-29-2007, 02:52 PM Go to last post

  63. furnace will not shut off

    Started by Drew McGee, 01-28-2008 05:29 PM
    • Replies: 20
    • Views: 27,473
    TOM DEEHAN
    02-05-2008, 06:57 PM Go to last post

  64. White Powder From Vents Maytag Furnace

    Started by Al Hendry, 12-21-2009 10:42 AM
    3 Attachment(s)
    • Replies: 41
    • Views: 27,469
    edspace
    10-20-2011, 04:54 AM Go to last post

  65. Thermostat location?

    Started by BARRY ADAIR, 05-21-2007 07:14 AM
    1 Attachment(s)
    • Replies: 12
    • Views: 27,454
    Thom Walker
    06-01-2007, 02:04 PM Go to last post

  66. Testing AC in cooler temperatures

    Started by Gene South, 04-10-2008 05:50 AM
    • Replies: 37
    • Views: 27,336
    Scott Patterson
    04-30-2008, 12:57 PM Go to last post

  67. Single or double wall flue pipe?

    Started by Greg Jenkins, 01-08-2009 12:43 PM
    4 Attachment(s)
    • Replies: 20
    • Views: 27,292
    Craig Ervin
    04-13-2009, 10:26 AM Go to last post

  68. Ridge vent with spray foam insulation in rafters

    Started by Ernie Simpson, 05-14-2019 05:10 PM
    • Replies: 24
    • Views: 27,092
    Michael Bryan
    01-05-2020, 10:50 PM Go to last post

  69. Vent clearances from window

    Started by Ken Amelin, 03-03-2013 10:02 AM
    2 Attachment(s)
    • Replies: 12
    • Views: 26,722
    ted kidd
    03-08-2013, 09:11 PM Go to last post

  70. bathroom wall heater

    Started by brianmiller, 09-26-2010 02:11 PM
    • Replies: 10
    • Views: 26,676
    matt faust
    11-16-2010, 12:30 PM Go to last post

  71. Exhaust Vent Near Window...

    Started by Clint White, 02-07-2009 10:48 AM
    1 Attachment(s)
    • Replies: 18
    • Views: 26,085
    Jerry Peck
    02-10-2009, 07:54 PM Go to last post

  72. furnace condensate and sump pump

    Started by John Arnold, 08-20-2009 06:35 PM
    • Replies: 17
    • Views: 26,078
    Daniel Leung
    08-23-2009, 10:10 PM Go to last post

  73. P-trap on wrong side of vent

    Started by dan orourke, 06-09-2007 07:15 AM
    • Replies: 6
    • Views: 25,981
    DavidR
    06-10-2007, 01:14 PM Go to last post

  74. Abandoned Propane Tank

    Started by Ken Amelin, 02-22-2012 07:57 AM
    1 Attachment(s)
    • Replies: 36
    • Views: 25,752
    Jack Feldmann
    03-08-2012, 03:10 PM Go to last post

  75. Propane supply line from tank to home

    Started by Ryan Stouffer, 07-15-2009 09:17 PM
    3 Attachment(s)
    • Replies: 5
    • Views: 25,566
    Ryan Stouffer
    07-17-2009, 07:04 AM Go to last post

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