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  1. What is the estimated AFUE for my 1984 furnace?

    Started by markf57, 09-17-2006 11:33 AM
    • Replies: 12
    • Views: 3,008
    Last Post: 09-14-2010 06:53 PM
    by commerce48  Go to last post
  2. How can I measure energy savings of new furnace?

    Started by markf57, 03-19-2010 12:04 PM
    • Replies: 5
    • Views: 492
    Last Post: 03-20-2010 02:27 AM
    by tedkidd  Go to last post
  3. Any comments about all climate heat pumps?

    Started by markf57, 03-16-2007 08:34 PM
    2 Pages
    1 2
    • Replies: 20
    • Views: 10,236
    Last Post: 10-06-2009 12:47 PM
    by GeoInNH  Go to last post
  4. Is this a problem? Should I call the tech?

    Started by markf57, 12-13-2007 11:32 PM
    5 Pages
    1 2 3 4 5
    • Replies: 57
    • Views: 4,596
    Last Post: 05-21-2009 11:37 PM
    by joemach  Go to last post
    • Replies: 0
    • Views: 329
    Last Post: 09-03-2008 12:10 AM
    by markf57  Go to last post
  5. Can I have 2 thermostats connected to my system?

    Started by markf57, 08-09-2008 03:05 PM
    2 Pages
    1 2
    • Replies: 25
    • Views: 1,268
    Last Post: 08-10-2008 10:52 AM
    by Airmechanical  Go to last post
  6. Zoning with an AS Heritage 16 DF system

    Started by markf57, 07-25-2008 06:50 PM
    • Replies: 0
    • Views: 364
    Last Post: 07-25-2008 06:50 PM
    by markf57  Go to last post
  7. IAQ problem, wiring problem or IAQ set-up issue?

    Started by markf57, 05-10-2008 04:15 PM
    • Replies: 3
    • Views: 483
    Last Post: 05-11-2008 12:07 AM
    by t527ed  Go to last post
    • Replies: 7
    • Views: 618
    Last Post: 05-06-2008 05:04 PM
    by beenthere  Go to last post
  8. Can I do this with an IAQ Thermostat?

    Started by markf57, 02-21-2008 12:43 AM
    • Replies: 9
    • Views: 522
    Last Post: 02-23-2008 05:36 AM
    by beenthere  Go to last post
  9. Does the heat pump fan run during defrost?

    Started by markf57, 12-10-2007 12:28 PM
    • Replies: 2
    • Views: 917
    Last Post: 12-10-2007 12:43 PM
    by markf57  Go to last post
  10. Is this a job for an HVAC guy or an electrician?

    Started by markf57, 11-30-2007 11:28 PM
    • Replies: 2
    • Views: 488
    Last Post: 11-30-2007 11:38 PM
    by toptwo  Go to last post
  11. Question about Installer System Test on IAQ

    Started by markf57, 11-09-2007 02:56 PM
    • Replies: 1
    • Views: 616
    Last Post: 11-11-2007 10:29 PM
    by rog09  Go to last post
  12. ESP, VS blower, Furnace filter and CFM. Oh My!

    Started by markf57, 11-05-2007 01:32 PM
    • Replies: 3
    • Views: 1,943
    Last Post: 11-05-2007 04:39 PM
    by dash  Go to last post
  13. Can a whole house fan and a HP coexist?

    Started by markf57, 10-31-2007 04:16 PM
    • Replies: 4
    • Views: 532
    Last Post: 10-31-2007 04:54 PM
    by markf57  Go to last post
  14. On, auto or CIRC on IAQ fan settings

    Started by markf57, 10-30-2007 11:07 PM
    • Replies: 7
    • Views: 8,935
    Last Post: 10-31-2007 12:08 PM
    by second opinion  Go to last post
  15. Where can I get American Standard data guides?

    Started by markf57, 10-30-2007 08:45 PM
    • Replies: 4
    • Views: 1,126
    Last Post: 10-31-2007 09:20 AM
    by markf57  Go to last post
  16. Help me understand the defrost cycle in a HP

    Started by markf57, 05-25-2007 12:29 AM
    • Replies: 11
    • Views: 809
    Last Post: 05-25-2007 09:26 PM
    by jrbenny  Go to last post
    • Replies: 5
    • Views: 805
    Last Post: 04-21-2007 08:22 PM
    by aircooled53  Go to last post
    • Replies: 3
    • Views: 585
    Last Post: 03-29-2007 12:42 PM
    by htrguy  Go to last post
  17. COP vs. HSPF. Which is a better indicator?

    Started by markf57, 03-28-2007 11:32 AM
    • Replies: 4
    • Views: 3,182
    Last Post: 03-28-2007 06:04 PM
    by markf57  Go to last post
  18. Carrier Infinity contoller vs. Honeywell IAQ

    Started by markf57, 03-24-2007 09:31 AM
    • Replies: 3
    • Views: 681
    Last Post: 03-25-2007 10:45 AM
    by coolguysfl  Go to last post
  19. Will a Honeywell TH8321U work with this setup?

    Started by markf57, 03-11-2007 07:24 PM
    • Replies: 5
    • Views: 807
    Last Post: 03-16-2007 12:36 AM
    by airsome  Go to last post
  20. rebates, dealer participation and buying windows.

    Started by markf57, 03-03-2007 11:25 AM
    • Replies: 3
    • Views: 468
    Last Post: 03-03-2007 12:44 PM
    by heatpumpguru  Go to last post
  21. a/c vs. heat pump question - P word

    Started by markf57, 02-21-2007 12:33 PM
    2 Pages
    1 2
    • Replies: 22
    • Views: 1,528
    Last Post: 02-23-2007 11:54 PM
    by oldertech  Go to last post
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