HVAC Forum

1,662 topics in this forum

1. York Affinity Modulating Furnace Venting 1 2

   By bay_dragon, January 6, 2009
   • 43 replies
   • 20.7k views
   • 
   • bay_dragon
   • January 12, 2009

2. Apollo Direct Vent Heating System 1 2

   By bussman, January 11, 2010
   • 28 replies
   • 20.3k views
   • 
   • kitchman7
   • March 14, 2012

3. Terminology - FAU, FCU, Furnace, AHU, MAU, etc

   By MPdesign, January 29, 2013
   • 7 replies
   • 19.8k views
   • 
   • MPdesign
   • January 29, 2013

4. Mitsubishi split age

   By Chad Fabry, May 22, 2016
   • 5 replies
   • 19.4k views
   • 
   • Chad Fabry
   • May 22, 2016

5. Buderus Boiler Date Identification?

   By dtontarski, November 18, 2008
   • 4 replies
   • 19k views
   • 
   • Bill Kibbel
   • November 1, 2020

6. Condensate drain trap?

   By jay kline, February 21, 2006
   • 6 replies
   • 18.8k views
   • 
   • Garcha
   • February 23, 2006

7. Conquest 90 furnace

   By bleschke, January 1, 2009
   • 11 replies
   • 18.8k views
   • 
   • bleschke
   • January 1, 2009

8. Furnace MODEL Number Decoder

   By Richard Moore, February 16, 2010
   • 3 replies
   • 18.6k views
   • 
   • Richard Moore
   • February 16, 2010

9. Polaris High Efficiency Water heaters

   By compass, March 21, 2007
   • 7 replies
   • 18.3k views
   • 
   • misterw152
   • January 7, 2014

10. White Powder on Furnace Exhaust After New Roof 1 2

    By brianross, October 22, 2008
    • 30 replies
    • 18.1k views
    • 
    • bd
    • November 8, 2008

11. Sun Dial furnace by Square D Company ?

    By Nolan Kienitz, January 29, 2011
    • 7 replies
    • 18k views
    • 
    • Nolan Kienitz
    • January 29, 2011

12. Williamson tempomatic gas furnace age

    By gtblum, January 22, 2010
    • 10 replies
    • 17.5k views
    • 
    • gtblum
    • January 22, 2010

13. Lennox Pulse furnace

    By Robert E Lee, February 1, 2007
    • 1 reply
    • 17.4k views
    • 
    • Robert E Lee
    • February 1, 2007

14. Wesco Electric Furnace

    By CHI2, April 3, 2009
    • 19 replies
    • 17.2k views
    • 
    • Jim Katen
    • November 26, 2022

15. How Cold Is Too Cold?

    By Brian G, January 22, 2008
    • 11 replies
    • 16.5k views
    • 
    • Brian G
    • January 24, 2008

16. Which Brand HVAC???

    By fyrmnk, June 27, 2017
    • 19 replies
    • 16.4k views
    • 
    • Michael Brown
    • June 20, 2022

17. Vent Clearance Clarification?

    By greyboy39, February 20, 2018
    • 6 replies
    • 16.4k views
    • 
    • RK52
    • April 3, 2018

18. Solderless copper pipe fittings

    By Neal Lewis, October 14, 2007
    • 13 replies
    • 16.3k views
    • 
    • homnspector
    • October 16, 2007

19. Buried oil tank

    By Darren, January 5, 2011
    • 8 replies
    • 15.9k views
    • 
    • hausdok
    • January 6, 2011

20. Age of Williamson Furnace

    By trinin3456, March 18, 2013
    • 4 replies
    • 15.9k views
    • 
    • trinin3456
    • March 18, 2013

21. Furnace Install in Cold Climate Attic

    By Mike Lamb, March 2, 2011
    • 22 replies
    • 15.6k views
    • 
    • Erby
    • November 30, 2013

22. Dating a Burnham boiler

    By hausdok, January 11, 2004
    • 2 replies
    • 15.2k views
    • 
    • hausdok
    • January 11, 2004

23. Burner Nozzle Replacement

    By fabaldwin, October 23, 2008
    • 12 replies
    • 15.1k views
    • 
    • qhinspect
    • January 6, 2009

24. Below 65 degrees??

    By homnspector, August 5, 2005
    • 8 replies
    • 15k views
    • 
    • Erby
    • August 8, 2005

25. Mitsubishi Age Identification

    By palmettoinspect, September 18, 2018
    • 4 replies
    • 14.5k views
    • 
    • Trent Tarter
    • September 21, 2018