HVAC Forum

1,663 topics in this forum

1. AC Refrigerant Leak?

   By Mike Lamb, December 19, 2019
   • 3 replies
   • 2.2k views
   • 
   • Freezer man Fran
   • April 22, 2020

2. What is that white powder on heating appliances and vents? Here's the answer...

   By Mundo Inspector, April 13, 2020
   • 6 replies
   • 1.4k views
   • 
   • Erby
   • April 17, 2020

3. Identify this stuff please

   By gary the home inspector, April 3, 2020
   • 6 replies
   • 1.2k views
   • 
   • gary the home inspector
   • April 5, 2020

4. Gray powdery substance blowing out of my HVAC registers

   By Bobbie, February 27, 2020
   • 7 replies
   • 4.4k views
   • 
   • hausdok
   • March 23, 2020

5. Electric bill doubled after new gas furnace install

   By lnm1016, January 29, 2020
   • 2 replies
   • 984 views
   • 
   • Jerry Simon
   • January 30, 2020

6. Out of curiosity, whats this cylinder on an old Lennox humidifier

   By ejager, January 24, 2020
   • 4 replies
   • 1.3k views
   • 
   • Les
   • January 27, 2020

7. Old WESCO limit switch?

   By jas0578, November 30, 2019
   • 1 reply
   • 2.5k views
   • 
   • Jim Katen
   • December 2, 2019

8. Dust from old HVAC vents

   By nathan.schlingmann, November 29, 2019   

   • hvac
   • dust
   • 1 reply
   • 1.3k views
   • 
   • Marc
   • November 30, 2019

9. Single Wall Furnace/Water Heater Vent Through Wall To Chimney

   By DPugh, November 23, 2019
   • 5 replies
   • 1.4k views
   • 
   • ejager
   • November 25, 2019

10. Airco Turbo 8300 model TH-150H cycles on and off

    By Bruce Cahoon, November 13, 2019   

    • 8300
    • turbo
    • (and 2 more)

      Tagged with:

      • 8300
      • turbo
      • airco
      • r2000
    • 19 replies
    • 3.7k views
    • 
    • Jim Katen
    • November 16, 2019

11. Gas Dryer

    By Ponyboy, March 12, 2010
    • 18 replies
    • 11.3k views
    • 
    • Johnnyboy
    • November 15, 2019

12. What happened to the Williams Obsolescence chart

    By HenryLemmon, November 8, 2019
    • 1 reply
    • 812 views
    • 
    • Jim Katen
    • November 9, 2019

13. Fiberglass as fire blocking

    By Mike Lamb, August 21, 2019
    • 4 replies
    • 1.7k views
    • 
    • inspector57
    • August 22, 2019

14. Very Cold, Very Old AC

    By Jim Katen, July 4, 2019
    • 17 replies
    • 2.5k views
    • 
    • mgbinspect
    • August 1, 2019

15. Sears System Guardian

    By Garet, January 27, 2012
    • 6 replies
    • 5.4k views
    • 
    • Samantha
    • July 3, 2019

16. Red Plugs in Cat 4 Vent

    By Mike Lamb, June 19, 2019
    • 2 replies
    • 1.5k views
    • 
    • Jim Katen
    • June 19, 2019

17. Two AC compressors and one air handler

    By Mike Lamb, June 13, 2019
    • 7 replies
    • 2.1k views
    • 
    • Jim Katen
    • June 15, 2019

18. Vented condensate drain

    By Marc, June 5, 2019
    • 2 replies
    • 1.9k views
    • 
    • Jim Katen
    • June 6, 2019

19. New Name, Same Equipment

    By Bill Kibbel, April 25, 2019
    • 6 replies
    • 1.6k views
    • 
    • Marc
    • April 27, 2019

20. Stand-Alone Gas-Fired "Boiler/Radiator"

    By Rob Amaral, April 9, 2019
    • 2 replies
    • 1.1k views
    • 
    • Marc
    • April 9, 2019

21. Furnace Chimney - Connecting new stuff to old stuff

    By R. Reader, April 3, 2019   

    • hvac
    • chimney
    • (and 1 more)

      Tagged with:

      • hvac
      • chimney
      • roof
    • 1 reply
    • 1.1k views
    • 
    • Jim Katen
    • April 4, 2019

22. Rusted Furnace Exhaust Discharges Into Attic

    By Mark P, March 16, 2019
    • 4 replies
    • 1.8k views
    • 
    • Erby
    • March 28, 2019

23. tonnage of chrysler airtemp condenser

    By walterb, June 19, 2013
    • 8 replies
    • 7.9k views
    • 
    • tplnc
    • March 5, 2019

24. Furnace Plug/Knockout Required?

    By greyboy39, January 11, 2019
    • 1 reply
    • 3.1k views
    • 
    • Jim Katen
    • January 12, 2019

25. Common Wire Connection at Furnace

    By Rebecca, December 30, 2018   

    • hvac
    • common wire
    • (and 1 more)

      Tagged with:

      • hvac
      • common wire
      • c-wire
    • 5 replies
    • 1.7k views
    • 
    • Jim Katen
    • December 30, 2018