Search:

Type: Posts; User: lkaufman

Page 1 of 3 1 2 3

Search: Search took 0.00 seconds.

  1. Replies
    4
    Views
    254

    Did not know I needed to be contractor to...

    Did not know I needed to be contractor to purchase HVAC insulation HD and Lowes sell "junk" in my opinion. Just looking for the type / manufacturer if you could help out. Not looking to break any...
  2. Replies
    4
    Views
    254

    Ductwork Insulation

    Hi Everyone,

    I am doing a small amount of duct sealing (some seams where not sealed and or came apart) and I am looking to replace a bit of the outside insulation. The insulation currently...
  3. Replies
    9
    Views
    1,143

    I am hiring a pro, however I have had several to...

    I am hiring a pro, however I have had several to the house for a quote and each one has a different approach and they are not 100% sure. This is why I am trying get a consensus on the best approach.
  4. Replies
    9
    Views
    1,143

    I am sorry but I dont understand your response. ...

    I am sorry but I dont understand your response. My largest zone is the first floor with 8x20. So you are saying insert an 8x18 instead and connect it where?
  5. Replies
    9
    Views
    1,143

    Thank you for the information. So it sounds like...

    Thank you for the information. So it sounds like the preferred method is a motorized SP bypass damper tied to a SP switch rather than the 25-30% oversizing of the ductwork? My contractor says the...
  6. Replies
    9
    Views
    1,143

    Plenum Sizing with Variable Speed Furnace

    Hello,

    Sorry in advance for the lengthy post.

    Currently have Nat Gas 90% AFU furnace that is 12+ years old and was way oversized for the house (120k BTUh vs 75k BTUH with 20% oversizing) so I...
  7. Thread: Load Calcs

    by lkaufman
    Replies
    4
    Views
    423

    Hi Everyone, The existing furnace is singe...

    Hi Everyone,

    The existing furnace is singe stage 120KBTUH at 91% or 112K BTU

    The furnace was constantly short cycling. In looking at the ductwork, it appears to have been sized for a 70-75K...
  8. Thread: Load Calcs

    by lkaufman
    Replies
    4
    Views
    423

    Load Calcs

    Hi Everyone, wanted to bounce some numbers of off the professionals.

    Getting ready to replace furnace. Did my own heat load calc using the tool discussed on this site, with 20% factor came to 70K...
  9. Replies
    9
    Views
    1,297

    Thank you for the reply. So it does sound doable...

    Thank you for the reply. So it does sound doable with a zone controller and the proper 2 stage stats? Sound like the key is sizing the main trunk for that zone to the cfm of the blower on low fire...
  10. Replies
    9
    Views
    1,297

    Furnace Replacement

    Hi Everyone, I am getting ready to replace my furnace and had a few questions about what I would like. I have 3 contractors comming over but wanted to get the pro's opinion. Did a manual J and have...
  11. Replies
    14
    Views
    687

    Thanks. I had 2 companies come out an look at...

    Thanks.

    I had 2 companies come out an look at the unit. Basically they both said the same thing, although 1 wanted to try to reduce the gas pressure from 3.5" to 3.2" to see if this would help as...
  12. Replies
    14
    Views
    687

    you are 100% correct, no way I am looking to...

    you are 100% correct, no way I am looking to derate that much. My contractor is working the numbers with armstrong but he is thinking if he can de-rate 20% that should put my temperature rise to...
  13. Replies
    14
    Views
    687

    Thank you for the reply. I fully understand that...

    Thank you for the reply. I fully understand that you can not and won't provide DIY help. I am in no way looking to do something like this myself, in fact the contractor that I had come and look at...
  14. Replies
    14
    Views
    687

    Furnace Issues

    Hi Everyone,

    In know this is not an DIY site but wanted to get input after speaking with several contractors. To make a long story short, about 6 years ago 125K BTU Armstrong 91% furnace was...
  15. Replies
    6
    Views
    2,668

    Thanks, how far down the trunk line should I...

    Thanks, how far down the trunk line should I check? I did check the name plate and it says 75F max rise. Since the furnace was installed I have known they undersized the ductork, cuasing the higher...
  16. Replies
    6
    Views
    2,668

    temperature rise in furnace

    Checking out the furnace and I took some temperature readings, at the discharge, about 24" above the burners, I was reading 162F, inside the return air cabinet at the blower (with the door closed) I...
  17. Replies
    6
    Views
    651

    I was simply thinking of the basics ignitor,...

    I was simply thinking of the basics
    ignitor, blower and induced draft motor
    the tech said the ignitor is off the shelf but the blower (5 speed) and induced draft motor are not "standard" and take...
  18. Replies
    6
    Views
    651

    My tech is pretty good but he did say the parts...

    My tech is pretty good but he did say the parts usually take 1-2 days to get in and then the install. So I am considering getting some spare parts as I do have small kids in the house and going...
  19. Replies
    6
    Views
    651

    Armstrong Ultra 91

    Hello, I have a 125KBTU natural gas furnace that is 10 years old. The furnace has given me no problems in the last 10 years, maintenance has been performed regularly.

    My service tech said what...
  20. Thread: Mr Slim

    by lkaufman
    Replies
    13
    Views
    1,217

    HI EverettsHVAC, I do have the operational and...

    HI EverettsHVAC,

    I do have the operational and service manuals. You are correct, it only has a timer (run from 10-2 lets say), however I can not perform setback functions and on/off at different...
  21. Thread: Mr Slim

    by lkaufman
    Replies
    13
    Views
    1,217

    iraqveteran, thanks. I have also looked at the...

    iraqveteran, thanks. I have also looked at the manual and the only control wiring that I can see is to the outdoor condenser, it appears that the unit has an IR board that is controlled by the...
  22. Thread: Mr Slim

    by lkaufman
    Replies
    13
    Views
    1,217

    The model is Mitsubishi MSH15TN and the serial is...

    The model is Mitsubishi MSH15TN and the serial is 3000974.

    Thanks for the help.
  23. Thread: Mr Slim

    by lkaufman
    Replies
    13
    Views
    1,217

    iraqveteran, thank you

    iraqveteran, thank you
  24. Thread: Mr Slim

    by lkaufman
    Replies
    13
    Views
    1,217

    Hi Everyone, Some assistance would be most...

    Hi Everyone,

    Some assistance would be most appreciated.

    Thanks in advance.
  25. Thread: Mr Slim

    by lkaufman
    Replies
    13
    Views
    1,217

    Mr Slim

    Hello,
    I have a Mr. Slim ductless heat pump MSH15TN. The unit has a remote control for operating heating/cooling, vane position, etc. Is there a way I can connect a setback thermostat to the unit?...
Results 1 to 25 of 70
Page 1 of 3 1 2 3
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event