Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Combustion results

Couderay
Couderay Member Posts: 314
in THE MAIN WALL
Start of heating season tune up and general maintaince. Three seasons old on a 140M Muchkin. Got up north only to find a cold house. Out door reset not working right, no spare had to disable. Cleaned out combustion chamber flushed the condensate drain. Put all back together and lo and behold we got fire on first attempt. Took out analyzer and went to testing here are the results.

Comments

  • Chas_2
    Chas_2 Member Posts: 104
    e group instruments

    Hello Joe ,what do you think of the e group tester ? i have a model 2000 on order and waiting ,peace and good luck clammy
  • Couderay
    Couderay Member Posts: 314
    Analyzer

    Got this bad boy from the shop I work for. First time I ever used this one and the 3rd time in my life ever using one. Read the book super easy to use very nice package. Printer is self contained. I'm no one to give results as to infrequent use of such. Talked to service guy I received it from said it was the best one yet. Has been with company over 16 years.
  • Jim Davis_3
    Jim Davis_3 Member Posts: 578


    Any idea what the temperature of the water returning to the boiler might have been while doing the test? Always wondered how a heat exchanger can heat water when it is cooler than the water?
  • Couderay
    Couderay Member Posts: 314
    Return water

    Temp of retun water at high fire was 180+or- did not check at low fire will pay attention next time.
  • Jim Davis
    Jim Davis Member Posts: 305


    Your 137 degree and 103 degree flue temperatures are the temperatures of the last heat exchanger surface in the boiler. This means that the heat exchanger is extracting heat from the water instead of heating it. This is an indication of excessive underfiring and poor efficiency. Calculated efficiencies on analyzers are increased by underfiring while actual delivered efficiency of equipment goes down. Trick used by manufacturers to get high ratings.
  • realolman
    realolman Member Posts: 513
    Why

    is there so much excess air. Why wouldn't you want the amount of air to more closely match the amount needed for combustion.
  • Couderay
    Couderay Member Posts: 314
    any recomendations

    I used the anaylzer to check CO and CO2 as to why other numbers are why they are sorry I don't know. According to literature on CO/CO2 I was within the parameters. Excess air was due to having the cover off at the time of this testing. I also did testing with cover on but do not have printouts. This is in my house up north and installed by my self. Any comments would be appreciated. Thanks
This discussion has been closed.

Categories