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  1. Replies
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    I would suggest looking at the gas piping system....

    I would suggest looking at the gas piping system. It may be undersized resulting in gas supply issues.

    I too currently have ignition issues with a propane boiler. First, the piping was way...
  2. Thanks Dana. Looks like I'll probably stick with...

    Thanks Dana. Looks like I'll probably stick with the Navien unit, assuming the buzzing gas valve can be sorted out. I'm 99% sure it is gas supply related. If I have any other propane appliance...
  3. Interesting that you mention this. I have...

    Interesting that you mention this. I have actually had it set up at 130F fixed supply temp for a little while (since 12/23). It seems to work well. Even with the weather being fairly warm, the...
  4. No, no explanation of why they are replacing the...

    No, no explanation of why they are replacing the entire unit. In general, Navien has been fairly responsive to my questions, but they don't explain much when it comes to troubleshooting my boiler. ...
  5. The weather has been warm here, and I definitely...

    The weather has been warm here, and I definitely found the limitations of the Navien K-factor curves. I woke up this morning to a 66F house, even though the t-stat was set to 68F. It was about 52F...
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    Honeywell should have what you are looking for. ...

    Honeywell should have what you are looking for. I just had a wireless t-stat installed in my downstairs, but it was a simple wireless version (no remote temp sensor, no wi-fi). If you search on...
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    Can you tell us what the boiler temperature is...

    Can you tell us what the boiler temperature is doing during the cycles, and also during the times when the t-stat is calling for heat but the radiators are cool?

    The on/off cycles are most...
  8. The warmer weather operation is definitely my...

    The warmer weather operation is definitely my concern now. I guess I'll just wait for warmer weather to see what my burn times look like. I'l report back on this.


    Yes! I noticed a steady drip...
  9. Found The Limit

    I left the curve at K=1.2.

    Today it warmed up to about 34F outside, and I had a chance to watch the boiler. It is definitely acting a little different than when it was 14F outside.

    The t-stat...
  10. K=1.2 Thermostat set to constant 69F all night...

    K=1.2
    Thermostat set to constant 69F all night
    Outside temp = 14.5F this morning

    After setting the curve to 1.2, I ignored the boiler, which is tough for me because I'm really curious to see how...
  11. I contacted a guy at Myson who suggested...

    I contacted a guy at Myson who suggested bypassing the temp switch and powering the Myson any time Zone 2 calls for heat. I'm not sure how to do that, or if it can even be done. I first thought...
  12. OK, I'll do that. I think I'll set it back to...

    OK, I'll do that. I think I'll set it back to 1.3 and see what it does over a few days instead of just a few hours.

    Looking ahead to temps in the 40s: If I get short cycling, is the only real...
  13. Did I Find the Limit?

    I changed my K-Factor from 1.4 to 1.3 last night. Here's what I got:

    Test started 9:39pm, T-stat set to 69, 17F outside, K=1.3
    17 min burn
    10 min off
    21 min burn
    9 min off
    37 min burn
    8 min...
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    The LP company has tanks & regulators that are...

    The LP company has tanks & regulators that are designed to feed fuel to boilers. Heck, even my LP company couldn't get it right the first time. They installed a single regulator that supplied the...
  15. Thanks for all the info Dana. It's so nice to...

    Thanks for all the info Dana. It's so nice to get some useful info & feedback. My installer just looks at me like I have lobsters coming out of my ears when I ask an efficiency/tuning question.
    ...
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    I would suggest contacting your local propane...

    I would suggest contacting your local propane supplier. Tell them what you are doing, and have them come out and set up a small tank, complete with regulator. Places around here supply them as...
  17. Thanks Dana. Luckily, I did do some testing on...

    Thanks Dana.

    Luckily, I did do some testing on just the downstairs zone (Zone 2) when the supply temp was set to 130 F with an outside temp of 46 F. With Zone 2 calling for heat the whole time,...
  18. Need Help Tuning Navien CH-180 ASME Mod Con Combi

    I'm new to the forum. After lurking around a little and finding a tremendous amount of good information, I decided to join.

    Recently, a Navien CH-180 ASME modulating condensing combination boiler...
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    I know this is a bit of a late response, but I...

    I know this is a bit of a late response, but I just registered and have some input on this topic.

    I recently had a Navien CH-180ASME installed and it did the exact same thing - very rapid flame...
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