Search:

I was just at the Lennox factory and every joint gets brazed with nitro.

Wow.

A few things can cause that;

1. bad nozzle (yes even a new one) or dirt in the nozzle from servicing
2. low nozzle pressure ("lots of fuel" doesn't tell me much)
3. air shutter adjusted too far...

A daily drift of 2 degrees would make me unhappy.

The only fieldpiece temperature instruments I use regularly do not have thermocouples. I don't really trust t-couples.

You can get a very good set for $290 with manifold, no need to spend $600+

http://shop.rdholder.com/Digi-Cool-AK900-Digital-Refrigerant-Manifold-Digi-Cool-AK900.htm

How old is it?

Give them a call, I'm sure they stand behind it.

Mine has been fine.

Did it just read zero amps, or did you get an error message?

When a crack gets to the point of leaking, it is hazardous to have air blowing into the HX. This affects the flame and can cause dangerous rollout and elevated CO levels. Wouldn't it be better to...

The problem is, a boiler can go from 10 ppm of CO to 10,000 ppm in seconds if certain outside conditions change. If the flue gases start spilling, the CO produced can spike.

The plain truth is, a technician properly trained in combustion analysis and CO would be able to pinpoint the problem on the first visit. This training is optional and relatively few technicians...

If you scroll down through the tool forum threads, you will soon be able to see the opinions of the guys on this site :)

I would take AK900, no question. The 570 has lots of cool options and...

What flash code are you getting?

Not anymore. Zippers are not covered and to use the zero downtime warranty costs extra.

Boards are repairable too if you know the right guy.

I would like it better if I hadn't gotten used to the TSI first.:o

Testo 320 or Bacharach Insight plus are very good choices.

All Lennox furnaces, a/c and heat pumps except the Merit series are made in Marshalltown, Iowa.

Allied Air has manufacturing in SC I believe for the Armstrong and Airease brands.

You know you want one

Good thing for Doug and Brenda

The manifold block on them looks exactly like the Testo 550.

382101

Here's a great blog post on the subject. http://ncidavid.blogspot.com/2013/05/is-system-effect-impacting-your.html?m=1

Yes, I really like mine, price is right too.

Two or three scenarios can cause it to not come out equal. The first and most likely is duct leakage. The next is the fact that anything between the two static measuring points that is dirty,...

LOL you got me there, twilly does it in a funny Jeff Foxworthy style

And BTW, your third person talk is a tad creepy :.02: just saying :)