Ok everyone...

Outbreak could tell you that I'm a warm weather person because I can't hold body heat....regardless of how bundled. Well, recently moved into a home with a natural gas furnace...it's optimistically 20 degrees outside and my furnace is not working. Just today there has been four service calls with two visits from gas company and I'm currently waiting on the service guy to get here again...every time they say " your unit is weird" (?!). So after reading the manual, my error on the Honeywell furnace is 2+5, indicating a soft lockout where the maximum number of recycles where last recycle was due to limit circuit opening or the limit remained open longer than three minutes....I've googled and haven't had much luck.
Could any of you please put that into english and maybe give ways to fix this?

Found a manual that describes the error you're seeing on the thermostat:
http://www.forwardthinking.honeywell.com/related_links/combustion/univ_integrated_furnace/install/69_2087.pdf

Check: Wiring; restricted airflow through heat
exchanger; clogged filters; slow circulator
fan speed.
Repair: Remove restrictions. Increase airflow
through furnace (increase motor speed,
open more ducts, add more returns)

So check your furnace filter, open all the heater vents, and if that doesn't do it then tell your HVAC guy to see if there's a problem with the circulator fan being blocked, gunked up, or burnt out.

Can you hear the fan start?

If you had a problem with ignition or the gas supply it looks like you'd be having a 2+4 error instead.

Found a manual that describes the error you're seeing on the thermostat:
http://www.forwardthinking.honeywell.com/related_links/combustion/univ_integrated_furnace/install/69_2087.pdf

So check your furnace filter, open all the heater vents, and if that doesn't do it then tell your HVAC guy to see if there's a problem with the circulator fan being blocked, gunked up, or burnt out.

Can you hear the fan start?

If you had a problem with ignition or the gas supply it looks like you'd be having a 2+4 error instead.

I replaced the filter and opened all of the ducts. No problem with ignition or gas supply. I can hear the fan turn on. The furnace will work for maybe 30 minutes before it stops working.

You might just have a unit that is a bit too small to handle exceptionally cold weather and it is working too hard trying to keep up.  I don't remember where you are located,  but there are parts of the country that have been getting weather way colder than they are used to this week.     

You might just have a unit that is a bit too small to handle exceptionally cold weather and it is working too hard trying to keep up.  I don't remember where you are located,  but there are parts of the country that have been getting weather way colder than they are used to this week.     

I'm in the keystone state :-) for now

I'd set it to about 60 to start and see how it does. That's not exactly comfortable but it will keep your pipes from freezing.

See how much time it runs and how long it stays off before starting again. That should give you some idea how high you can go before running into trouble.

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It's about that cold here now. Most authorities suggest that 20.5C (69F) is the optimum setting for a high efficiency furnace in the winter.

Thanks for all of the help guys! Furnace turned off in the middle of the night and I reset the breaker...hasn't turned off since!! Fingers crossed it stays that way!