Best Thermostat for Steam System? Mine may be bad.

JohnNY

....Honeywell T87.

I find it works best with the slow reaction time and limited flexibility of a steam system

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JJJJJ

What is the best thermostat for a more than 70 year old steam heating system?

I have a Dayton Fuel Trimmer, Model 2E501B. I believe mine may have gone bad this evening. I turned it down from about 72F to 60F for several hours to cool the boiler to add water. When I returned the thermostat to 72, the boiler did not fire up, even though the temperature had dropped on the thermostat to about 67F. The pilots are lit on the boiler.

BillW@honeywell

You could use....

our VisionPro 8000 if you need a top-line touchscreen programmable. The FocusPro 6000 is a good alternative if you are on a budget, and still want a programmable. If you have cooling as well, these stats will control that also. If you want a non-programmable, the Focuspro 5000 is a great choice. All are compatible with steam, mercury free, 5 year warranty, very simple to use, and the programmables are EnergyStar rated. They are available from your local heating cooling contractor.

brucewo1b

T87F

If yoiu can't buy them and you can't install them why mention them

Guy_6

t-stat

Be careful blaming the thermostat. What you have described may not be the stat at all, but a boiler that has shut down for some other reason. A plugged pigtail on the pressuretrol giving a false read, or a low water issue.
Thermostats are fairly durable, so I would look toward the system first. As a homeowner, I would not go much further than ascertaining a correct water level in the boiler.
After that I would strongly suggest bringing in a pro.