New Thermostat

Larry_10

Can someone recommend a good, stable thermostat that isn't fancy but has day temp and night temp settings.

We have a steam boiler that ran on coal and now runs on gas.

Many thanks for any help.

Uni R

Honeywell CT3600/CT3697

Not very fancy looking but fancy enough to try and help you have the temperature be fully back at the selected time instead of just starting at a certain time and ending whenever. It will also change your clock back each fall and ahead each spring. As long as you don't need a 120v unit, this is a pretty nice unit.

soot_seeker_3

ct3600

the ct3600 is the best valve for the dollar technology wise but mine doesn't do day light savings - though if used only for heat during the fall / spring that really won't matter since you can leave it set that way [dst] all year. maybe the ct3697 does dst - don't know.

ss

BillW@honeywell

Those are retail models...

the trade model is called the "VisionPro" and features a touch-screen operation. 7-day programmable, 4 periods per day, works with gas or oil fired steam, hot water or forced air, and 1 heat-1 cool heat pump. Battery powered, mercury free, lighted screen, EPA EnergyStar certified. Part number is TH8110U1003, and it's available from any Honeywell distributor, or through your heating/cooling pro.

Maine doug_5

I love my VisionPro

Bill, this stat appears to be learning from day to day. As it gets colder, the heat comes on earlier in the morning although I am not upstairs in the shop to hear the relay. But the temp is at the desired point so I am assuming that it must be averaging the time from on to reaching setpoint.
Maybe I could read the manual again...nah, we don't stop for directions! I must post a picture, the vault door sort of makes the stat look smaller.

BillW@honeywell

Thanks for the kind words!

You are absolutely correct, the VisionPro has what's called "adadptive intelligent recovery", which allows it to have your home at the comfort setting when the wake or return period begins, not just start at a preset time like the old mechanical units did. It gradually ramps up the temp from setback/setup to the comfort level. Thanks for using our products.

adambuild

VISIONPro 8000

Bill from Honeywell is right! He steered me onto these beauties early this season. I've already installed about 10 of them and they work great! They're also incredibly easy to program and they automatically switch the time for DST. Kudos to Honeywell!

adambuild

VISIONPro 8000

Bill from Honeywell is right! He steered me onto these beauties early this season. I've already installed about 10 of them and they work great! They're also incredibly easy to program and they automatically switch the time for DST. Kudos to Honeywell!

RobLC

About those thermostats...

Grateful for all the time and thought on your input here. This is great info.

Can any of the guys in the field or the Honeywell pro tell me if getting the fully electronic thermostat, with its near exactness, make our boiler short-cycle whenever the temp drops a half degree?

David Efflandt

Cycles/hr setting

There is a system type setting (which is actually cycles/hr). I believe a setting of 1 means it will not start more than once per hr. But mine (CT3600) rarely starts that often unless weather is extreme. Automatic anticipation keeps the temperature fairly steady (less swing than RobertShaw electronic that came with my home).

The only short cycling I ever get is NOT due to the thermostat, it is pressure cycling due to an oversize boiler (if it runs long enough).