\"High tech thermostat\"

GP

Greetings to all,

I'm the maintenance super for an old church in Chicago. We heat the bld about once per week for Sunday morning. I keep the weekday temp at a minimum of about 55 degrees. To conserve fuel, I'd like to install a "smart thermosat" to control the operation of the boiler.

Currently my M.O. for heating the bld is I turn the heat on Sat night about 9:00 pm. Then by Sunday morning things the temp is at a comfortable 70 degrees. Since I doubt it's necessary to turn the heat on that early, I'm sure we're wasting fuel. So, my question(s) are:

1. Does a "smart thermostat" really exist and work? I've been told they are programed to learn how long it takes to heat the bld the previous weeks and adjust accordingly. (What brands and models do you recommend?)

2. Does something exist that can be hooked up to read the outside temp? Or is this even necssary? If it's 20 below, wouldn't it be "smart" enough to figure, "hey, I need to turn on really early this weekend..."

3. If nothing like this exists, is there any software out there to run a thermostat to do the above and more?

Thanks in advance for your responses,
Gene.

will smith_2

stats

Gene-
What type of system do you have? Is it hot water or steam?

BillW@honeywell

Try ...

It sounds like the Honeywell T8602D will do what you want. It is a 7 day programmable, 4 periods/day and features "Adaptive Intelligent Recovery" which has the space at the setpoint temperature when the new period begins, not merely recovering. You can add an optional Outside Temperature sensor, and this unit also features programmable range stops, so that no one can exceed your settings. The full part number is T8602D2018,and it will work with gas or oil fired steam, hydronic or forced air. You will need to set it to 1 CPH if you have steam, 3 CPH for hydronic, it is factory-pre set for 6 CPH for forced air. It can also run cooling. This model is available from your heating/cooling contractor. The retail models do not have these features. Check out www.honeywell.com/yourhome for more info.

bb

Danfoss 8000 Series Thermostat

Gene:

You could try the Danfoss 8000 Series Thermostat. We have optimal start control incorporated into the stat. Please feel free to contact me for more infomration.

GP

It's a steam system. We've recently installed a new system. It's about 1 mil BTU.

Gene.