View Full Version : T-Stat replacement recommendation
earth777
Nov 10, 2008, 12:04 AM
Hello,
I have an old Honeywell Thermostat T8195B. I was wondering what would be a good replacement. Only have furnace heating. No cooling.
Also, the location of the T-stat is in the a place where there is no forced heat vent so it is not the place to measure temperature. I know I can relocate it but I am looking for a wireless remote sensing option if these things exist. My thinking is that I can put the sensor in the bedroom area to control to it.
Thanks!
hvac1000
Nov 10, 2008, 04:29 AM
You want the thermostat located where there is not much air movement. That gives the thermostat a good area for sensing the correct temperature and not around where drafts or moving heated air will cause the thermostat to have a inacurate reading.
There are many different models of thermostats available and from many different vendors.
Honeywell here under hyome products. Just look around
Default - Honeywell Environmental And Combustion Controls (http://customer.honeywell.com/Business/Cultures/en-US/Default.htm)
White Rodgers here
http://www.white-rodgers.com/wrdhom/pdfs/06_Cat_pages/2006_cat_sections/thermostats.pdf
VentStar here
Venstar Thermostat Accessories Venstar Thermostats and Accessories - VenstarThermostats.com (http://www.venstarthermostats.com/index.php?cPath=26)
earth777
Nov 10, 2008, 08:30 PM
Thanks for the quick feedback. Did some research and am thinking of getting one of the two following Honeywell t-stats from my local store
RTH230B $39
RTH6400B $70
Will either work? I have a basic gas furnace with no cooling. Also, any recommendation on which one should I go for?
Thanks.
hvac1000
Nov 10, 2008, 08:53 PM
Take your pick they will both work. You will probably need to use batterys also.
mygirlsdad77
Nov 10, 2008, 09:03 PM
If you only have two wires to your thermostat, I would go with a thermostat that doesn't require a battety to operate(battery dies, furnace dies). Are you looking for a digital thermostat, or would you be contempt with a basic t87f honeywell.
earth777
Nov 10, 2008, 09:45 PM
if you only have two wires to your thermostat, i would go with a thermostat that doesnt require a battety to operate(battery dies, furnace dies). Are you looking for a digital thermostat, or would you be contempt with a basic t87f honeywell.
I prefer a digital t-stat. my old T8195B had power in addition to batteries? Is that the C wire? I always thought the battery was for backup only. IS it different on the RTH230B?
MarkwithaK
Nov 10, 2008, 10:12 PM
If you have a common then you will not need the batteries. If you do relocate the stat remember that it should be placed on an INTERIOR wall, about 5 feet up from the floor.
KISS
Nov 10, 2008, 10:17 PM
Batteries may still be required. With a C wire, the batteries are not ESSENTIAL.
earth777
Nov 10, 2008, 10:21 PM
If you have a common then you will not need the batteries. If you do relocate the stat remember that it should be placed on an INTERIOR wall, about 5 feet up from the floor.
I just read the installation instructions for the RTH230B and there is no C terminal. I guess it is 100% based on batteries.