Trouble with house thermostat

Status
Not open for further replies.
Joined
Oct 11, 2004
Messages
106
Location
upstate n.y
Looking for some advice here guy's,...I have a propane gas furnace that heats my office and I know the thermostat is not working correctly. Here's the scoop during the day I heat my office with a 23,000 btu (kero-sun) kerosene heater, it can warm this office up to 100% if I keep it going long enough, and at night I turn on the propane furnace, this winter I notice that I have been using a LOT of propane.I notice that the temp gauge on the thermostat for the furnace is way off. I put up 3 out door temp gauge's around the room the other morning and turned on the kerosene heater, after running for 2 hours the temp gauges that I put around the room all read 80 and the temp gauge on the thermostat reads 50, I check the thermostat with a level and it is level, This thermostat is a programable one and is about 25 years old, Do they go bad? for the past few days it has been off anywheres from 20-30 degrees than what the temp gauges that I placed around the room are reading which leads me to think that it is kicking on the furnace premature Thanx kkat
 
I don't know about propane but I had a similar problem with the old analog style thermostat on my (electric) central heat & AC here. It would run and run and never turn off and the temp on the thermometer was always about 5 degrees off one way or the other. I picked up a cheap digital one at Walmart for 20 bucks, problem solved. AC and heat both cycle exactly like they are supposed to. The only issue I had was the first replacement thermostat failed, it would keep turning on and off repeatedly. Walmart exchanged it for me and the new one has been working fine ever since, 4 or 5 months now.
 
Buy a somewhat "name brand" digital thermostat.

The cheap ones will die when it is 0 degrees outside on a holiday.

You might have to spend 25 dollars, but you do get 25 dollars back on your taxes if you buy an energystar rated one.

The ones I purchased were LUX brand and they work fine. They replaced a six month old walmart one (I forget the brand)..

I like to get one that has a schedule for every day, so you can have it call for heat once you leave the office at a certain time, and you don't have to worry about it.
 
The one I got at WM is a name brand. It's the "Just Right" model made by Hunter, the same company that is famous for making good quality ceiling fans. I figure the innards on this one and the programmable ones are the same, the only difference is it is not progammable. And a programmable thermostat would not really work for my girlfriend and me because we don't keep a set schedule. She works retail and is often home when I am not, and vice versa. So far the 20 buck thermo is fine for us.
 
32.gif
Aren't the batteries just for memory preservation? Do digital thermostats run on the 24 volts from the furnace, and simply have high enough impedance they don't trip the furnace relay coil until they want to? If I'm right, that could explain how they fail in a berzerk fashion when they go...
 
Mostly to preserve memory, but some operate on them. Most run off the furnace transformer, but some can use batteries if the cable lacks the common wire older thermostats didn't need. Some use the transformer without the common wire.

Stay away from the Lowes and HD house brands. Some Honeywell products are every bit as good as their oil filters. My son in law gave us a Hunter for Christmas. I took it back and got a Lux that I was able to figure out how to program.
 
Just get a new one. Go w/ either Lux or Honeywell. We have had a Lux for 9 years and like the ease of use of the programmable feature. We went with the Lux because it was the least expensive and the CR best buy at that time.
 
Originally Posted By: Pop_Rivit
It's 25 years old. Replace it. New ones are cheaper than wasting propane.


+1 Get a programmable one...set it and forget it.
 
Status
Not open for further replies.
Back
Top Bottom