Myth:Mercury-bulb thermostats should be replaced because they are inaccurate. Fact:Mercury bulb thermostats are among the most accurate for temperature control within the HVAC industry. Cheap electronic thermostats provide inferior temperature control.
Is it worth it to replace thermostat?
Generally, it’s a good idea to replace your thermostat roughly as often as you replace your climate control systems. So, every time you replace your air conditioner or heater, you should be installing a new thermostat as well.
How long do mercury thermostats last?
Although a mercury filled thermostat may last 20 years, or more, the mechanical parts begin to wear out long before that, becoming less accurate and therefore less efficient over time.
How do I know if my mercury thermostat is bad?
There should be an open circuit when the mercury is not contacting the wire contacts and a closed connection when it is. If the thermostat fails either of these simple checks, it is defective. The easiest way to check thermostat function is to jump across the terminal screws with a jumper wire.
Can you still get a mercury thermostat?
If You Still Have A Mercury Thermostat, Now Is A Good Time To Upgrade! New thermostats are not only mercury-free and safe for your family, but programmable thermostats also help your home be more energy-efficient.
Does changing thermostat make a difference?
A new thermostat will definitely make a difference in terms of convenience and comfort, as your system will be better and work more efficiently while saving you money. If you are planning to upgrade your thermostat, you can talk to Service Champions.
How do you know if you need a new thermostat?
In most cases, the thermostat will produce a small clicking sound when the changes are made, then the heating or cooling equipment will start. If this clicking sound doesn’t occur, or if the system doesn’t come on shortly after the changes are made, the thermostat may need replacing.
Can mercury thermometers go bad?
Thermometers do not expire, but they do have to eventually be replaced. Digital thermometers will last about 3 to 5 years, while mercury thermometers will last indefinitely as long as they aren’t cracked or damaged.
Are mercury thermostats reliable?
Fact:Mercury bulb thermostats are among the most accurate for temperature control within the HVAC industry. Cheap electronic thermostats provide inferior temperature control. Myth:Mercury bulb thermostats are hazardous and should be removed.
Do old thermostats wear out?
5. Thermostat Is Too Old. As with all other systems, your thermostat will eventually become old and outdated. The lifespan of most home thermostats is 10 years.
Do modern thermostats use mercury?
Many thermostats use mercury switches, but as long as a thermostat is intact, it isn’t dangerous. Electronic and magnetic snap switch thermostats don’t contain any mercury. To identify whether a thermostat contains mercury, remove the front plate.
What is the advantage of a mercury thermostat?
Mercury thermostats use mercury switches to sense and control room temperature through communication with heating, ventilating, and air conditioning (HVAC) equipment. Mercury thermostats contain bimetal coils that contract and expand with room temperature.
Can you replace a mercury thermostat with a digital?
Sometimes you have to flip the switch on the back of the thermostats depending on which type of system you have. If you’re going from mercury to a modern age digital thermostat the process can be simple if you just watch what you’re doing to pay attention.
Can you replace an old thermostat with a digital one?
Replacing your analog thermostat with a digital one is a great way to save on your heating bill since digital thermostats are able to control heat more precisely.
How does a mercury switch thermostat work?
Mercury thermostats contain bimetal coils that contract and expand with room temperature. When the coil contracts or expands, it activates the mercury switch, which opens or closes a circuit to make the furnace, heat pump, or air conditioner turn on or off.
How do I change my mercury thermostat?
Quote from Youtube video: So that we can remember what color goes to which point connector. Let's take the wire out by loosening the.
How many wires does a mercury thermostat have?
The most basic thermostat has 2 wires; usually a red and a white wire. Two wire thermostat wiring is used for furnaces only and usually doesn’t need a “C” or “Common” wire.
How do you clean a mercury thermostat?
Quote from the video:
Quote from Youtube video: And a little bit on the spring back there so I'm going to use some wet wipes and carefully clean it off but I do want to show you something cool and something need to be careful.
Do mercury thermostats have AC wire?
When taking off the cover of your thermostat—depending how old the thermostat is—you might see mercury in a glass phial. If you do, you have an old “mercury blob” thermostat which likely does not have a C-Wire. However, to be sure, check the wire connections either on the front or back of your thermostat.
Does a mercury thermostat need power?
The old mercury thermostats did not require any power. Modern thermostats have many extra features that need additional power such as a large screen or wireless connection. Thermostat wire connects the thermostat to the air handler or furnace allowing for communications between the two.
What color is C wire on thermostat?
Blue wires
Blue wires are also called “C” wires because they are the Common wire. C wires are necessary for any “smart” thermostat that needs to be connected to a power source 24/7, regardless of your heat pump type.
