It’s essentially 0-100% of whatever heating or cooling capacity your system offers. Since you’ve told us nothing about it, I can’t say anything more. Please revise with useful information. The answer given here in comments is correct – they are just relative numbers like on a stereo system volume control.

What do the numbers on thermostat mean?

You will see a number on the thermostat display. This number is the ambient temperature in your home. Use the up and down arrows on the thermostat to set the temperature you want the home to reach. You will see a different display number come up that corresponds to the temperature you set.

What number should thermostat be on?





What do the independent experts say? The Energy Saving Trust recommends heating your home to between 18 to 21 degrees Celsius during winter. And The World Health Organisation (WHO) suggests 18 degrees is the ideal temperature for healthy and well-dressed people.

What does 1 mean on a thermostat?

A single stage heating or cooling system means your furnace or air conditioner has only one level of heat or cold output. Single stage thermostats are used to control single stage HVAC systems—thus, if you have a single stage heating and cooling system, your home needs a single stage thermostat.

How do you read a thermostat?

At its core, a thermostat is simply the controls used to regulate temperature in a heating system. You can set a preferred temperature, and the thermostat works to keep your room or boiler at this desired level. If the home starts to drop in temperature, a thermostat switches the heating on to warm it up.

What do the letters mean on thermostat wiring?

W, W1, W2: Just like the Y wire, the W wire(s) control the heating aspect of your system. O, B, O/B: These wires are responsible for switching the changeover valve in a heat pump system. The O wire reverses the valve from heating to cooling, and the B wire switches the valve from cooling to heating.

What are the terminals on a thermostat?





R, RH & RC Terminals

It runs to the R, RH and RC terminals, depending on how the thermostat is used. In some cases, HVAC systems consist of a transformer for cooling and another one for heating. Additionally, a system may consist of a power wire for heating and another for cooling.

What temp should I keep my house?

between 68 to 78 degrees Fahrenheit

Depending on the season, the ideal house temperature for both comfort and efficiency is between 68 to 78 degrees Fahrenheit. In the summer, the recommended thermostat setting is 78 degrees F. In the winter, 68 degrees is recommended for energy savings. However, these temperatures aren’t perfect for every situation.

What is the best temperature for sleeping?



approximately 65 degrees Fahrenheit

The best bedroom temperature for sleep is approximately 65 degrees Fahrenheit (18.3 degrees Celsius). This may vary by a few degrees from person to person, but most doctors recommend keeping the thermostat set between 60 to 67 degrees Fahrenheit (15.6 to 19.4 degrees Celsius) for the most comfortable sleep.

Why is my thermostat reading higher than setting?

Inspect your thermostat – it may be broken or dirty



Check for dust, dirt, and other kinds of residue inside the thermostat. Excessive dust and dirt buildup can prevent your thermostat from working properly. Clean any residue you see on the thermostat, and see if that helps improve the temperature in your home.

Does the thermostat read the temperature?

Thermostats measure the temperature of the room that they are placed in via an air sensor and/or a floor sensor.

Do you turn the thermostat up or down for air?

When we want it hotter we turn the air up. It makes perfect sense because pressing the down button on the thermostat makes it colder, etc. We turn the air down for cooler and up for warmer.

How many degrees should you turn down your thermostat at night?

Set your thermostat to 68 degrees Fahrenheit in the winter



The energy saving key is lowering the temperature (about 10-12 degrees Fahrenheit or 6-8 degrees Celsius) at night or when you’re away.

What do the numbers on an air conditioner mean?

This shows how effective a unit is at cooling a space. An air conditioner’s BTU rating is important to your purchase decision because it tells you the unit’s cooling capacity – how much cooling it is capable of providing for the home. Residential air conditioners usually have BTU ratings between 18,000 to 60,000.

What should you set your thermostat at in the winter?

For winter, the ideal thermostat temperature is 68 degrees Fahrenheit when you’re at home. Energy.gov 68 degrees is a good room temperature while you’re awake at home, but recommends lowering it while you’re asleep or away. Lowering your thermostat 10-15 degrees for eight hours can reduce your heating bill by 5-15%.

Is 72 a good temperature for heat in the winter?

And don’t be afraid to drop your thermostat even lower at night – even in winter. If you’re at home in the daytime, 72° F (22° C) is a good start, but aim for 68° F (20° C). If you’re not at home in the daytime, or you’re asleep at night, we feel 66° F (19° C) to 62° F (17° C) is best.

Is 70 too high for thermostat in winter?



It’s best to not set your thermostat lower than 70 to 72 degrees. Most units are not designed to cool a house below that point, and you risk the system freezing up.

Is 72 too high for thermostat in winter?

68 to 72 degrees is a temperature range that is not too warm or cool, and is sufficient enough to warm up the home just enough so that everyone is comfortable regardless of the type of clothing they have on.

Is 65 too cold for house?

People who are sick may have special problems keeping warm. Do not let it get too cold inside and dress warmly. Even if you keep your temperature between 60°F and 65°F, your home or apartment may not be warm enough to keep you safe.

Is 78 too hot for a house?

Any time you’re awake and at home during the summer, the ideal thermostat temperature is 78 degrees. This home temperature for energy efficiency lowers your cooling bills by 12 percent compared to keeping it at 74 degrees. If you’re afraid 78 degrees is too warm, remember to dress for the season.