On a thermostat, Set refers to the temperature you are targeting at any given time. Hold is an override function that locks in your currently set temperature, pausing your programmed daily schedule until you manually cancel it.
The Run setting on your thermostat tells it to follow your pre-programmed daily schedule. The Hold setting overrides that schedule, locking the current temperature in place until you manually cancel it.
Comfort, Energy, and Balance
Your thermostat's programmed schedule is designed to save energy by reducing heating or cooling when you don't need it—like while you're asleep or away. Using Hold long-term can eliminate those savings, leading to higher utility bills.
Although comfort is personal and can vary, a generally comfortable temperature for a house is often set between 68 and 72 degrees Fahrenheit. This range is considered ideal for most people to feel comfortable indoors.
Using the hold feature saves energy only if you set the temperature to a more efficient level than your normal schedule, such as setting a permanent hold at a low temperature while on vacation. However, constantly using hold to bypass an energy-efficient schedule can lead to higher energy bills.
Setting to 65 degrees in Winter and to 78 degrees in Summer while at home and switching to energy saving mode when away can help save energy.
Use thermostatic radiator valves
If the room is warmer than the setting on the TRV, the valve will close a little. This reduces the volume of hot water flowing into the radiator. If the room temperature is lower than the valve setting, the valve opens, increasing the flow of hot water into the radiator.
It takes time for your home to warm up and cool down. If you're not sure how long it takes, try turning the heating on about 30 minutes before you need it. You should turn it off 30 minutes before you'll stop needing it.
While 67°F is on the cooler side, it is generally not considered dangerously cold. Major energy and health organizations typically recommend indoor winter temperatures between 68°F and 72°F, making 67°F a common setting for saving on heating bills.
Keep your thermostat set to a minimum of 55°F (13°C) to keep your pipes from freezing. If you are leaving the house for an extended period, maintain this temperature to ensure heat reaches the walls where pipes are located.
The cheapest temperature to keep your house in winter is 68°F (20∘C20 raised to the composed with power C𝟐𝟎∘𝐂) while you are home, and lowering it to 61°F–65°F when you are away or sleeping, according to the Department of Energy. Setting your thermostat back 7°–10°F for 8 hours can save up to 10% a year on heating costs.
During winter, the lower the interior temperature, the slower the heat loss. So the longer your house remains at the lower temperature, the more energy you save, because your house has lost less energy than it would have at the higher temperature.
Typically, a furnace should cycle 3 to 8 times per hour, running for about 10 to 15 minutes each time. If it's cycling more frequently (short cycling) or running for 20+ minutes straight regularly, something's not right.
How can you tell if a thermostat is bad?
For most customers, we recommend turning on your furnace when the weather is consistently below 18° Celsius, which usually happens to be around the end of September, or early October. Some homeowners try to put off turning on their furnace as long as they can to save money, which is okay if you're healthy adults.
65 Degrees is (Nearly) the Perfect Temp
For most people, 60 is a chilly sweater-friendly temperature, while going over 70 can get a little toasty. The most efficient setting for your thermostat is around 65 degrees in the winter when temperatures outside have dropped to 50 or below.
An unsafe temperature depends on whether you are worried about human health or protecting your property from damage.
According to the U.S. Department of Energy, the best AC temperature for saving energy is 75–78°F (25.5°C) when you're at home and need cooling. Increase the temperature by about 7°F when no one is home to significantly reduce energy consumption.
Heating and cooling (HVAC) systems are the biggest energy consumers in a typical house, accounting for roughly 45−50% of your total electricity usage. Water heaters, refrigerators, and lighting round out the rest of the major draws.
Known for his practical tips, Lewis introduced the '4pm rule' which involves using curtains strategically to retain heat. He suggests opening curtains when the sun rises at around 8:30am to let in natural warmth, and closing them by 4pm to keep the heat inside.
Main causes for high gas bills
Even at a low temperature, keeping your heating on for extended periods will burn through more energy, and more money. Generally speaking, it's best to turn your heating on only when you actually need warmth to keep your home warm without overspending.
It is generally cheaper to turn your heat down or off when you are away for long periods (like an 8-hour workday) rather than keeping it at a constant, high temperature. While heating back up takes more energy, the savings from the lower average temperature outweigh the cost of re-heating, saving up to 10% on energy bills.