Efficient Heating of the Houses in cold countries

 I have been living in Nordics last 6 years in few countries. cost of heating the house is 4X or 5X higher than the cost of electricity and it went high in last 2 years due to war situations. We used to follow different techniques either to keep the heating continuously on during winter seasons or switch on and off during different times of the day. Today i spent an hour to do research which is the best approach. 

Analysis from District Heating Provider Website

Initially went through my district heating provider, analyzed my bills across the months in this year and compared with last year. There is a notification, the price will further increase from 1 April 2024 in Denmark. Got few general tips.

5 Tips to save heat

Below we have gathered some tips on what you can do at home to get the most out of your district heating. Here is a quick overview of our good advice, which is elaborated on this page.

1. Keep an eye on your heat consumption
2. Check your radiator and underfloor heating
3. Set the temperature of the hot water
4. Insulate your home and heating pipes
5. Air out and find a suitable room temperature

Also got few upselling from them to take Heating+ services with regular checkup with certified plumber on a regular basis. It consumed almost an hour, I got a view on my spend and usage, but didn´t achieve any optimization.

Analysis with Chat GPT

Went to Chat GPT to get the advice. tested my prompt engineering skills, it gave good suggestions very precisely.

Prompt 1: Which is better option? Option 1: continuously keep the heating on in the house , Option 2: switch off in the night and switch on in the morning 

Choosing between continuously running heating or turning it off at night depends on several factors, including the type of heating system, the efficiency of your home insulation, the climate you live in, and personal comfort preferences.

Option 1: Continuous Heating

Pros:

Maintains a consistent temperature, which can be more comfortable.

Can prevent the risk of pipes freezing in very cold climates.

Some modern and efficient heating systems are designed to run continuously at lower power rather than turning on and off.

Cons:

May lead to higher energy usage and costs, especially if the house is not well-insulated.

Continuous use can put more wear and tear on the heating system over time.

Option 2: Turning Off at Night

Pros:

Can save energy and reduce costs if the drop in temperature at night isn't significant and the house retains heat well.

Less energy waste, especially in well-insulated homes that don't lose heat quickly.

May extend the life of the heating system due to less continuous use.

Cons:

Can be uncomfortable if the house gets too cold by morning.

Risk of pipes freezing if the temperature drops too low in cold climates.

The heating system might consume more energy to reheat the space from a lower temperature in the morning.

Energy Efficiency Considerations:

Programmable thermostats can help optimize heating schedules to reduce energy consumption without sacrificing comfort.

The efficiency of heating up from a cooler temperature versus maintaining a constant temperature can vary depending on the heating system. For some systems, it's more efficient to maintain a steady temperature; for others, particularly in well-insulated homes, turning the heat off or down can be more energy-efficient.

Comfort:

Personal comfort is also a significant factor. Some people are comfortable with cooler temperatures at night, while others may not be.

In general, for energy savings, it's often recommended to lower the thermostat at night and when you're away from home, rather than turning the heating off completely. However, it's best to consider all the factors mentioned above and potentially seek advice from a heating specialist who can provide recommendations based on your specific situation.

Take Away from this: 

Use Programmable thermostats with optimized heating schedules to reduce energy consumption without sacrificing comfort, which eventually reduce energy bills and improve sustainability

Prompt 2: Can you please advice schedule and temperature setting for programmable thermostat?

Setting a schedule and temperature on a programmable thermostat can optimize your home's heating and cooling systems for comfort and energy efficiency. Here's a general guideline you can adapt based on your personal preferences and the specific needs of your home:

Winter Schedule:

Morning (Waking Up): Set the thermostat to warm up the house about 30 minutes before you wake up. If you get up at 7:00 AM, set the thermostat to start heating at 6:30 AM. A comfortable temperature is typically between 68°F to 70°F (20°C to 21°C).

Daytime (Leaving Home): If the house is empty during the day, set the thermostat to lower the temperature by about 7°F to 10°F from your comfort setting, around 30 minutes before you leave. For example, setting it to 58°F to 62°F (14°C to 16°C) can save energy.

Evening (Returning Home): Schedule the thermostat to return to a comfortable temperature about 30 minutes before you come home.

Night (Sleeping): Overnight, when you're asleep, lower the temperature again by 7°F to 10°F from your daytime setting, starting 30 minutes before your bedtime.

General Tips:

A common comfort temperature during active hours is between 68°F to 78°F (20°C to 26°C), depending on the season and personal preference.

For energy savings, aim for the lowest in winter that you find comfortable.

During the heating season, keep your house warmer when you're awake and at home, and turn down the heat when you're asleep or away.

Technology Considerations:

Many modern thermostats have "smart" features that can learn your schedule and adjust temperatures based on your habits and even local weather conditions.

Use mobile apps associated with smart thermostats to make adjustments on-the-go if your schedule changes.

Remember to adjust these settings to what feels best for you and others in your household, and take into account any health considerations or other factors that might require a specific temperature level. Always consult the thermostat's manual for specific programming instructions, as the interface and capabilities can vary widely between models.

Take Away from this: 

Configure the programmable Thermostat with 1. Comfort Temperature and 2. Away / Night Temperature and set the schedule to choose these temperature based on your schedule.

Conclusion

Chat GPT helped very precisely. I had the programmable thermostat in the house but I was not aware of these techniques, I was either continuously keeping it on or controlling it manually. Now, I have set the High Temperature as 20 C and Low Temperature as 15 C and scheduled the optimized temperature control settings based on waking up time and sleeping time with the consideration of going out of the house. Hope my energy bills will be optimized and also reduce CO2 emission contributing towards sustainability.

I had changed the settings in mid of December. I could see the difference, please find the November and December usage. I am further fine tuning to get the optimal levels.