What Is The Best Temperature To Set Your Heating Oil Boiler At?

image of a residential boiler room

It can be a challenge to find out the best boiler temperature that will work best for your central heating oil boiler. Exterior temperatures fluctuate all the time, and everyone has varying hot water needs. Therefore, your boiler settings may significantly differ from the next person. It helps determine the best temperature for your hot water cylinder or boiler when you know what type of central heating boiler you have. Read more to learn the recommendations for efficient home heating.

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Common Types of Central Heating Boilers

mittens on radiator depicting boiler temperature settings

It can be useful information when you know what type of central heating oil boiler you own and how it operates before making temperature adjustments.

Combi Boilers

Formally called combination boilers, combi boilers have become a popular central heating option because a single unit provides both hot water and heating. Your home’s main water supply provides cold water into the boiler. Fuel combustion follows to generate heat. The boiler’s heat exchanger then transfers the heat to the water from the combustion chamber. Combi boilers can heat the water rapidly as it utilizes heating oil or gas.

Combi boilers have a more condensed design than others as they don’t need a separate water tank, making them the ideal choice if you have a small property. However, it cannot simultaneously direct hot water to the central heating and tap, despite having one unit for hot water and heating. For example, the central heating is on, and someone turns on the shower. The boiler will temporarily redirect the hot water to the tap in use instead.

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Regular Boilers

Regular boilers are also called conventional or heat-only boilers. It is made of three parts: the boiler, a separate cold water tank, and a separate hot water cylinder. The tank to store cold water is usually installed in the attic or a loft space because it utilizes gravity to fill the boiler. The boiler heats the water and directs it into the central heating system’s radiators, filling the hot water cylinder. As a result, you get hot water when you need it.

A conventional boiler is your best bet if you have a larger home. This boiler type is also ideal for houses with several bathrooms or a low-pressure main water supply. Regular boilers take up more space in your home. However, its separate water tanks let you enjoy heating and hot water simultaneously.

System Boilers

System boilers work like regular boilers in that they supply heating water to radiators and hot water on demand to the hot water cylinder. These boilers only have two components: the boiler and hot water cylinder. The main water supply in your house directs water into the boiler, so there is no need for a separate cold water tank.

It is also the recommended boiler for large homes that require a lot of hot water. System boilers use less space. Many of its components are also internal, so you have more flexible installation alternatives than regular boilers. Moreover, you still need to put aside some space for a hot water cylinder with a system boiler. The flow rate around your house will also be affected if the main supply has low water pressure.


Central Heating Boiler Temperature Settings

There is no single temperature that the central heating boiler needs to be set at. The boiler temperature for your home is different depending on a few factors, like the weather and personal preference. However, you still need to keep any boiler temperature adjustments within a certain range, so the boiler doesn’t overheat.

Recommended Boiler Temperature Settings

Control panel of central oil heating system

There will be different temperature settings for your central heating water and hot water cylinder. It is recommended that you adjust your boiler’s low/high-temperature settings depending on whether the weather gets colder or warmer. Low boiler temperatures are ideal for summer, while high boiler temperatures are more comfortable in the winter. Low-temperature settings should be within 120 to 160 degrees Fahrenheit while within the range of 180 to 200 degrees Fahrenheit if in high-temperature settings.

Try to remain at about 200 degrees at the highest when you need warm temperatures. The boiler will begin to overheat when the temperature rises above 212 degrees. This can cause the boiler to leak or burst.

The hot water cylinder’s temperature setting typically stays in the same range throughout the year. The hot water cylinder temperature should be between 140 to 150 degrees Fahrenheit. Ensure that the temperature of the boiler water doesn’t get too low for health and safety reasons.

Legionella is a bacteria that can grow in freshwater with 77 to 112 degrees Fahrenheit temperature. This bacteria can lead to contracting a kind of pneumonia known as Legionnaires’ disease. According to the CDC, the temperature of your heating cylinder water should be at least over 124 degrees.

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Tips for Boiler Energy Efficiency

image of efficiency rating and home heating boilers

Use your home’s temperature controls for efficient home heating and maximum energy efficiency. You can also enjoy more precise temperature control in each room when you install programmable thermostats and thermostats for individual rooms. For instance, you can set the bedroom temperature lower than other rooms so that you can sleep comfortably.

You can also utilize smart temperature controls. This will automatically adjust the temperatures for you, and you can even control the temperature using your smartphone or tablet. This way, you can reduce heat usage from virtually anywhere. To efficiently heat your home, you should set the boiler temperature to fluctuate from four to five degrees at varying times. Keeping your home cooler when you are away from home also helps with your heating costs.


Call R.F. Ohl for Your Home Heating Needs

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When you need high-quality, affordable heating oil delivery services throughout northeastern Pennsylvania, make sure to call R.F. Ohl. All of our discount oil deliveries are fast and reliable while keeping your safety in mind. We also offer HVAC services, including maintenance, installations, repairs, and replacements. Each of our friendly techs is equipped with experience and knowledge to work on your HVAC system correctly. Book your next oil delivery or service appointment by calling R.F. Ohl today. We offer free, in-home estimates.

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