How to choose a boiler for pellets: Full guide for efficient heating in 2026

Did you know that a boiler can spend more time in a boiler house than with loved ones in a warm living room? Most owners agree that heating should be invisible, but in reality many face constant ash cleaning and fuel concerns, which in 2026 range in between 350 and 400 euros per tonne. The question of how to choose a boiler has now become critical, especially in view of the new restrictions in Riga on gas heating and the expected changes in the state aid programmes.

We promise that this guide will help you find the most suitable solution to get full comfort and lower operating costs in the long term. Our goal is to provide clear and understandable advice based on real experience rather than complex terms. In the article we will explore everything from accurate power calculations to the advantages of automation of RTB Phoenix systems. Learn how to ensure reliable heating and use state co-financing up to 85%, making your house energy efficient and peace of mind guaranteed.

Why is a pellet boiler a smart choice in Latvian climate?

The decision of Riga Municipality to prevent the installation of new gas boilers from 1 January onwards is a clear signal in most cases; time to switch to renewable resources. Granula is our local resource, and Latvia produces almost ten times more pellets than we consume in the internal market. It gives a feeling of security even at price fluctuations, which in July 2026 reached 350 to 395 euros per tonne. how to choose a pellet boiler, it is important to understand that this choice is a long-term investment in your home energy independent and ecology.

This year, state aid has become even more accessible and targeted. The amendments planned in the EQF programme in the third quarter of 2026 provide for an increase of aid intensity for "Family of the good" to up to 85% of the eligible costs compared to the previous 70%. This means that high efficiency equipment becomes an economically viable solution for almost every household wishing to replace old wood boilers or inefficient systems.

Modern RTboiler (5616) They are fully automated and manageable from the smartphone, providing even heat without permanent human presence. The following BAT conclusions apply to the combustion of the fuel and/or gas oil from the combustion of the fuel and/or gas. based on accurate combustion control and lambda probe use, we see a efficiency ratio of over 90%. It is critical to receive Altum or EQF funding, where high energy efficiency indicators are mandatory.

Myths and Truths About Pellet Heating

Many hosts still fear that the boiler will have to be cleaned every day. It is the past. Modern systems with automatic heat exchange cleaning and ash compaction mechanisms require user intervention only once a month or even less. Another important nuance is the temperature of the flue gas; if it is low, it shows excellent efficiency, because the heat remains in your house, not to purge into the chimney. how to choose a pellet boiler, pay attention to these parameters of automation as they will define your daily comfort for the next 15 years.

Main technical parameters: How to calculate the required capacity?

When it's time to make a practical decision, how to choose a pellet boilerThe first and most common mistake is the desire to buy a machine with a large spare capacity. We often hear customers say: "I'll take more power for security." In reality, it's the straightest way to spending. Too powerful a boiler will work inefficiently for your house, it will often close in and out, by not fully burning fuel and increasing the consumption of pellets. The standard calculation is simple; an average insulated house needs 1 kW of power for every 10 m2. If your housing area is 150 m2, 16 kW of boiler will be in time.

The choice of granules is logical because: Latvian biomass potential is one of the highest in Europe. Because forests cover more than half of the country's territory, wood biomass is and will be a stable resource. To use this resource wisely, look for a facility with a efficiency of over 93%. This means that almost all energy is turned into heat in your radiators or warm floors, rather than sinking into a chimney. If you want to see how such efficiency looks like in life, look at our proposed energy RTboiler (5616) models developed directly for maximum energy returns.

Steel vs. cast iron heat exchangers

The steel is a much more responsive material; it heats faster and better transmits heat than cast iron. In addition, the steel surface is smooth. The cast iron is porous by its nature, meaning that the ash and soot gets into it much closer. It makes it harder to clean and reduces the efficiency of the equipment over time. A smooth steel heat exchanger combined with an automatic cleaning system ensures that the boiler will work smoothly for years.

Why choose a specialised solution?

Many manufacturers offer wood boilers that simply incorporate a pellet burner. This is not the same as a "real" pellet boiler. In a specialized plant, the flue-gas route is much longer and more complex, allowing heat to come into contact with the heat exchanger longer. In the wood boiler, the smoke goes through too quickly. As a result, a specialized pellet boiler will consume 20 to 30% less fuel than a custom fire boiler. how to choose a pellet boiler, this nuance will be crucial for your monthly bills.

Automation and smart functions: 2026 standards

In 2026 the heating system is no longer just an iron box in the basement; it is a smart device that works for you. how to choose a pellet boilerThe automatic cleaning of the burner and heat exchanger allows you to forget about the ash blade for weeks because the system itself cares about its cleanliness. Meanwhile, the Lambda probe or oxygen sensor continuously analyzes the flue gas, optimising the combustion process so that each pellet is used to the last drop of energy, regardless of fuel quality.

This technological development is closely related to Latvia's sustainability objectives. National Energy and Climate Plan notes that it is precisely the efficiency of the building sector that is crucial to achieving the overall climate objectives. Modern vacuum feed systems provide even greater freedom in planning; you can place the pellet bunker even in the next room or behind the wall, keeping the boiler house perfectly clean and aesthetically. how to choose a pellet boiler, which forms part of a modern lifestyle.

RTB Phoenix: Next generation heating management

RTB Phoenix pellet boilers stand out for ensuring full process control from anywhere in the world through the app. You can not only change the temperature, but also see detailed diagnostics and pellet residues in the bunker while at work or on a trip. Especially valuable is the ability to modulate the equipment. This means that the boiler can operate with minimal power without losing efficiency, which is essential in spring and autumn seasons when full power is not needed. If you want to enjoy this smart comfort in your home, look at our RTboiler (5616) models.

Maintenance and Service

Professional maintenance is mandatory, however automated the system is, once a year. It is important not only for the manufacturer's warranty to keep, but also for the calmest mind that everything will work smoothly on the coldest winter night. During prevention, the engineer checks the performance of sensors and makes the necessary improvements to your settings. Our Kommodus service team is available throughout Latvia, providing fast and qualified assistance in any situation. We believe that a reliable partnership with the customer starts immediately after installation of the equipment, taking care of your peace of mind in the long term.

From project to heat: Why entrust the installation to professionals?

Understand how to choose a pellet boilerEven the most advanced equipment will not be able to achieve the promised efficiency if the installation process makes mistakes in the flue drift or in the creation of ventilation. Professional design is the airbag that prevents your investment from literally excavating into the chimney. Our team is making sure that the boiler is perfectly integrated with the warm floors and boilers, creating a unified and smart home ecosystem, where each element works in a coordinated way.

In 2026 we increasingly offer our customers hybrid solutions. The boiler perfectly fits with solar panels that provide hot water during summer months, allowing the heating system to relax completely. This combination provides maximum energy-independence and allows even more long-term reduction of total costs. how to choose a pellet boiler, it is worth providing for the possibility of such a system extension in time, so that no expensive conversion works are carried out later.

Synergies between systems in the dwelling

A modern and energy efficient house recovery system While the boiler provides stable heat, the recuperator takes care of fresh air without losing room temperature. We also recommend that the project envisage a place where air-water heat pump could be installed in the future. It can serve as a reserve source or work in parallel, giving even more flexibility in changing weather conditions in Latvia.

Why choose Commodus?

We are not just equipment vendors; we are engineering solutions partners with more than 15 years of experience. Our masters have installed thousands of equipment in Latvia, and for each project we can access individually, regardless of the building area. We believe that trust is formed through clear communication and quality work, so we provide full service from first consultation to regular maintenance. If you are ready to move to a new level of comfort, See our RTB pellet boiler offer here and let us take care of the warmth of your home.

Warmth and peace of mind in your home already this season

The right choice of heating system is a decision that will affect your daily comfort for the next 15 years. We have seen that modern heating no longer requires a permanent presence in the boiler house. Thanks to the smart automation of RTB Phoenix, you get a system that takes care of efficiency and cleanliness while you enjoy time with your family. Remember that precise calculation of power and specialized equipment is the key to low costs, especially at a time when energy efficiency requirements and fuel prices are becoming increasingly important.

Known how to choose a pellet boilerHowever, the theory is only the beginning. In order for the system to work smoothly, professional assembly and service are necessary, which our team provides throughout Latvia. With more than 15 years of engineering experience, we will help you to find the best solution that will serve long and reliable.

Do not decide alone; trust experts who care about the comfort and peace of mind of your home in the long term. Get free consultation and power calculation for your home Today. We are ready to become your safe partner on the road to a warm, ecological and smart home.

Frequently Asked Questions about Pellet Heating

How much pellets consume in a medium-sized house in one season?

The average heat-insulated 150 square meters house in one heating season in Latvia consumes approximately 3.5 to 5 tons of pellets. The exact amount depends directly on the heat resistance of the building, the quality of the windows and the efficiency of the boiler you choose. High-class equipment helps to reduce this amount by ensuring fuller combustion of fuel and minimal heat losses through the flue, which is essential at current prices.

Can a pellet boiler be installed by itself or should a certified master be required?

Although technical assembly can be done by itself, we strongly recommend attracting a certified specialist. It is critical not only for your safety, but also for maintaining the manufacturer's warranty. The professional will know all the technical details, how to choose a pellet boiler and set it correctly to avoid the pit-to-pipe or automatic malfunctions that may subsequently cause expensive and unexpected damage.

What is the difference between cheap and premium quality granules in the boiler operation?

Premium quality pellets (ENplus A1) contain minimal ash and have higher calorific value. Using cheaper, unknown fuel, boiler burner and heat exchangers, often clustered slags are formed. They make the equipment work with a greater load and require much more frequent cleaning. In the long term, good pellets protect the boiler's mechanisms and ensure stable operation without unexpected stops on colder winter nights.

Can the pellet boiler heat hot water in the summer months?

Yes, the pellet boiler can provide hot water all year round, but in summer it is not the most economically efficient solution. In such cases, the boiler must only be switched on for a short time to heat the boiler, which increases fuel consumption and mechanical wear. A smarter alternative is the combination of boiler with electric heating heating elements or solar collectors connecting, which allows the heating system to fully relax during the summer season.

What are the requirements for the room where the pellet boiler will be installed?

The boiler house must be fireproof, with good supply ventilation and sufficient space for fuel storage. It is important to ensure free access to the installation and to empty the ash tank. how to choose a pellet boiler, note that modern vacuum feed systems allow even the bunker to be placed in the next room. This gives greater freedom in the planning of the room and helps keep the boiler house perfectly clean.