Selection Criteria Local Space Heaters
Methodology
Topten.eu presents the most energy-efficient local space heaters of Europe. Topten shows models which use wood pellets, logwood or both.
Note that wood boilers (solid fuel boilers for central heating) are not part of this list. You can find them here: Solid fuel boilers
Selection criteria
|
Pellet stoves
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Logwood stoves
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Energy label
|
A+
|
A+
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Dust [mg/m3]
|
20
|
40
|
CO nominal load [mg/m3]
|
300
|
1500
|
C org nominal load [mg/m3]
|
60
|
120
|
NOx [mg/m3]
|
200
|
200
|
Regulations
Energy Labelling Regulation EU 2015/1186
For local space heaters, energy labels are mandatory since January 1st, 2018, indicating the energy efficiency class on a scale from A++ (most efficient) to G (least efficient) . The label provides information such as the brand, the model, the energy efficiency class, the direct and - if applicable - the indirect heat output in kW, which measures the heat transferred to a liquid (for hot water or for a central heating system). The energy label is mandatory for appliances with rated output up to 50 kW.
Energy efficiency classes for local space heaters have the following thresholds:
Energy efficiency class
| Energy efficiency index (EEI)
|
A++
| EEI ≥ 130
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A+
| 107 ≤ EEI < 130
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A
| 88 ≤ EEI < 107
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B
| 82 ≤ EEI < 88
|
C
| 77 ≤ EEI < 82
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D
| 72 ≤ EEI < 77
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E
| 62 ≤ EEI < 72
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F
| 42 ≤ EEI < 62
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G
| EEI < 42
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Ecodesign requirements EU 2015/1185
The Ecodesign regulation is valid for appliances with a rated output up to 50 kW. The minimum requirements will become legally binding on January 1st, 2022. Minimum requirements are specified for the following criteria (cf. Table 4):
- energy efficiency (criteria is the seasonal space heating energy efficiency)
- emission of particulate matter
- organic gaseous compounds
- carbon monoxide
- nitrogen oxides
In addition, a product fiche with additional information will become mandatory on January 1st, 2022.
Requirements as specified in the Ecodesign 1185
| Pellet (closed)
| Logwood (closed)
| Logwood (open)
|
Efficiency at rated load (%)
| >79%
| >65%
| >30%
|
Dust [mg/m3]
| <20
| <40
| <50
|
CO nominal load [mg/m3]
| <300
| <1500
| <2000
|
C org nominal load [mg/m3]
| <60
| <120
| <120
|
NOx [mg/m3]
| <200
| <200
| <200
|
Glossary
- Brand: specifies the brand of the presented stove
- Model: specifies the name/number of the presented stove
- Similar models: specifies names/numbers of similar stoves (different colors, material, but essentially the same model)
- Energy Label: specifies the current European Energy label as specified in EN 2015/1186. The label ranges from A++ to G.
- Fuel type: Specifies the fuel that can be used in the stove. This can be either Pellet, Logwood or Pellet+Logwood.
- Heat distribution: Specifies the type of heat distribution this stove provides. The attribute values can be one or several of the following: None, ventilation, automatic storage mass, water pocket, central distribution system
- Weight (kg): Specifies the weight in kg. For example, 181.
- Height (cm): Specifies the height in cm. For example, 104.
- Width (cm): Specifies the width in cm. For example, 68.
- Depth (cm): Specifies the depth in cm. For example, 38.
- Max. heat output (kW): specifies the maximum heat output in kW.
- Connected load boiler [kW]: specifies the electricity load for which the boiler is connected. For example, 2.
- Energy Efficiency Index (%) : specifies the efficiency in % at the rated load, e.g. 107. The higher the EEI, the more efficient is the stove.
- Refuelling system: specifies how the stove is refuelled. The attribute value can be one or several of the following: Manual, Screw conveyer, Pneumatic conveyer.
- Auxiliary energy demand at nominal load (%): Specifies the additional energy demand in % for additional processes (such as refuelling, ventilation, controlling airflow, etc.).
- Dust nominal load [[mg/Nm3]: specifies the particulate matter in the exhaust air at nominal load of the stove.
- CO nominal load [mg/Nm3]: specifies Carbon monoxide in the exhaust air at nominal load of the stove.
- C org nominal load [mg/Nm3] : specifies the organic Carbon in the exhaust air at nominal load of the stove.
- NOx [mg/Nm3]: specifies Nitrogen dioxide in the exhaust air at nominal load of the stove.
Info Plus
Regulations
Other papers and presentations
Information for producers and retailers
Producers and retailers are kindly asked to contact info(at)topten.info to inform about more products which meet the Topten selection criteria.
09/2022 Gross, Bush