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This document is a user manual for the La Nordica-Extraflame pellet stoves, specifically the "Comfort Idro" and "Duchessa Idro" models. It provides comprehensive instructions and warnings for the installation, use, and maintenance of these appliances.
The stoves are designed to burn wood pellets, an ecological fuel made from compressed wood shavings without glues. The manufacturer recommends using 6mm diameter pellets that comply with Ö-Norm M 7135, DIN plus 51731, and UNI CEN/TS 14961 standards. Proper pellet storage in a dry place is crucial for problem-free combustion.
These are pellet-fueled heat generators designed to produce thermal energy through combustion. They are "closed hearth appliances," meaning the opening is only for loading fuel during use. The "Idro" designation indicates that these models are designed to integrate with a hydraulic system, providing heat to water for central heating or domestic hot water. They feature both forced draught (air circulation by an electric fan) and natural draught (chimney effect) for smoke evacuation. The appliances are equipped with various safety devices to ensure safe operation.
The stoves are designed for ease of use with a control board for managing functions like current day and time adjustment, ignition, pump functioning, and switch-off. An optional remote control is available for convenience. For temperature regulation, an additional room thermostat can be installed.
Pellet feeding can be done in a few ways. The standard method involves switching off the stove and extracting the flue for each pellet feed. However, optional kits are available for more convenient feeding. The "Lateral Pellet Feeding Support Optional Kit" allows for extraction of the insert or, more comfortably, using a lateral chute if an opening is made in the appliance's covering. The "Front Pellet Feeding Optional Kit" enables front loading of pellets without extracting the flue or switching off the stove. This involves removing the front upper frame, pulling out an internal drawer, and pushing pellets into the flue tank using a scraper. During normal operation, the front pellet loading drawer must remain completely closed to prevent product overheating.
The stoves are designed to function in various climatic conditions, including critical ones. However, in particularly adverse conditions (strong wind, freezing), safety systems may intervene and switch off the stove.
Regular maintenance is essential for the correct and safe functioning of the stove. The manual emphasizes that the stove must be serviced at least once a year by the technical after-sales service.
Key maintenance tasks include:
The manual also highlights the importance of checking for obstructions before switching the appliance on after a prolonged standstill period. For cleaning majolica surfaces, a soft, dry cloth is recommended; detergents or liquids could penetrate crackles and highlight them.
The stoves are equipped with numerous safety devices:
For closed vessel systems, additional safety devices are mandated by UNI 10412-2 (2006) standard, including a safety valve, pump control thermostat, acoustic alarm activation thermostat, temperature and pressure indicators, automatic circuit breaker switches, a circulation system, and an expansion system. The Comfort Idro model does not include an expansion vessel or pump as standard. The Duchessa Idro model includes a 6-liter expansion vessel, but its capacity may not be sufficient for larger water volumes.
General| Efficiency | 90.5% |
|---|---|
| Fuel | Wood Pellets |
| Flue Outlet | 80 mm |
| Operating Pressure | 1.5 bar |
| Maximum Operating Pressure | 3 bar |
| Type | Pellet Stove |
| Heating Area | 200 m² |
| Water Capacity | 22 L |
| Color | Bordeaux |
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