1. Introduction
Thank you for choosing the Prity S3W17 Multi-fuel Stove. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your new stove. Please read these instructions carefully before using the appliance and keep them for future reference.
The Prity S3W17 is a freestanding multi-fuel stove designed for heating residential premises using solid fuel, wood briquettes, or dry wood. It features a water jacket for central heating integration and a direct room heating output.
2. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
2.1 General Safety Guidelines
- Always ensure adequate ventilation in the room where the stove is installed.
- Never use flammable liquids to start or rekindle a fire.
- Keep children and pets away from the hot surfaces of the stove.
- Regularly inspect the flue pipe and chimney for blockages or damage.
- Only use recommended fuels. Burning unsuitable materials can damage the stove and create hazardous emissions.
- Ensure smoke detectors and carbon monoxide detectors are installed and functioning correctly in your home.
2.2 Minimum Clearances to Combustible Materials
To prevent fire hazards, maintain the following minimum distances from combustible materials:
- Rear: 400 mm
- Sides (Left and Right): 400 mm
- Ceiling: 600 mm
- Front: 800 mm (safety information)
These clearances are critical for safe operation. Consult a qualified installer for specific requirements in your region.
2.3 Approved Fuels
This stove is designed for burning solid fuel, wood briquettes, or dry wood. Do not burn treated wood, household waste, plastics, or any other unapproved materials.
3. Product Overview
The Prity S3W17 is a robust multi-fuel stove constructed from cast iron and alloy steel, finished with a durable paint or powder coating. It features a large firebox, a glass door for flame viewing, and an ash pan for easy cleaning. The integrated water jacket allows for connection to a central heating system.

Figure 1: Front view of the Prity S3W17 Multi-fuel Stove.
3.1 Key Features
- Multi-fuel capability (wood, wood briquettes, solid fuel)
- Integrated water jacket for central heating (17 kW output)
- Direct room heating (5 kW output)
- Flame effect viewing window
- Adjustable air controls
- Ash pan for convenient ash removal
4. Setup and Installation
Installation of the Prity S3W17 stove must be carried out by a qualified professional in accordance with all local and national building codes and regulations.
4.1 Unpacking and Placement
- Carefully unpack the stove, removing all packaging materials. Inspect for any damage incurred during transit.
- Position the stove on a non-combustible hearth or floor protector, ensuring it meets the minimum clearance requirements to combustible materials as outlined in Section 2.2.
4.2 Flue Connection
The stove requires a 130 mm diameter flue pipe connection. Ensure the flue system is correctly sized, installed, and sealed to prevent smoke leakage and ensure proper draft.

Figure 2: Rear view showing flue and water jacket connections.
4.3 Water Jacket Connection (for Central Heating)
If utilizing the water jacket for central heating, connect it to your heating system according to plumbing regulations. The water jacket has a volume of 23 liters and a maximum working pressure of 1.25 bar. Ensure all connections are watertight and the system is properly bled of air.
5. Operating Instructions
5.1 First Fire
Before the first use, ensure the stove and flue system are correctly installed. The first few fires should be small to allow the paint to cure. During this process, some odor and smoke may be emitted, so ensure good ventilation.
5.2 Loading Fuel
- Open the firebox door slowly to prevent smoke spillage.
- Place approved fuel (e.g., dry wood logs up to 42 cm in length) into the firebox. Do not overfill.
- Close the firebox door securely.
5.3 Ignition
- Open the primary air control (usually located on the ash pan drawer) fully.
- Place kindling and a firelighter on top of the fuel.
- Ignite the firelighter.
- Once the fire is established, gradually close the primary air control to achieve the desired burn rate.
5.4 Air Control
The stove features adjustable air controls to regulate the combustion rate and heat output:
- Primary Air: Controls the air entering the bottom of the firebox, primarily for starting fires and burning solid fuels.
- Secondary Air: Controls air entering above the fuel, aiding in cleaner combustion and flame effect.
Experiment with the air controls to find the optimal settings for your fuel and desired heat output.
5.5 Timer Function
The stove includes a timer feature. Refer to the specific timer controls on your appliance for programming instructions. This allows for scheduled operation, enhancing convenience.
6. Maintenance
Regular maintenance is crucial for the safe and efficient operation of your Prity S3W17 stove.
6.1 Ash Removal
Empty the ash pan regularly, ideally when the stove is cold. Do not allow ash to build up and touch the bottom of the grate, as this can restrict airflow and damage the grate.
6.2 Cleaning the Glass
Clean the glass viewing window when the stove is cold using a damp cloth and a non-abrasive stove glass cleaner. Avoid cleaning hot glass, as it may crack.
6.3 Chimney and Flue Sweeping
The chimney and flue pipe should be swept at least once a year, or more frequently if burning resinous wood, by a qualified chimney sweep. This prevents creosote buildup, which can lead to chimney fires.
6.4 General Inspection
Periodically inspect the stove for any signs of wear or damage, including seals, hinges, and air controls. Replace any worn parts promptly.
7. Troubleshooting
This section addresses common issues you might encounter with your stove.
| Problem | Possible Cause | Solution |
|---|---|---|
| Smoke coming into the room | Blocked chimney/flue, poor draft, door opened too quickly, downdraft. | Check for blockages, ensure adequate air supply, open door slowly, consult a chimney sweep. |
| Fire not burning well/low heat output | Wet fuel, insufficient air supply, chimney blockage, stove too small for room. | Use dry fuel, open air controls, check chimney, ensure stove is appropriately sized. |
| Excessive burning/over-firing | Too much air, too much fuel, faulty door/glass seals. | Reduce air supply, use less fuel, check and replace seals if necessary. |
| Glass blackens quickly | Wet fuel, insufficient secondary air, low burning temperature. | Use dry fuel, adjust secondary air, ensure hotter burn. |
If you cannot resolve an issue, contact a qualified technician or your supplier.
8. Specifications
| Feature | Specification |
|---|---|
| Model | S3W17 |
| Brand | Prity |
| Total Thermal Power | 22 kW |
| Water Jacket Output | 17 kW (Nominal: 13.1 kW) |
| Room Heating Output | 5 kW (Nominal: 4.7 kW) |
| Efficiency | 75.5% |
| Approximate Heating Area | 125 m² |
| Dimensions (W x D x H) | 570 mm x 530 mm x 930 mm (57 cm x 53 cm x 93 cm) |
| Firebox Dimensions (W x D x H) | 430 mm x 450 mm x 550 mm |
| Max Log Length | 42 cm (450 mm chamber depth) |
| Weight | 118 kg |
| Flue Diameter | 130 mm |
| Water Jacket Volume | 23 Liters |
| Max Water Working Pressure | 1.25 bar |
| Material | Cast Iron, Alloy Steel |
| Standard | CE EN 13240:2001/A2:2004/AC:2007 |
| Flue Gas Temperature | 190°C |
| Dust Content in Flue Gas | 0.0309 g/m³ |
| CO in Flue Gas | 1.27% (0.1017%) |

Figure 3: Prity S3W17 Stove Dimensions.

Figure 4: EU Energy Label for Prity S3W17.

Figure 5: Declaration of Performance for Prity S3W17.
9. Warranty and Support
The Prity S3W17 stove comes with a limited warranty. Please refer to your purchase documentation for specific terms and conditions of the warranty. For technical support, spare parts, or warranty claims, please contact your retailer or the manufacturer, Prity.
Manufacturer: Prity 95 Ltd.
Address: 30, M. Raikovitch str., 5140 Lyaskovets, Bulgaria
Unique Product Identification Code: FIREPLACE PRITY S3W17
ASIN: B07X3KKKTH
UPC/EAN: 3800215093692


