Requirements for Boiler Installation
Before deciding to purchase our product, please study this manual carefully. Review your own situation and determine whether you meet the installation requirements.
Later in exploitation, any departures from the requirements may cause:
- High costs of emergency servicing
- Significantly shorter service life of the boiler
- Poor pellet combustion
- Increased pellet consumption
In case you have any further questions or you need small corrections in the dimensions of the boiler room, ventilation or flue gas exhaustion, please contact a Kepo technician or our customer service: + 381 31 783 927.
If you meet the requirements, you provide yourself with an economical, safe, and long-term use of our product.
1. Minimum clearance of the boiler sides from walls
- Left side: 65cm
- Right side: 50cm
- Back: 40 cm
- Front: 100cm
- Room height: 60cm clearance from the top of the boiler
This implies that the minimum room size is 1.5m x 2m, with a height of 2m.
This enables our technician to perform annual service or fix possible boiler malfunctions quickly. It also enables you to maintain the boiler and flue pipes smoothly.
If the minimum clearance is not provided, we will not be able to conduct any operations.
2. For proper operation, the boiler must be installed in a ventilated room
A fresh air vent must be made in the lower part of the room, 30cm above the floor, near the boiler, with a minimum size of 100cm².
A vent for dirty air (pellet and ash dust) must be made in the upper part of the room, 20-30cm below the ceiling, with a minimum size of 150cm².
Due to possible boiler congestion caused by irregular boiler and chimney maintenance, a certain amount of smoke may penetrate the room. This makes the vent for dirty air indispensable.
Kepo produces ø120mm pipes with decorative collars and meshed endings that can be installed as the air vent.
These vents have to be made properly in order to prevent any possible blockages.
3. To exhaust flue gasses, use only ø80, ø100 or ø120 flue pipes with silicone rubber bands
The maximum amount of flue pipes to connect the boiler to the chimney is as follows:
- Tee – 1 piece
- 1000mm or 500mm straight pipes – 3m maximum
- Elbow 90° – 1 piece
In case two 90° elbows are used, the maximum straight flue pipe length is 2m.
Horizontally mounted flue pipes must not exceed 1m, with a mandatory 3-5% drop at the boiler.
At the end of flue pipes installation, there must be an insulated chimney.
The minimum chimney diameter is ø130.
4. Insulated chimney connected to the boiler must be cleaned prior to commissioning
The manufacturer is not liable for any malfunctions caused by the lack of chimney maintenance.
The minimum frequency for cleaning the chimney is once a year. With larger diameter chimneys, the frequency is extended accordingly.
Small-sized, square-shaped chimneys interfere with regular boiler operation. A chimney connected to the boiler cannot be connected to any other device (e.g. another boiler, a furnace, a heater or other heating devices).
The minimum height of the external insulated chimney is 3m from the connection point of the flue pipes.
5. Supply voltage must be stable at 230V ± 5% max
In case this requirement is not met and if there is a periodic voltage drop or jump, the manufacturer is not liable for any boiler malfunctions.
6. Proper boiler positioning
Once the boiler is installed, the leveling feet must be adjusted.
The minimum clearance of the boiler to non-combustible and poorly
combustible materials must be 50cm, whereas its minimum clearance to combustibles must be 100cm!
In case the flue pipes must pass through combustibles, such as wooden walls,they must be properly insulated.
If the boiler is installed on a combustible floor, it is vital to make a
non-flammable hearth pad with dimensions larger than those of the boiler
(at least 20cm longer than the back and sides and at least 40cm longer than
the front of the boiler).
In case any of these conditions is not met, the boiler cannot be commissioned!
Download the PDF document Requirements for Boiler Installation (108kb).