The presented device is a modern model of the stove that meets the latest anti-smog regulations and EU recommendations regarding the efficiency of heating stoves. The 25 kW PellPal D boiler for wood combines functionality, simple operation and durable construction. It will be used in a household whose area does not exceed 250 m² - it is ideal for both space heating and domestic water heating. The burnt fuel is logs placed in a specially designed chamber, which ensures easy operation of the furnace, loading of the required fuel, as well as maintenance of the chamber and convection channels by the user.
During tests in accordance with the EN 303-5 standard regarding the emission of carbon monoxide, tar, dust and the level of required efficiency, the 25 kW PellPal D wood-fired boiler obtained the highest, 5th class. According to the result, the device is characterized by high efficiency, which reaches over 90%, energy class A+, as well as low emissivity of dust suspended in the air with a level lower than 20 mg/m3. In addition, the heating device meets the assumptions of the EcoDesign project, which relate to energy and emission properties for boilers operating in a central heating system.
According to individual user preferences, the 25 kW PellPal D boiler can operate in an open or closed system. If you choose the first option, you only need to use an open expansion vessel. On the other hand, for a closed system, it is necessary to select external equipment elements, which include a coil preventing overheating, an expansion vessel protecting against sudden pressure surges, a DBV 2 safety valve, and a SYR 5067 thermal protection valve. is to equip the boiler with a special accumulation tank. In the case of the 25 kW PellPal D boiler, an accumulation tank or a set of tanks with a minimum capacity of 1050 liters is required.
In accordance with the eco-design requirements (Commission Regulation (EU) 2015/1189), boilers with manual fuel charging should be operated with a water heat accumulator, an accumulation tank with a capacity depending on the heat output. The required capacity of the accumulation tank was determined in accordance with the requirements of the EN 303-5 standard and the Regulation of the EU Parliament 2015/1189. According to the above-mentioned requirements, the capacity of the accumulation tank cannot be lower than that indicated in the technical data of the PellPal D boiler.
We also encourage you to familiarize yourself with the detailed construction of the device below and to contact us.
Basic technical data of the PELLPAL D 25 kW boiler
rated thermal power: 25 kW
area of heated rooms: up to 250 m2
thermal efficiency: 90.3%
energy class: A+
working pressure: 2 bar
boiler water capacity: 87 liters
maximum operating temperature: 95 OC
chimney draft: 0.25 mbar
loading weight of fuel: 13 kg
length of logs (wood logs): 240 - 260 mm
diameter of logs (wood logs): FI 30 - 120 mm
boiler weight: 350 kg
accumulation tank capacity: 1050 liters
Construction of the PELLPAL D wood boiler with a power of 25 kW
The boiler body and outer jackets are made of certified boiler sheet P265GH with a thickness of 5 mm. Individual elements of the boiler are laser cut, which ensures maximum accuracy and 100% repeatability of individual elements that make up a given heating device.
The structure is based on an exchanger with horizontal convection channels located in the upper part of the furnace chamber. In the lower part of the boiler there is a furnace equipped with a cast iron grate consisting of cast iron beams arranged next to each other.
The boiler is equipped with tightly closed doors that enable boiler operation, fuel loading, cleaning of convection channels and combustion chamber. A flap has been designed in the lower door, the position of which is regulated by the Regulus air draft regulator. The chimney outlet (flue) is located at the back of the boiler. Connection pipes for connecting the boiler to the heating system are located on the top of the boiler and in its rear part. At the top of the boiler there are also stub pipes for mounting the draft regulator controlling the operation of the air inlet flap.
Installation diagram of the 25 kW PellPal D wood boiler in an open system
Description of the elements of the open circuit diagram
RB - safety pipe
RW - expansion pipe
RP- overflow pipe
RS - signal pipe
RO - vent pipe
PO - circulation pump
ZM - mixing valve
ZR - differential valve
MC - thrust regulator
Installation diagram of the 25 kW PellPal D wood boiler in a closed system with a DBV 2 valve
Description of the elements of the closed system diagram with the DBV 2 valve
ZS - cooling valve
ZR - reducing valve
MC - thrust regulator
ZB - safety valve
ZZ - non-return valve
IG - heating installation
NP - expansion vessel
PO - circulation pump
Installation diagram of the 25 kW PellPal D wood boiler in a closed system with the SYR 5067 valve
Description of the elements of the closed system diagram with the SYR 5067 valve
ZS - cooling valve
ZR - reducing valve
ZN - filling valve
ZU - discharge valve
ZO – cut-off valve
MC - thrust regulator
ZB - safety valve
IG - heating installation
NP - expansion vessel
PO - circulation pump
CT - temperature sensor
The warranty for the boiler is 24 months and counts from the date of its issue, i.e. the purchase of the boiler. Warranty for
the boiler is granted provided that all the requirements specified in the instruction manual are met (see attachments).
Attention! Failure to read and comply with the requirements specified in the operating manual by the user, attempt to repair it on their own, interfere with the construction of the boiler and accessories, and for other reasons not attributable to the manufacturer, results in the loss of the warranty.
The warranty also covers the accessories mounted to the boiler (fan, controller - if any), but for the period and under the conditions specified in the warranty card of the manufacturer of these accessories.
The warranty does not cover:
mechanical damage caused during transport, assembly and operation of the boiler
consumable parts during boiler operation (sealing cord, seals, turbulators, hinges, screws, nuts, handles and catches, ceramic elements, paint coatings). The warranty also does not cover the act of replacing them
events described in "Causes of disturbances and malfunctions in boiler operation"
no confirmation of the boiler installation and protection according to PN-91/B-02413 or PN-EN 12828:2003
the actions to be performed by the user specified in the user manual
corrosion, pitting and loss of boiler material caused by improper operation of the boiler (maintaining the minimum return temperature in the boiler - temperature protection)
damages and their effects caused by the failure to use flues that are inconsistent with the requirements taking into account the likelihood of flue gas condensation and resistant to harmful chemical compounds, including acids.
damage as a result of exceeding the maximum values of temperature and pressure in the boiler
TEMPORARILY NO
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