


BEROA BOILER
The HTW Beroa boiler achieves high levels of performance while achieving high savings in gas consumption, thanks to the condensing technology and its class A energy classification.
Beroa's most important priority is the safety of the user and the boiler itself. That is why it incorporates different protection systems to avoid or minimize possible damage as much as possible.
Main characteristics:
- Its low gas consumption derives in low emission levels, thus complying with the European ErP Regulation.
- Its condensing technology reduces the emission of polluting gases, making it sustainable and environmentally friendly.
- Its stainless steel heat exchanger prevents corrosion and extends the useful life of the boiler.
- It has a modulating DC fan that adapts to the user's demand, providing great energy savings.
- With Open-Therm Protocol: a modulating system that communicates the boiler with an Open-Therm thermostat and allows a progressive increase in temperature, avoiding temperature peaks and consumption, reducing electricity consumption and improving the feeling of comfort.
- Different protection systems: against pump and 3-way valve blockage, against freezing, 3-way safety valve and against gas evacuation problems.
- Energy classification A.
Available powers: 24 kW - 28 kW - 35 kW

Main Features
Technical information
MODEL | HTWCQ24BEROA-OPT | HTWCQ28BEROA-OPT | HTWCQ35BEROA-OPT |
---|---|---|---|
EAN CODE | 8435483848528 | 8435483848276 | 8435483848283 |
Power supply (V,F,Hz) | 220-240V (1 Phase~ 50Hz) | ||
Nominal input power (50/30ºC) (kW) | 22,8 | 26,1 | 32,4 |
Nominal output power (50/30ºC) (kW) | 24,6 | 28,2 | 35 |
Performance (50/30ºC) (%) | 105,48 | 102,7 | 103,84 |
Declared profile | XL | XL | XL |
Energy class | A | A | A |
Min. work pressure (bar) | 0,8 | 0,8 | 0,8 |
Max. work pressure (bar) | 2 | 2 | 2 |
Min. heating temperature (ºC) | 35 | 35 | 35 |
Max. heating temperature (ºC) | 80 | 82 | 85 |
Water flow (Δ T= 25 Cº) (L/min) | 11,4 | 13,3 | 17 |
Nominal gas consumption (m3/h) | 2,35 | 2,51 | 2,73 |
Gas type | Natural Gas G20 | Natural Gas G20 | Natural Gas G20 |
Min. gas pressure (mbar) | 14 | 14 | 14 |
Max. gas pressure (mbar) | 26 | 26 | 26 |
CO2 fumes extraction (%) | 9,09 | 8,87 | 9,23 |
O2 fumes extraction (%) | 4,97 | 5,28 | 4,74 |
CO fumes extraction (PPM) | 170 | 11 | 24 |
Main heat exchangers | Valmex | Valmex | Valmex |
Plate heat exchangers | Swep/Zilmet | Swep/Zilmet | Swep/Zilmet |
Protection level | IPX4D | IPX4D | IPX4D |
Electrical power input (W) | 140 | 140 | 140 |
Net Dimensions (W x H x D) (mm) | 400x717x330 | 400x717x390 | 400x717x390 |
Packaging dimensions (W x H x D) (mm) | 460x810x390 | 460x720x440 | 460x720x440 |
Net weight (Kg) | 29 | 32 | 34 |
Gross weight (Kg) | 30,33 | 34 | 36 |
Gas / Hot / Cold water connection (in.) | G3/4” | G3/4” | G3/4” |
Heating supply connection / Heating return (in.) | G1/2” | G1/2” | G1/2” |
Air inlet/outlet (mm) | Ø60 / Ø100 | Ø60/Ø100 | Ø60/Ø100 |
Maximum length of vertical coaxial flue outlet (m) | 10 | 10 | 10 |
Maximum length of horizontal coaxial flue outlet (m) | 8 | 8 | 8 |
Losses due to introduction of curve 90º/45º Ø60 / Ø100 (m) | 1 | 1 | 1 |