Heating boilers
Buderus Condensing Boiler
BUDERUS · GB 022
Description
Buderus GB022 gas condensing boiler, 24 kW, flue evacuation kit included
The Logamax Plus GB022 wall-mounted gas condensing boiler adapts perfectly to your heating and domestic hot water needs. It is exceptionally robust, reliably ensuring constant comfort.
Its compact dimensions allow for simple and flexible installation, making it ready for use in very short time. It is equipped with an advanced LCD display for easy and quick control.
The Logamax Plus GB022 boiler is highly adaptable. With a high modulation ratio of 1:5, it efficiently adjusts to domestic hot water demands while remaining very energy-efficient.
The unit is characterised by a high output for domestic hot water preparation of up to 25 kW. As a result, a sufficient amount of hot water is always available. Additionally, the boiler operates extremely quietly, meaning you can shower at any time of day or night without disturbing anyone.
With a compact, modern, yet robust design, the Logamax Plus GB022 boiler integrates perfectly into any living space, providing elegance to the area in which it is installed. The hydraulic connections beneath the unit are not visible from the front and, with a depth of only 300 mm and a height of 710 mm, it can be perfectly fitted into the smallest of rooms, such as a hallway.
Integration into an existing heating system is possible thanks to its modular design and the use of proven control technology.
Installation and maintenance operations can be carried out easily due to the compact design. The boiler weighs less than 36 kg and allows frontal access to the internal components. This saves time and reduces maintenance costs.
GB022 advantages:
Increased efficiency thanks to a high modulation ratio of 1:5
High output in DHW (domestic hot water) preparation mode
Compact design
Simple installation
Versatile installation options thanks to horizontal hydraulic connection capability
Compatible with innovative systems via the EMS interface
Elegant and functional design with an advanced LCD display
Delivery set includes:
Logamax Plus GB022-24 K H boiler (7736901496)
Horizontal flue gas evacuation kit, L = 1000 mm (7738112495)
Technical data
ParameterValueMax. nominal heat output (Pmax) 40/30 °C25.2 kWMax. nominal heat output (Pmax) 50/30 °C25.2 kWMax. nominal heat output (Pmax) 80/60 °C24.0 kWMax. nominal heat input (Qmax)24.5 kWMin. nominal heat output (Pmin) 40/30 °C5.3 kWMin. nominal heat output (Pmin) 50/30 °C5.3 kWMin. nominal heat output (Pmin) 80/60 °C4.8 kWMin. nominal heat input (Qmin)4.9 kWMax. nominal heat output for hot water (PnW)25.0 kWMax. nominal heat input for hot water (QnW)25.5 kWEfficiency at max. output, heating curve 40/30 °C103%Efficiency at max. output, heating curve 50/30 °C102%Efficiency at max. output, heating curve 80/60 °C98%Efficiency at min. output, heating curve 36/30 °C109.5%Efficiency at min. output, heating curve 40/30 °C108%Efficiency at min. output, heating curve 50/30 °C108%Efficiency at min. output, heating curve 80/60 °C97.5%Standard efficiency rating, heating curve 75/60 °C105%Standard efficiency at 30% load, heating curve 40/30 °C108.5%Gas connection valuesNatural gas H (Hi(15 °C) = 9.5 kWh/m³)2.62 m³/hPropane (Hi = 12.9 kWh/kg)1.89 kg/hButane (Hi = 12.7 kWh/kg)2.24 kg/hPermitted gas connection pressureNatural gas H17 – 25 mbarLPG (liquefied gases)25 – 35 mbarExpansion vesselPre-pressurization0.75 barNominal volume of expansion vessel (EN 13831)6 litresHot waterMax. hot water quantity (with flow limiter)10 L/minWater temperature35 – 60 °CMax. cold water inlet temperature60 °CMax. permitted water pressure10 barMin. flow pressure0.3 barSpecific flow rate per EN 13203-1 (ΔT = 30 K)12.2 L/minValues for flue cross-section calculation (EN 13384)Mass flow of flue gases at max./min. nominal heat output11.31 / 2.40 g/sFlue gas temperature 80/60 °C at max./min. nominal heat output70 / 58 °CFlue gas temperature 40/30 °C at max./min. nominal heat output50 / 35 °CResidual discharge pressure125 PaCO₂ at max. nominal heat output9.6%CO₂ at min. nominal heat output8.6%NOx class6CondensateMax. condensate quantity (TR = 30 °C)1.7 L/hpH valueapprox. 4.8Losses with burner off at ΔT = 30 K0.36%Authorisation dataEquipment categoryII2 H 3 B/PInstallation typeB23, B23P, B33, C13(x), C33(x), C43(x), C53(x), C63(x), C83(x), C93(x)GeneralElectrical voltageAC 230 VFrequency50 HzMax. power consumption (heating mode)90 WEMC limit classBSound pressure level45 dB(A)Protection ratingIP X4DMax. flow temperature82 °CMax. permissible working pressure (PMS) – heating3 barPermitted ambient temperature0 – 50 °CHot water quantity7 litresMass (without packaging)35 kgDimensions (W × H × D)400 × 710 × 300 mm
