Wolf TGB-2-40 Condensing Gas Boiler Equipped for Natural Gas E/H

Gas condensing boiler for room air-dependent and room air-independent operation with natural gas E, LL and LPG.
Factory set for natural gas E.
For space heating and domestic hot water preparation with separate hot water cylinder, e.g. TS-160, TR-160 (for TGB-2-20/30).
Floor-standing unit, optimized for easy replacement of existing units with two flue gas connection options without requiring additional accessories.
Connection option at the top for wall mounting or at the back for using the existing flue gas connection. Patent pending.
All appliance connections optimized for the replacement of existing systems.
Continuously modulating heat output, e.g., from 2.9kW for TGB-2-20.
Low CO and NOx emissions.
Premix burner for natural gas and LPG, control with gas burner automatic, electronic ignition and ionization flame monitoring. Speed-controlled fan.
Extended condensing boiler utilization through spread control.
Seasonal space heating efficiency 94%.
High-quality heat exchanger made of robust aluminum-silicon alloy, long service life, low maintenance. Optimized heating water content 7.5l. Efficient and no minimum circulating water quantity required.
Heat-resistant combustion chamber cover with natural vermiculite insulation. Easy maintenance and cleaning of the heating water heat exchanger under system pressure without draining heating water.
Electronic pressure sensor.
Integrated flue gas backflow prevention for flue gas cascades, air/flue gas duct connection piece DN80/125 concentric with measuring ports.
Easy external flue gas measurement and control of the setting on the gas valve without opening the appliance.
Automatic air vent.
No mechanical switches in the heating water.
Casing white RAL 9016 powder-coated with design stripes.
Minimum noise level due to insulated casing.
Boiler fully assembled, pre-wired and clad, packed on a pallet, easy transport and easy installation.
Can be placed directly against the wall, thus requiring little space, installation possible without side clearances.
Easy operation and maintenance with convenient access to all components from the front and top at a comfortable height.
Flip&Clean device with convenient storage position and practical bayonet catches for easy maintenance.
Cascadable in three or five stages (TGB-2-20) and intelligently hybrid-capable with WOLF heat pumps.
Prepared for the installation of the LAN/WLAN module WOLF Link home for remote maintenance.
An operating module BM-2 or a display module AM integrated in the boiler is required for operation.

Technical data (Natural gas E):
EE Class: Space heating A
Seasonal space heating energy efficiency: 94 %
Nominal heat output at 80/60°C: 6.1 - 35.7 kW, at 50/30°C: 7.4 - 40.5 kW
Nominal load: 6.7 - 38.1 kW
Flue gas temperature (Qmax/Qmin) at 80/60°C: 72°C/59°C, at 50/30°C: 50°C/34°C
Max. flue gas mass flow: 15.9 g/s
Flue gas value group according to DVGW G 635: G42
Available differential pressure of the gas fan: 7 - 155 Pa
Condensate at 40/30C: 5.8 l/h
Factory setting flow temperature max.: 80°C
Total overpressure max.: 3 bar
Heating water heat exchanger content: 7.5l
Electrical power consumption: partial load / full load: 15/49 W
Standby: 3W
Sound power level indoors LWA: 42dB(A)
Protection class: IP20
Connections flow/return: G 1 ½