Thermo Condens® WTC-GW / WTC-GB 45–150 wall-mounted and floor-standing gas condensing boilers for residential complexes and commercial buildings, cascade up to 800 kW
Country: Germany · Model: WTC-GW / WTC-GB 45–150
Wall-mounted WTC-GW and floor-standing WTC-GB are compact gas condensing boilers from 45 to 150 kW with an output range from 6.9 to 146.0 kW. A cascade of eight wall-mounted boilers gives up to 800 kW, with modulation up to 1:8. Intended for buildings of roughly 500 m² and more, such as residential complexes, offices and commercial sites.
- Wall-mounted models (GW)
- 45-B 6.9–45.2; 60-B 6.9–60.1; 80-A 13.4–77.0; 100-A 13.4–94.0 kW
- Floor-standing models (GB)
- 45-B, 60-B, 80-A, 100-A, 120-B 19.4–115.2, 150-B 19.4–146.0 kW
- Cascade
- up to 8 wall-mounted boilers, up to 800 kW
- Fuel
- natural gas E/H, LL; liquefied gas P (depending on model); up to 20 % hydrogen admixture
Technical specifications
| Wall-mounted models (GW) | 45-B 6.9–45.2; 60-B 6.9–60.1; 80-A 13.4–77.0; 100-A 13.4–94.0 kW |
|---|---|
| Floor-standing models (GB) | 45-B, 60-B, 80-A, 100-A, 120-B 19.4–115.2, 150-B 19.4–146.0 kW |
| Cascade | up to 8 wall-mounted boilers, up to 800 kW |
| Fuel | natural gas E/H, LL; liquefied gas P (depending on model); up to 20 % hydrogen admixture |
| Efficiency | η100 98.1–99.6 %; η30 108.4–109.9 % (Hi); class A |
| Modulation | up to 1:8 |
| Combustion control | SCOT, self-calibration to gas quality |
| Weight | GW 77–95 kg (95 kg for 100 kW); GB 113–169 kg |
| GW dimensions | 640 × 500–600 × 792 mm |
| Connectivity | LAN, WEM portal |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The wall-mounted WTC-GW come in models 45-B (6.9–45.2 kW), 60-B (6.9–60.1 kW), 80-A (13.4–77.0 kW) and 100-A (13.4–94.0 kW). The floor-standing WTC-GB 45-B, 60-B, 80-A and 100-A have the same ranges, while 120-B gives 19.4–115.2 kW and 150-B 19.4–146.0 kW. The efficiency is 98.1–99.6 % at rated load and 108.4–109.9 % at partial load (η30), based on the lower heating value. Wall-mounted boilers weigh 77–95 kg and floor-standing ones 113–169 kg, so with a load-bearing wall the boiler is hung, and otherwise a floor-standing one is taken. The heat exchanger is cast from Al/Si silumin, and the water flow is divided into parallel channels, so the hydraulic resistance is low. The SCOT system self-calibrates to the gas quality and allows up to 20 % hydrogen. Control is via a LAN interface and the WEM portal.
How to choose
First a choice is made between wall-mounted and floor-standing versions. Wall-mounted GW go up to 94.0 kW and weigh 77–95 kg, while floor-standing GB reach 146.0 kW and weigh 113–169 kg. For higher output the boilers are combined in a cascade of up to 800 kW. If even more heat is needed, look at WTC-GB 210–300 up to 276 kW or WTC-GB 470 / 620.
Request a price and lead time
Thermo Condens® WTC-GW / WTC-GB 45–150 wall-mounted and floor-standing gas condensing boilers for residential complexes and commercial buildings, cascade up to 800 kW. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What outputs do WTC-GW and WTC-GB 45–150 boilers have?
From 6.9–45.2 kW for model 45-B to 19.4–146.0 kW for WTC-GB 150-B. The wall-mounted 100-A gives 13.4–94.0 kW.
How many boilers are combined in a cascade?
Up to eight wall-mounted boilers, with a total output of up to 800 kW.
What is the efficiency of the boilers?
98.1–99.6 % at rated load and 108.4–109.9 % at partial load (η30), based on the lower heating value, class A.
Is hydrogen admixture to the gas permitted?
Yes, SCOT combustion control self-calibrates to the gas quality and allows up to 20 % hydrogen.
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.


