Viessmann Vitodens 100-W Heat Only B1GA 25 kW - 7959997
VITODENS 100-W HEAT ONLY
A compact and efficient heat-only gas boiler
A heat-only, wall-mounted gas-fired condensing boiler which is compact enough to fit in a standard kitchen cupboard. Also suitable for use in other applications with limited space available.
- Rated outputs: 11 kW, 16 kW, 19 kW, 25 kW and 32 kW
- Compact dimensions to fit in standard kitchen cupboards
- ERP efficiency 93% (Class A)
- Weather compensation option large user display
- 5-year comprehensive warranty as standard
- Viessmann Trained Installers can now offer their customers an extended warranty option up to 12 years
Key Benefits
Efficient, durable, quiet
The corrosion-resistant stainless steel Inox-Radial heat exchanger with unrivalled wall thickness is extremely durable and achieves efficiency levels of up to 93%.
The boiler's special design ensures a very low operating noise of 39 dB(A) maximum (26 kW), which is perfectly acceptable even in the kitchen.
Inox radial burner
Weather compensation
Intelligent weather compensation
The Vitodens 100-W Open vent can even operate in weather compensated mode without incurring a costly heating system modification, all that is needed is a simple upgrade.
Weather compensation acts like an auto-pilot as it detects outside temperature changes and automatically adjusts the flow temperature of the boiler, achieving gas savings of up to 12% in the process.
Compact dimensions
With a depth of only 285 mm (340 mm on the 32 kW model) the compact Vitodens 100-W Open vent boiler is perfectly suited for integration into standard kitchen cupboards.
It can also be used in a vast number of other applications where there is only limited space available.
Versatile system solutions
Whilst being specifically designed for open vent heating systems, the Vitodens 100-W heat only is suitable for sealed systems using an additional expansion vessel safety valve.
Product details
- Output in kW - 11 to 32 kW
- Standard seasonal efficiency [to DIN] - 98 % (Hs) [gross cv]
- Energy efficiency class - A
- Fuel - Natural gas, LPG, 20 % hydrogen mixture
- Application area - Detached/terraced houses, apartments, for new build and modernisation projects
- Additional features - MatriX-Plus burner with Lambda Pro combustion controller for permanently high efficiency and clean combustion. Certified for 20 % hydrogen content in natural gas.
Compatible Installation Accessories
Note:- Search Product Accessories code in Store Search bar.
BOILER CONTROLS
| Product Code | Description | |
| 7141709 | Vitotrol 100 room thermostat hard wired | |
| 7170149 | Vitotrol 100 UTA analogue programmable room thermostat 24h hard wired | |
| Z007691 | Vitotrol 100 UTDB digital programmable room thermostat - 7 day, single channel hard wired | |
| Z007933 | Weather compensation outdoor sensor (incl DHW demand box) |
| Product Code | Description | |
| ZK04647 | Contact thermostat for underfloor heating with connection cable (1.5 m long) | |
| ZK06130 | WiFi Modem including cable |