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Verified by manufacturer 2 days ago
Q51SR
Wall-mounted stainless steel gas-fired condensing boiler with low NOx emissions and high efficiency for domestic and light commercial use.
Suitable for large domestic and light commercial properties with high hot water demand.
The ATAG QR Series System is a wall-mounted, stainless steel, fully modulating, low NOx, gas-fired condensing boiler. It features a downward firing pre-mix burner with precise gas to air mixing, resulting in extremely low environmental impact and NOx emissions. The boiler is designed for high efficiency and low carbon output, with a stainless steel heat exchanger made of multi-pipes with generous wall thickness for strength and durability.
Features and benefits:
Color | White |
Material | Stainless steel |
Shape | Rectangle |
Length | 385 mm |
Width | 660 mm |
Height | 680 mm |
Warranty description | Five year |
Uniclass | |
CAWS | T90/312 Boilers, gas-fired condensing |
SKU Code | Q51SR, Q60SR |
Classification data | |
Standards | |
Boilers with heat input not exceeding 70 kW | Heat-only boiler to EN 15502-1 and EN 15502-2-1. |
Output | 45.0 kW (80/60℃); 49.6 kW (50/30℃). |
Energy efficiency rating | Class A. |
Seasonal efficiency (gross calorific value: minimum) | 93%. |
NOx emissions (maximum) | 23.52 mg/kWh. |
Mounting | Wall-mounted. |
Operating pressure | 1–2.5 bar. |
Operating temperature | 50°C flow, 30°C return. 80°C flow, 60°C return. |
Heat exchanger | Stainless steel. |
Fuel | Natural gas. LPG. |
Electrical supply type | Single-phase. |
Material | Stainless steel |
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