The E-Tec NX 33 also has an efficiency rating of 94% and ErP A-rating for heat, which could potentially help you to lower your carbon footprint and your energy bills, depending on your current boilers efficiency rating.
Combi boilers are often the more preferred choice of boiler in UK households, as they remove the need for any additional tanks or cylinders that you would need with a system or regular gas boiler. This is because combi boilers are designed to have a water heater and central heating combined in the same unit. This is ideal for those who need hot water instantly.
The Alpha E-Tec NX 33kW is the most powerful combi boiler of its range, with an output rating of 30.4kW for central heating and an output of 32kW for hot water, perfect for homes with up to 20 radiators and 1-2 bathrooms.
With these output levels, this combi boiler is powerful enough to heat medium-sized homes with a high demand for heating and hot water. On the other hand, if you have a smaller sized home that does not have such a high demand for heating and hot water, the Alpha E-Tec 28kW is also available.
