How many kilowatts requires an electric boiler to have 2 safety relief valves (SRVs)?

The requirement for an electric boiler to have two safety relief valves (SRVs) is typically determined by the capacity of the boiler in kilowatts (kW). According to safety and regulatory standards, electric boilers with a capacity exceeding 1,000 kW are generally mandated to have multiple safety relief valves to ensure that pressure is adequately controlled and that safety protocols are maintained.

When considering the options provided, 1,100 kW aligns with the threshold that necessitates the installation of two safety relief valves. This capacity allows for proper safety measures to manage the increased pressure levels that come with higher operating outputs. An electric boiler with a capacity of 1,100 kW would thus be equipped with two SRVs to enhance its safety and reliability, ensuring compliance with industry standards.

Lower capacities such as 800 kW and 1,000 kW typically may only require a single SRV, while going up to 1200 kW reinforces the requirement for additional safety mechanisms due to the higher risk of pressure build-up. In this context, 1,100 kW is the most logical capacity that explicitly connects to the need for two safety relief valves.