The factors above will help you decide which boiler is right for your requirements. Ivy farm, deanland road, golden cross, hailsham, east sussex bn27 3rp. Keep up the great work hiring and training professionals who embody the holt way! We will also highlight any potential problems which may cause your system to malfunction in the future. Alternatively you can call us on. The typical electric unit is wired to a 220-volt circuit to heat the water, the current passes through.