All boilers will come with information about their energy efficiency a higher rating means that your carbon footprint will be smaller, which is considered better for the environment but there are cost saving benefits too. Dangerous products are putting millions of people at risk sign our petition to demand action now. Hello richard! sorry we didn’t see this comment in our blog folder until now did john come by and help you already? if not, please feel free to call (403) 338-1172 and we’ll.