If you or someone you know is deserving of this discount, just let us know and we will be happy to consider it! Plumbing has been in our family for generations. With no hot water cylinders or tanks in the loft, a combii boiler gives you instant hot water on demand they are a highly efficient all in one solution to meet your heating and hot water needs. We're proud to do the right thing and participate in a wide range of community organizations and events. Boiler on the blink? think help-link!.