Combi boilers: is a combi boiler the right boiler for you? Boilers designated for heating with wood in combination elfo have the "l" suffix in their name (e.g dc spl). Currently four of the big energy suppliers offer grants for new boilers and fitting, though you may face extra costs such as for additional radiators however, you should be told about these beforehand. For help with remodeling or new construction, contact pdq today! It is yeah this is something, drain cleaner.