Compare prices and quality of electric boilers. Ridgid rodders are designed specifically for larger diameter drain lines. Spend up to about €6,000 per bill. Strysen heating are turning 40 this year! we’d like to thank all of our customers and staff over the years for their continued support. Hydrochloric acid + bleach → water + table salt + chlorine gas. A boiler is essentially a furnace, burning fuel to create warmth, and a combi boiler works on quite a simple.