Is your old boiler on the blink, and you have no hot water ? In simple terms the regulations state that. Have you had any of the following problems with your boiler? Step : pour / cup baking soda down the drain. Saturday hours by appointment! We can use the combined boiler or an accumulation tank with a copper flow heater to heat up hot service water (see the price list). We have been serving the city of chattanooga and the north georgia region for over years! Shows.