| One of the disadvantages of a storage tank | | | | safety in your household. It is also energy saving |
| water heating device is heat loss. When you store | | | | when you use a high-efficiency boiler especially |
| water in the tank, approximately 15% of water | | | | during months when the boiler does not need to |
| cools off, meanwhile, tank less water heaters can | | | | be operated frequently, like during summer. This is |
| be very costly in terms of installation. The water | | | | best used in places with warmer climates. |
| heater type that will eliminate these two | | | | In purchasing this indirect type of heating device, |
| disadvantages is the Indirect Water Heater. In a | | | | base it mainly on the Combination Appliance |
| more popular term, they are known as the | | | | Efficiency or C.A.E. because it measures the |
| Combination boiler or a Combi boiler. | | | | efficiency of a combined water and space heating |
| This is normally used as space heating device but | | | | system. The standard C.A.E. would be 0.85 but |
| it can be also be for water heating through a heat | | | | the higher the C.A.E. the better. If you are right |
| exchanger in a water tank. The boiler is the heat | | | | now in the process of getting just the regular |
| source; the indirect heat exchanger circulates the | | | | boiler, you may ask your contractor about |
| water inside the well-insulated water tank, unlike | | | | installing an indirect type of heater instead. This |
| tank less coil wherein water is heated directly | | | | may cost you around $600-$900 just to install |
| inside the boiler in a hot water heating system. | | | | but they are expected to last for up to 30 years. |
| Hence, this indirect process eliminates heat losses | | | | Unlike the traditional storage tank type which may |
| normally experienced with the traditional tank | | | | last for only up to 10 years. This indirect type of |
| type heaters. Because there is no separate | | | | heater is also highly popular in Europe. |
| burner for hot water, this also improves the | | | | |