Usually, articles about any hardware write about its merits. But in this article focuses on the shortcomings of condensing boilers
It should be noted that the boiler capacity is 25 kW providing up to 3,5 l / h of condensate. A whole year of about 7,000 liters.
The resulting condensate to the pH when connecting the main gas is 4-6, that is, the condensate is an acid (nitric and sulfuric acids).
In connection with this circumstance condensate can not drain near the house, a creek, on the ground or into the gutter.
Can not be taken to a biological treatment plant, because it may kill bacteria colonies provide wastewater treatment.
It is possible to use the converter: the pH of deoxidized condensate should systematically monitor (at least 1 time per month). You can use an indicative strip from the supplied converter or a pH-meter. Have to constantly pour converter or completely change the filling once or twice a year.
The cost of converter box is about 9,000 rubles a boiler capacity of 25 kW. Additional package of 2.6 kg worth 2,000 rubles.
In the chimney of the neutralizer is also continuing condensation, so it must be impermeable and resistant to acids. Brick Channel also will not work - acid will destroy it in a few months of operation.
Pay special attention to this and do not try to drain the condensate to the ground!
Estimated cost of domestic wall condensing boiler can be determined by multiplying the value of its rated capacity of 3 thousand rubles. That is 24 kW condensing boiler will cost 72,000 rubles. In this case you can not buy condensing boiler for 32 000 rubles.
Andrew phoned several Moscow companies - suppliers of condensing boilers, but they are almost all they could say nothing about the condensate neutralizer.
As a result, we can conclude that no one cares to the ecology of our land. It remains only to realize how harmful to the land and bio-sanitation "neutralize" the condensate of up to 7 tons per year, for in it there are other harmful substances!
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