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Ekogroszek/wood pellets or gas for heating in Poland? [9]
"Ekogroszek" (it must have an English name, I don't believe it's so Poland-specific) is cheapest but annoying and dirty. Every few days you have to fill the tank with coal. Using your hands and a bucket or a spade. Which produces a lot of dirt and dust. If you decide for this type of heating, choose a boiler with a more advanced control unit unless you want to spend hours in your boiler room adjusting all the settings once the outside temperatures or quality of the coal changes.
Two advantages of "ekogroszek" coal heating is that it's the cheapest system (only the traditional heating systems based on a coal boiler are cheaper) and probably the most popular one in Poland, so it's easy to get help.
Wood pellets are the least popular option from all of them, and it's something between "ekogroszek" coal and gas. It's still a solid fuel, so it needs some manual work to use it, but it's much "cleaner" than coal. And, if I am not mistaken, the burning process can be controlled much better. Might be an interesting option, but it might be not so easy to get support when you have some problems, because it's just not that popular.
Gas may be a really good option if your house has (or can have) a connection to the gas network. It's clean, you don't have to do any work with it (no coal tank to refill - just take care about regular check-ups made by a specialist), you don't need a separate room for a coal storage, and the boiler room is clean, so you can use it also for other purposes. I would say it may cost 1,5 of that what "ekogroszek" heating costs. But everything depends on the current coal and gas prices, so it's difficult to compare it.
Check also other options, such as:
- trying to use your current old-fashioned boiler in a more efficient way (there are actually two possible ways of burning in such a boiler) - it's described here in Polish:
czysteogrzewanie.pl/jak-palic-w-piecu/jak-palic-czysto-weglem/
maybe you will find some English materials about that as well, the thing is to fill the boiler with coal first and then to light it up at the top instead of lighting it up at the bottom and then covering it with coal; it turns out to be much more efficient (you cannot refill the stove, but once you light it up, a full load of coal should be enough for a day, and you light it up again on the next day), however, it has some nuances that have to be taken into account
- solar heating system
- heat pump
For the two last ones you can get some funding from the state.
By the way, it seems that those "ekogroszek" boilers are called stokers in English, or, at least, in the USA:
city-data.com/forum/house/489442-heating-coal-me-beginners-guide.html