Top 10 solid fuel boilers

When choosing a solid fuel boiler, it is reasonable to look first at the most “omnivorous” models, and in this regard, the U (Universal) line from Stropuva looks attractive: the manufacturer claims that there will be enough coal loading for up to 130 hours, briquettes for up to 72 hours, firewood - up to 31 hours. And originally Lithuanian boilers are now manufactured for our market in St. Petersburg, although this mainly affects only the price - the quality is generally comparable, the difference is that the assemblers now prefer not “Shvyturys”, but “Baltika”. And the fact that the Lithuanian site will be more honorable than the Russian: the Lithuanians in the list of characteristics directly write that the burning duration is indicated for the minimum load, and the figures for the maximum are given. And here it becomes immediately clear that coal is not as convenient for actual operation as you might think from the "advertising" numbers - they say, poured a bag and do not fit for several days. “At the limit,” coal loading is burned out in 27 hours (a good difference?), But briquettes “work” in the same way for 72 hours. Now it’s clear why owners complain in forums that coal is being consumed much faster than advertising promises.

The efficiency of the boiler is stated at 85%, which is quite good. Moreover, the power of 40 kilowatts will allow you to be sure that it will not be cold in winter. But the developers should blame the barrel shape - if coal doesn’t hinder the fall of coal, then try to put firewood here normally (which the central air supply pipe and the distributor also interfere with). It is immediately clear that universality here with certain restrictions - even though the boiler “eats” and that’s it, he does not like everything equally. Yes, and clean it, too, do not say that it is convenient. In general, something interesting is conceived ... but the implementation is some kind of "sprats".

The German company hardly needs notions: it has been producing heating boilers since the end of the 19th century. Well, specifically, this 50-kilowatt boiler, capable of “eating” wood up to 58 cm long, will be an excellent, albeit not cheap, solution for heating due to efficiency reaching 90% and reliability (but bear in mind that the heat exchanger is still steel! ). In addition, the electronics of the boiler allows you to control an external boiler - you get a sort of modular "double-circuit".

The duration of burning of dry wood at full load is up to three hours. The ability to control via GSM and even integration into the “smart home” system via Ethernet is available (optional modules are needed). Loading and cleaning are conveniently organized, which is logical - whatever one may say, they ask for a lot of money.

But immediately get ready to work thoroughly on hardening the floor - the boiler weighs all 466 kg!

Here, both versatility and “lazy dream” to you: this boiler with an efficiency of 82% works on any fuel, and it is also equipped with an automatic feed bunker - they promise more than a week of work on one backfill! Naturally, such a trick will not give up with firewood (just don’t remember the anecdote about the juicer and birch sap), so that if you take the boiler with the bunker, the firewood will be more likely a backup power option.

In general, Krasnoyarsk residents clearly decided to play out “for everything” - here you will have both automatic feeding, and the possibility of installing heating elements, and even optional control via GSM. To control the boiler, a digital remote control is used, located, we note, very inconvenient - at the very top of the boiler, and its height - meter sixty. It personally will not hurt the author, but not all the same by two meters in height - someone will need a stool to adjust. And there is something to adjust: the temperature, and the air supply by the fan, and the speed of the screw, in total more than 10 parameters. In short, “at random” is better not to climb.

The abundance of mechanics, of course, reduces reliability, especially the teeth of the rotary retort drive suffer, which is not surprising - the gears in the “hot” place have a hard time. Well and, obviously, the boiler is volatile. So we can’t give him the maximum score: although the idea is interesting, not everyone will like such a boiler.

This boiler from South Korea is as versatile as possible and certainly will not leave your home without heating and hot water: it is able to use not only briquettes, wood or coal as fuel, but also diesel. On the heating circuit is given 35 kilowatts of power, for hot water - 19.8 kW. When heated to forty degrees drinking water flow - up to 6.5 liters per minute.Given the good power reserve, the heating circuit is an excellent option for a private house, where the water supply is already provided by the pump station or well pump with external automation. The diesel fuel, of course, “eats” it is decent - up to 2 liters per hour, so it’s worth leaving it as a backup option: if you forget to add coal to the furnace in time, the boiler will automatically switch to the supply of liquid fuel.

The combustion chambers for each fuel are separate, that is, during long-term operation on coal, one should not fear clogging of the nozzle for diesel fuel. However, it is worth considering that with its weight of 170 kg you should not even dream of cast-iron heat exchangers - only steel, alas. Of course, their quality is good, but you should not go overboard with pressure.

The 20-kilowatt boiler “out of the box” is designed to work only with coal or firewood, but it also allows modernization — for example, you can install a brand set of heating elements with a capacity of 3 to 15 kW and transfer it to gas, diesel, pellets.

An interesting design of the boiler: in order to eliminate the risk of warping, a water shirt was introduced into it, reaching as far as the ash pan. Of course, this complication increases the risk of leakage of welding, but the quality of the boilers of this model can be called decent. But we will still cut the rating - “out of the box” is an ordinary solid fuel, it will turn into a combined one only with a surcharge.