Lekto WoodfuelsNight Briquettes - 20kg (20 Briquettes), Up to 8 Hour Slow Burn | Ideal for Wood Stoves, Log Burners, Sheltered Fire Pits & Chiminea | Compressed Wood Fire Bricks | Long Burning Logs

I followed the instructions and put the briquette on hot coals and gave it air to burn with flames and then once it had caught I closed down the air vents and the flames go out and it burns for 8 hours with the heat tapering off from about 6 hours. I have a garden office and struggled to keep an even temp. Using logs it would only be the correct temp for a little while and I would have to add logs and then it got too hot. This is the perfect solution. I use two logs to get the room warm and then the briquette to keep the temp even. It is smoky when you first put the briquette on but once it catches it settles. The photo is of the briquette just catching light after I put it on the hot coals from two logs.

These bricks do slow burn but only for 2 or 3 hours and in my experience you need at least two at a time. Quite good but a pungent odour from them when stored by the fire and quite a lot of ash.

Not the best, only achieved around 2 hours ofp burn time and not the advertised 8. Will stick to logs as this is not cost effective!

We have been looking for something like this for our wood burner for a longtime and this is spot on. Our wood burner soon heats our room to levels that are more than required so we end up letting it burn out when we would really like the fire to continue burning in the background.These do exactly that. When our room is up to temperature and we want to keep it running we put one or two of these on. They do exactly as described if you follow the instructions, which looking at some reviews, clearly some people do not!They will burn for about an hour with a flame (see my first picture) and then they evolve into what I would describe as a giant ember (see my second picture which was taken after 4 hours)I have started my fire back up, again by following the instructions, after 8 hours without any issues, and I reckon the briquettes would have burned for at least another 2 hours. They do not give out much heat (again as the makers have stated) which is ideal for what we need them for but they do take the chill off the room when left in over night or when you go out shopping.I fully recommend these but don’t whinge if they don’t give out much heat, that’s the whole point of them! Delivery was a lot quicker than the estimated date and came via DPD. A new box has already been ordered!

So we thought we would give these a try for overnight to keep the warmth being generated as opposed to coal. Well despite our best efforts we could not make them last more than 3hours, but more importantly the stove cooled down significantly on the thermometer we have for the fans, (which have made a big difference) to the point that the fans slowed down. They take a good flame to get them going, the resin comes off on your hands when handling them, and fthe ash generated is double what we normally see, so in our opinion and experience a complete waste of £32 !!

These may work in a home situation, but I can share that in an external setting i.e. tent stove camping they unfortunately do not, despite trying different techniques they are not effective, the most I got from them was about 90 mins before completely dying. They are too heavy to lug to camp if they are non-effective, I'm just going to use them as normal fuel now, its a shame as I really wanted them to work

Was a bit sceptical when I saw these but they do work. Keep room warmer overnight. Makes lighting fire following morning easier as the Stove is already warm and you will still have some glowing embers from the night before.

Last all night keeps house warm .Dislike very dusty