Heat Logs

Our heat logs are a great alternative to firewood logs and used alone or in combination with traditional firewood logs can provide excellent burning results and a potential cost saving. Heat logs are made from 100% compressed sawdust, a by-product of sawmills, making it highly sustainable. This is then formed using extreme pressure or extreme heat & pressure to produce an exceptionally dry and dense, bio-fuel briquette. There are no bonding agents used to hold heat logs together, just the natural lignin polymers in the wood.Our heat logs are a great alternative to firewood logs and used alone or in combination with traditional firewood logs can provide excellent burning results and a potential cost saving. Heat logs are made from 100% compressed sawdust, a by-product of sawmills, making it highly sustainable. This is then formed using extreme pressure or extreme heat & pressure to produce an exceptionally dry and dense, bio-fuel briquette. There are no bonding agents used to hold heat logs together, just the natural lignin polymers in the wood.

Buying Options

BRUF Birch Heat Logs - 10Kg Pack - 12 pieces

RUF Birch Heat Logs - 10Kg Pack - 12 pieces

Price: £5.35

Wood type: 100% Birch Sawdust

Moisture Content: < 5.6%

Ash Content: <1.5%

Calorific Value: 4180 Kcal/kg

A brick type heat log produced from pure birch sawdust using extremely high pressure alone to give a very clean, neat looking product. Burns for a very long time turning into a large glowing ember that should produce a high heat output for up to 2 hours, making it ideal for long burn sessions to keep the heat in. Very slight expansion on burning but not significant enough to concern open fire users.

Pini Kay Oak Heat Logs - 10Kg pack - 12 pieces

Pini Kay Oak Heat Logs - 10Kg pack - 12 pieces

Price: £5.35

Wood type: 100% Oak Sawdust

Moisture Content: < 5.0%

Ash Content: < 0.6%

Calorific Value: 5161 Kcal/kg

Manufactured from pure oak sawdust under extreme heat and pressure. This produces an extremely dense and very dry product that produces a good flame and high heat output with almost no expansion. Burn times are not quite as high as for the RUF log but if you want to retain a good looking flame, this may be the heat log for you. This product also has a very low ash content so produces less ash waste in your ash pan.

Prices inclusive of VAT at 5% (Fuel Tax Rates) for domestic fuel.

Heat logs provide a very clean and compact, high calorific output fuel source. The moisture content of our heat logs is extremely low, typically below 6%. Even the best quality kiln dried firewood logs have a moisture content of 10-15%. The manufacturing process applies the same high pressure to each briquette ensuring that a consistent high density is achieved with each heat log. Essentially, with a heat log having a lower moisture content, you are getting more wood material (the fuel) per kilogram and therefore more fuel for your money, and compressed into a smaller volume.

We currently stock 2 different types of high quality heat log, both using slightly different manufacturing processes and producing slightly different burning characteristics. Both types display no or minimal expansion on burning unlike some lower quality heat log products on the market. Expansion can reduce burn time, heat output and cause potential safety problems, especially for open fire users.

It’s worth remembering that with heat logs, the wood type does not necessarily make a huge difference to performance, unlike with traditional firewood logs. For example, the main difference between birch and oak with traditional firewood logs is the density of the native wood. When using these woods to manufacture heat logs, the wood material is in sawdust form and is subject to the same high pressure, therefore removing the density variable.

Each of these products work well when used alone but better results can be achieved trying different combinations, either with both types of heat logs, or mixed with traditional firewood. As with all solid fuel advice, it’s a case of experimenting and finding out what works best in your appliance. Remember that a good looking flame doesn’t always necessarily lead to the highest heat output, good red hot embers can produce the best heat but may not always offer the nice visual appeal of a dancing flame.

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