Log – Froling Biomass Boilers

range of log boilers

Froling log gasification boilers boast superior practical use, sturdiness and safety, resulting from decades of experience.

Available in 15 kW to 60 kW output sizes

S1 Turbo / S1 Turbo F

15kW to 20kW

Froling's NEW Log boiler (15 - 20 kW) combines all the features of a state-of-the-art biomass combustion system.

The speed-regulated induced draught fan ensures constant high quality combustion and the carbonisation gas extraction system prevents flue gas from escaping, even when topping up.

The new S1 Turbo stands out for its high efficiency and long refilling intervals, combined with low emissions and low energy consumption.

The new air duct concept in Froling's S1 Turbo firewood boiler automatically regulates the heating air, primary air and secondary air with a single actuator. Thanks to the special air ducts for heating up, the fuel loading chamber door can be closed very soon afer lighting.

Heating with logs is convenient.

Download S1 Turbo brochure

S3 Turbo

20kW to 45kW

The S3 Turbo offers top quality boiler technology for a mid-range price. It concentrates on the most important points and includes a lot of features, which are otherwise only found in top of the range log boilers.

The S3 Turbo can be easily front loaded with half-metre logs. Often the boiler only needs to be filled once for the entire day. Strong steel plates protect the loading chamber and keep it clean.

With its patented, cylindrical high temperature swirl combustion chamber, the S3 Turbo delivers excellent combustion values. The generous dimensions of the combustion zone guarantee low emissions. The efficiency optimisation system (WOS) makes it easy to clean the heating surfaces from outside using a lever mechanism. The carbonisation gas extraction system also prevents any gas escaping when topping up.

The primary and secondary air settings are adjusted by the technician during commissioning. The function-monitored induced draught fan enables the system to adjust to different operating statuses. This means the system has excellent output adjustment with full operating safety. The speed-regulated induced draught fan ensures constant high quality combustion, the carbonisation gas extraction system prevents any smoke from escaping even while topping up.

The S-Tronic controller in the boiler controls the induced draught fan and offers the option of connecting a storage tank loading pump and a heating pump. Flue gas and boiler temperature monitoring ensures efficient combustion. Any regional regulations requiring the use of weather-activated controls should be observed.

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Download S3 Turbo brochure

S4 Turbo / s4 turbo f

22kw to 60kw

The S4 Turbo allows you to burn half-metre logs even from an output of 15 kW. Fröling has developed the tested cylindrical combustion chamber shape further and sets new standards. The robust construction and the use of silicon carbide as a material for the high temperature combustion chamber enable a longer service life.

Load the boiler, light the fuel, close the door and that's it. Heating with the new S4 Turbo from Froling is that easy. If you would like to make it even easier to operate, there is the optional automatic ignition device.

The speed-regulated induced draught fan ensures constant high quality combustion, the special carbonisation gas extraction system prevents any smoke from escaping even when topping up. WOS as standard! You can have a lever on the left or the right for easy cleaning of the heating surfaces from outside, while keeping efficiency at maximum levels.

Froling is pointing the way ahead with the newly developed S 3200 control system. The control unit is optimised to fit requirements, and along with an individually adjustable viewing angle, it ensures that all operating statuses are clearly shown.

The clearly-structured menu makes the system easy to operate. It is simple to select the important heating and hot water functions using the function keys. The Froling bus system makes it possible to install expansion modules in any location, and electrical wiring is kept to a minimum.

The RBG 3200 room console gives you a full overview from your living room. It is extremely easy to read off all the important values and status messages and you can change settings at the push of a button.

Download S4 Turbo brochure

SP DUAL

15kW to 40kW

TWO SYSTEMS PERFECTLY COMBINED - The NEW SP Dual firewood and pellet boiler combines two well designed systems. It fulfills all the requirements for firewood and pellet fuels in two separate combustion chambers. Highly efficient and convenient, the SP Dual guarantees low wmissions an energy costs.

PELLET UNIT CAN BE ADDED ANYTIME. The S4 Furbo F with pellet flange is the ideal solution for people who are currently only burning LOGS. It can easily be Converted to a dual fuel boiler by ADDING the pellet unit at any time

Download SP DUAL brochure

SP DUAL COMPACT

15kw to 20kw

In addition, the SP Dual compact has just one heat exchanger, a return temperature control, a controller and a flue gas pipe, which can be used for both operating modes.

PELLET UNIT CAN BE ADDED ANYTIME. The S1 Turbo F with pellet flange is the ideal solution for people who are currently only burning LOGS. With the S1 Turbo F with pellet flange, the pellet unit can be retrofitted later at any time. The SP Dual compact has important advantages even before it is put into the boiler room. It is so compact that installing it is SIMPLE even in confined boiler rooms. The pellet burner of the SP Dual compact is supplied completely insulated and wired so all you need to do is plug it in. Thanks to its design with just a single exhaust pipe, it is particularly easy to retrofit a pellet unit at any time.

Download SP DUAL COMPACT brochure