Biomass Thermal Energy Recovery System


  • Off-grid electricity generation
  • Patented temperature protection system
  • Contains no moving parts
  • Noiseless
  • Avoid electric supply connection inconvenients
  • Make any biomass heating system fully renewable.
  • Long life cycle
  • Instantly know the thermal power generation of the stove

OVOO launch

News from nablatherm! Excited to announce the launch of our new product #OVOO. Cooking, warming up & illuminating in a single device. Pre-orders available from next July through #Kickstarter .

Discover our renewed website!

Nabla team is excited to announce the launch of our updated website The new site has a fresh new look and was designed with your needs in mind.

Going Off the Grid – Making Your Home Self-Sufficient

A Zero Energy Home (ZEH) – an energy self sufficient home – is an idea whose time has come! Generating some of your own electricity is a great way to reduce your reliance on power supplied [...]

bioThERS can also be seen as a heat flux meter for stoves!

  bioThERS produce a voltage with temperature.  This generated voltage is a function of heat flux that flows through the thermoelectric generator, which can be calibrated with the heat produced by the fire. [...]

Models & Features
LIGHTING. In rural zones where electricity is not avialable, bioThERS can supply energy to power ambient lighting for various rooms or decorative lighting to be used inside the heating system. Nominal values of lighting power: BT-01 5W, BT-02 10W, BT-04 20W and BT-06 30W.
ILUMINACIÓN. En zonas rurales o aisladas dónde no hay disponiblidad de energía eléctrica, nos permite alimentar iluminación ambiental para varias estancias y/o iluminación decorativa dentro del mismo equipo de calefacción. Apto sólo para iluminación de bajo consumo. Valores nominales de potencia de iluminación: BT-01 5W, BT-02 10W, BT-04 20W y BT-06 30W.
VENTILATION. With bioThERS, forced convection fans can be powered only with the energy released by fire. Convection fans increase the comfort feeling and reduce the time to thermally condition the room. Nominal values of air flow rate: BT-02 300m3/h, BT-04 600m3/h and BT-06 900m3/h.
VENTILACIÓN. bioThERS permite el accionamiento de turbinas de convección forzada que mejoran la sensación de confort y reducen el tiempo de acondicionamiento térmico de la estancia. Valores nominales de caudal: BT-02 300m3/h, BT-04 600m3/h y BT-06 900m3/h.
EXTRACTION. In facilities with low chimney flue or small section ducts, the incorporation of an extractor fan is often necessary. With bioThERS it is also possible to supply energy to power it.
EXTRACCIÓN. En instalaciones con poco tiraje o con conductos de extracción de pequeña sección es necesario la incorporación de extractores de humos. Con bioThERS también es posible alimentar estos extractores.
USB CHARGE. With bioThERS it is also possible to charge mobile devices such as smartphones, tablets, GPS, smartwatches, and so on. Nominal values of charging current:  BT-01 5V/500mA, BT-02 5V/1A, BT-04 5V/2A and BT-06 2x5V/1,5A.
RECARGA USB. Con bioThERS existe la posibilidad de recargar dispositivos mobiles como smartphones, tabletas, GPS, smartwatches, entre otros. Valores nominales de corriente de carga: BT-01 5V/500mA, BT-02 5V/1A, BT-04 5V/2A y BT-06 2x5V/1,5A.
WATER PUMPS. Considering biomass heating systems that include accumulation tanks for hot water or heating systems with radiators or undersoil heating, it is practical to use bioThERS to power the water recirculating pump. It is also possible to power pressure pumps up to 24l/min and 3mca.
BOMBAS DE RECIRCULACIÓN. Para equipos de calefacción con deposito de acumulación de agua caliente sanitaria ACS o con circuito de calefacción por radiadores o suelo radiante, es posible accionar la bomba de recirculación del agua. También es posible accionar bombas de presión de hasta 24l/min y 3mca.
FIREWOOD LOAD INDICATOR. The heating power generated by a biomass heating equipment depends on the amount of load as well as the type of wood used. With the fire charge indicator the user can always know if the heating equipment is supplying the nominal heat output. A blue light indicates that it is necessary to add more wood, the yellow light indicates that it is working at its optimal point and the red light indicates that it would be convenient not to add more fuel.
INDICADOR CARGA DE LEÑA. La potencia calorífica que genera un equipo de calefacción por biomasa depende de la cantidad de carga así como del tipo de madera utilizada. Con el indicador de carga de fuego el usuario puede saber en todo momento si el equipo de calefacción está suministrando la potencia calorífica nominal. Una luz azul indica que es necesario incorporar más leña, la luz amarilla indica que está trabajando en su punto optimo y la luz roja indica que seria conveniente no añadir más combustible.
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