Bouilleurs de France is a registered trademark and has a patent.
*: 4.18 = specific heat of water. The division by 3600 is used to express the result in kilowatts. See our page "Calculate the storage tank"
**: Temperature difference between flow and return of the circulating water.
65 kg x 4 kW / kg
Data provided by the manufacturer Invicta
260 kilowatts x 0.71 rd
(4544 liters x 4.18 x 8.2 * C **) / 3600
(184.6 + 43.3 kW kW) / 260 kilowatts
Management control of Bouilleurs de France
: 260 kilowatts
: 184.6 kW
: 43.3 kW
Energy from wood combustion
Return home only
Energy produced by radiation
Energy produced by the C215
Total efficiency of the system
Running time of the pump
: 2:15 p.m.
: 4544 liters
: 6 kilowatts
: 65 kg by weighing
: 4.56 kg / hour
Test conditions :
For this test a sensor is placed in the flue after the heat exchanger, a sensor is placed on the stainless steel tube after the heat exchanger, a water inlet sensor and a sensor in the water outlet. Initial pressure at 12 ° C at 1.7 bar mounted two bars to the highest temperature. The pump is set to the lowest speed and allows a flow rate of 450 liters per hour (measured value).
The heat exchanger is tested C215 placed directly on the stove 700 Invicta by a diameter adapter 200/220 mm. The output of the heat exchanger flue pipe is Isotip-Joncoux in 200 mm over a length of 4.5 meters.
The wood is burned in the chestnut tree large logs, clearly dry less than 20% of humidity after two years of drying.
The temperature measurement is done using a digital controller memory PCE - T390 with 4 temperature sensors type high temperature K.
The results in figures :
Mean value of the duration T °C of the water return
Mean value of the duration T °C Water in starting
Averaged over the length of the conduit of T C
Averaged over the duration of T °C flue
Test time ............................................................
Total water flow ...................................................
Power dissipation connected .................................
Number of reloads wood ......................................
Total weight of wood consumed ............................
Average consumption of wood per hour .................
- The efficiency of the installation of wood heating was increased by 17% through the installation of a C215 which is remarkable.
- The control of Boilers France has cut the circulation in the lower stages of the fire and thus preserved the duct contamination.
- Factory settings regulators at 130 ° C for smoke and 45 ° C for water parfaitemement are suitable for optimizing the operation.
For the calculation we can estimate that the C215 have 1000 liters of water heated to 50 ° C to 87 ° C in the time period of this test, which is generally sufficient to ensure charging a storage tank that capacity and ensure the autonomy necessary for the proper operation of the heating system of a house of 120 sqm with 10 kW heaters for more than 4 hours, maintaining a temperature of circulating water in a radiator minimum of 50 ° C. A simple system for controlling the outlet temperature to radiators storage tank will be put in place to prevent the circulating water is at too high a temperature.
Test # 1: Demonstration of the gain obtained in normal use of a C215 on stove 14 kilowatts - 71% rd
Test # 3: Highlighting the difference in temperature of the smoke before / after a heat exchanger C150
Zone A : Lighting the fire, draw maximum aperture, after ten minutes the thermal sensor activates the pump, the water starts to move and the red curve representing the temperature of the air leaving the radiator (bottom) off slowly .
Zone B : Closure of the draw, the flue gas temperature drops, the air temperature (radiators) continues to grow and stabilize, the thermal equilibrium is reached in less than an hour after ignition.
Zone C : Each temperature rise corresponds to a recharging of the timber insert. We can see that the difference in input and output temperatures of the heat exchanger remains stable. "Fines" downward spikes correspond to door openings time reloading.
Zone D : Re-opening of the draw, without reloading the fireplace wood fire still supplies enough heat exchanger for further 2 hours. The outlet temperature of the radiators down gently.
Meter: Digital Thermometer memory PCE - T390 with 4 temperature sensors Type K high temperature. Duration 675 minutes. Total wood consumption for the whole test: 27 kg (2.43 kg / hour)
1 for the test sensor is placed in the flue at the base the heat exchanger 1 sensor placed in the flue at the outlet of the heat exchanger, one sensor is placed just above a radiator 1 and sensor measures room temperature (test performed outdoors). Initial pressure at 19 ° C to 1.8 bars 2.2 bars mounted to the highest temperature. The pump is set to the lowest speed and allows a flow rate of 440 liters per hour (measured value).
Average flue gas temperatures before the exchanger: 519 ° C.
Average flue gas temperatures after the heat exchanger 252 ° C.
Average temperature difference before / after exchanger 267 ° C.
Average air temperature radiators: 61 ° C.
Average ambient air temperature 24 ° C.
Test # 2: Demonstration of the difference between °C flue and °C external of the flue pipe
Zone A: Lighting the fire, maximum opening draw, after ten minutes the thermal sensor activates the pump, the water starts to flow and curves of water (bottom) take off gently (start recording after 3 minutes lighting the fire).
Zone B: Closure of the draw, the flue gas temperature drops, the water temperature continues to rise.
Zone C: Re-opening of the draw, flue rising temperatures.
Zone D: Closing the draw, further drop in temperature of the smoke but little action on the water temperature.
Zone E: Re-opening of the draw, without reloading the fireplace wood fire still supplies enough heat exchanger for 2 hours.
Meter: Digital Thermometer memory PCE - T390 with 4 temperature sensors type K high temperature. Duration 183 minutes.
1 for the test sensor is placed in the flue after the heat exchanger, one sensor is placed on the stainless steel tube after the heat exchanger Poujoulat, 1 sensor water inlet and sensor 1 water outlet. Starting pressure at 20 ° C at 2 bar to 2.5 bar mounted at the highest temperature. The pump is set to the lowest speed and allows a flow rate of 440 liters per hour (measured value).
It may be noted that the water has exceeded 110 ° C without reaching the boiling temperature (above 100 ° under the pressure), the power dissipation was limited to 2500 watts to highlight the reliability of the system . With 5000 watts of dissipation (radiators) and a good high heat is still around 65 ° C which can heat 50-70 m² following the isolation of the habitat and / or to produce hot water for an outbreak of 4 to 8 people according to time of use.
Our test temperatures
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Bouilleurs de France
it is the intelligent heating, which quickly pays for itself !
Heating most economical and ecological to warm you thanks to the smoke of your fireplace or your stove.
An innovative way to produce hot water, a perfect blend between wood burning and solar.
Our product does not cause any additional consumption of wood, it uses waste heat from the smoke stack.
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