Piazzetta MP 973 - Load-Bearing Capacity of the Floor; Heating Capacity; Suitable Heat Insulating Materials

d Gas appliances of type B are not allowed (refer to current legislation and regulations in the place of installation).
d The stove or rebox must not be used simultaneously with collective type ventilation ducts with or without extractor fan, other
devices or other appliances such as: forced ventilation systems or other heating systems using ventilation to change the air. Such
systems could cause a vacuum in the environment of installation even if installed in adjoining or communicating rooms.
d The stove or rebox must not be used: in stairwells except in buildings with no more than two apartments; in corridors for common
use; in bedrooms; in bathrooms or shower-rooms.
Check the load-bearing capacity of the oor by adding together: the weight of the protections (lining walls), insulating materials, surround and the
stove (given in the paragraph “TECHNICAL DATA”).
If the oor has an unsuitable load-bearing capacity, take adequate countermeasures.
Check the heating capacity of the appliance by comparing the rated power given in the paragraph “TECHNICAL DATA” with the power required by
the environment to be heated.
The energy requirement may be calculated approximately by multiplying the square metres of area by the height of the ceiling; the result is then
multiplied by a coefcient, which depends on the degree of insulation of the building, that is, on internal and external factors of the dwelling:
- Internal factors: type of window and door frames, thickness of the insulation and walls, type of building materials, presence of stairwells, walls
with extensive glazing, high ceilings, position of the rooms to be heated in relation to other adjacent heated or unheated rooms, ….
- External factors: geographical position, average outdoor temperature, exposure, wind speed, latitude, altitude, …
Example of approximate calculation of the energy requirement to heat a xed volume to 18/20° C:
The coefcient that is normally used is determined according to the real conditions as they occur case by case.
• From 0,04 to 0,05 kW per cubic metre in a well insulated environment.
• From 0,05 to 0,06 kW per cubic metre in a poorly insulated environment.
3 rooms measuring 20 m
2
X (H ceiling) 2.7 m = 162 m
3
(volume)
In an environment with a good degree of insulation, an average value (coefcient) of 0.045 kW may be taken
162 (volume) X 0,045 (kW) = 7,3 kW necessary (6300 kcal/h)
Conversion 1kW = 860 kcal/h
a Consult a heating technician or engineer for a correct check and calculation of the requirement of the environments to be heated (see
“REFERENCE STANDARDS”).
a Rated power being equal, products with the Multi-re system can evenly distribute heat throughout the rooms to be heated.
Type of suitable heat insulating materials.
Material: mineral bre; ceramic bre; rock wool.
Form: sheets; mat; shells.
Specications: specic weight of at least 245 kg/m³ with working temperature limit of at least 1000°C.
Thermal conductivity
λ (400°C) ≤ 0,1 W/mK
Thickness: as shown in the gures in the paragraph “MINIMUM SAFETY DISTANCES”.
a If the insulating material is not lining the walls, it must be xed all over the surface of the walls with anchorage points every 30 cm.
Material coded “AGI Q132” or “DIN 18895” is allowed for heat insulation.
DT2010171-00
1.6 LOAd-bEARING CAPACITy OF ThE FLOOR
DT2010130-01
1.7 hEATING CAPACITy
DT2010173-01
1.8 SUITAbLE hEAT INSULATING MATERIALS
H072047UK0 / DT2001513 – 04
8
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