Choosing an innovative product means to choose the technical characteristics that best combine efficiency and performances with ease of use and installation. Why To Choose Caldaria Condensing Efficiency Wall-hung condensing boilers with high efficiency (up to 108%) and low power consumption typic...
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Click on the Model for technical data, dimensions, accessories
Caldaria - condesing, for outdoor installation, equipped with climate probe, support bracket and LPG gas kit, with special winter kit it can work till -40°C temperature
Caldaria 35 Condensing 9.3-30.9 kW modulating heat output, efficiency 98-108.1%, weight 47 kg, 2 year WARRANTY
Caldaria 35 Condensing
9.3-30.9 kW modulating heat output, efficiency 98-108.1%, weight 47 kg, 2 year WARRANTY
Caldaria 75 Condensing 10.8-73.2 kW modulating heat output, efficiency 97-108.6%, weight 70 kg, 2 year WARRANTY
Caldaria 75 Condensing
10.8-73.2 kW modulating heat output, efficiency 97-108.6%, weight 70 kg, 2 year WARRANTY
Caldaria 100 Condensing 14.4-96.8 kW modulating heat output, efficiency 98.2-108.7%, weight 90 kg, 2 year WARRANTY
Caldaria 100 Condensing
14.4-96.8 kW modulating heat output, efficiency 98.2-108.7%, weight 90 kg, 2 year WARRANTY
  Caldaria 35 Caldaria 75 Caldaria 100
Nominal heat input (Hs) max kW 35.0 75.0 100.0
min kW 10.5 11.0 16.0
Nominal heat input (Hi) max kW 31.5 67.5 89.9
min kW 9.5 9.9 14.4
Nominal heat output 100% 80/60 °C kW 30.9 65.5 88.3
60/40 °C kW 32.9 72.1 95.4
50/30 °C kW 34.1 73.2 96.8
Efficiency at full load 80/60 °C % 98.0 97.0 98.2
Av.T=50°C (60/40 °C) % 104.5 106.6 106.1
50/30 °C % 108.1 108.3 107.7
Efficiency at reduced load 30% 80/60 °C % 98.0 99.4 98.7
Av.T=50°C (60/40 °C) % 105.5 106.4 106.6
50/30 °C % 109.2 108.6 108.7
Electrical supply   230 V 1N - 50 Hz
Installed wattage W 180 335 335
Hydraulic connections diameter ”M 3/4" - -
Flow/Return water pipe manifold diameter ”M - 1" 1"
Inlet gas pipe diameter ”M 3/4"
Flue manifold diameter n./mm 1/50 2/50 2/50
Condensate pipe diameter mm 18
Flue temperature °C +5°C + H2O
Return T
+3°C + H2O
Return T
Dimensions Width mm 450 600 600
Height mm 850 1000 1000
Depth mm 350 380 380
Empty weight kg 47 70 90

Dimensions

CALDARIA CONDENSING 35

Caldaria 35 dimensions

CALDARIA CONDENSING 75/100

Caldaria 75/100 dimensions
  1. Front Panel
  2. Underneath Removable Panel
  3. Above Panel
  4. Side Panel
  5. Connections Panel (after removing panel n.2)
  6. Condensate Drainage and Safety Valve
  7. Flow
  8. Gas
  9. Return
  10. Power Supply Plug
  11. Gland for Activation Signal Cable (Remote Control)
  12. Flue diameter 50 mm

Choosing an innovative product means to choose the technical characteristics that best combine efficiency and performances with ease of use and installation.

Why To Choose Caldaria Condensing

Efficiency

Wall-hung condensing boilers with high efficiency (up to 108%) and low power consumption typical of condensing gas boilers with sealed chamber. An innovative high-heat exchanger allows reduced contents of CO and NOx (about half of the highest class (V) according to the technical standard EN 297), making possible an outlet pipe of only 50 mm for each heating element, saving even on flue system costs.

Flexibility

Thanks to the different models of Caldaria you can heat any building (residential, industrial, commercial and service sector such as supermarkets, public and sport buildings) with any distribution system. Models 75 & 100 can handle multiple heating circuits simultaneously, for instance high temperature (heaters, radiators), low temperature (floor heating), and for DHW production.

Indoor or Outdoor Installation

Caldaria Line is certified for indoor installation as well as for outdoor installation, and is equipped with safety devices for operation till -15°C. If required units can be ordered with special winter kit alowing it to work till -40°C. Outdoor installation does not require any additional security accessory.

Modularity

Flexibility Also With High Power. Caldaria boilers are designed to be installed in battery, controlled by one Master Card (standard supplied with every boiler). You can therefore match up to 31 Caldaria Condensing Units in cascade, in order to achieve power stations with 3,000 kW installed power.

Caldaria installation example 1

Caldaria installation example 2

 

Example of installation of one Caldaria Condensing 75 or 100 with one single primary circuit of fan-coils (see the image above) or with 3 circuits: high temperature, low temperature and for DHW (see the image on the right).

 

  • A - Water Pump for Primary Circuit
  • B - Flow Water Sensor
  • C - Vertical Water Collector
  • A.T. - High Temperature Circuit
  • B.T. - Low Temperature Circuit
  • SAN. - Production of Domestic Hot Water

Caldaria heat exchangerThe Features That Make The Difference

Caldaria heat exchangerSpecial Thermal Module with bimetallic heat exchanger (inner copper: side water, outside steel: side flue) that allows a high heat exchange between the flue gas circulating outside and the water of the plant circulating internally in countercurrent. This special heat exchanger with high efficiency (4 stars according to the Boiler Efficiency Directive 92/42/EEC) allows for a delta T of only 3° C between the return water temperature and the flue temperature, with considerable savings even in high temperature plants such as radiators. Caldaria 35 is equipped with one modulating thermal module, Caldaria 75 & 100 are equipped with two thermal modules with independent modulation, managed by a single control system in cascade.

Microprocessor Card for the modulation of the flame (from 15% to 100% of the power in the models 75 & 100) in order to provide a heat output proportional to the real heating demand.

Outdoor Temperature Probe. Caldaria Condensing can work with the principle of outdoor reset curve that allows to automatically vary the flow temperature in relation to the external air temperature (the sensor is standard for models Caldaria 75 and 100).

Circulation Pump and Secondary Circuit Control. Caldaria 35 is already equipped with a modulating water pump controlled by the control board and can regulate the Delta T between flow and return temperature. Master electronic board of Caldaria 75 and 100 is able to control and activate the pumps of up to three heating circuits, even with different temperatures (high temperature loop, pre-mixed low temperature loop and DHW).

  Caldaria 35 Caldaria 75 Caldaria 100
Pre-mix Burner With Low NOx + + +
Burner Modulation Control System
(70% Caldaria 35 - 85% Caldaria 75 & 100)
+ + +
Bimetallic Heat Exchanger Water/Flue + + +
Condensate Trap On Board + + +
Digital Display On Board (For Boiler Parameters Setting) + + +

+ in standard
? ordered separately
- not available

  Caldaria 35 Caldaria 75 Caldaria 100
Wall Support Bracket + + +
Drilling Template + + +
Remote Digital Control Unit
(w/Hourly Programming, Errors Signalization and Setting of Both Boilers and Ambient Parameters)
? ? ?
Digital Programmable Thermostat ? ? ?
Outdoor Temperature Probe ? + +
Flow Temperature NTC Probe + + +
Secondary Circuit NTC Probe - ? ?
Circulation Pump + - -
2-Way Valve Kit for Hydraulic Circuits - ? ?
Water/Gas Distribution Manifolds Kit Ø 45 - ? ?
Flue/Air Pipes and Curves Ø 50 mm or 80 mm ? ? ?
Flue Gas PP Manifold (2 inlets Ø 50 mm, outlet Ø 125 mm) - ? ?
Condensate Drainage Kit for Flue Gas Manifold Ø 125 mm - ? ?
Flue Exhaust Terminal in PP Ø 50 mm (for outdoor installation of the boiler) ? ? ?
Aluminium Flue Pipe Adapter Ø 50/80 mm ? ? ?
Wall- or Roof-External Terminal Ø 80 mm (for indoor installation of the boiler) ? ? ?
Inlet Air Supply Kit (for indoor installation with sealed combustion circuit) ? ? ?

+ in standard
? ordered separately
- not available

Caldaria condensing gas boilers
Manuals 6.3 MB
Declarations of conformity 679 KB
Brochures 730 KB