
Specifications
- Reference
- VM-20040655
- Material, heat exchanger
- Copper
- Closed finish
- No
- Open and closed finish
- Yes
- Nominal useful output 80-60 °C
- 18kW
- Suitable for low-calorific natural gas
- Standard factory setting
- Suitable for propane
- Not suitable
- Suitable for butane
- Not suitable
- Suitable for methane
- Not suitable
- Adjustable heating power
- Yes
- Ignition flame
- No
- Conversion kit available
- No
- On/off control signal
- Yes
- High/low control signal
- No
- OpenTherm control signal
- No
- Control signal 0-10 V
- No
- High/low burner regulation
- No
- Modulated burner control
- Yes
- Maximum temperature of the inlet water (operating temperature)
- 83°C
- Minimum setback temperature
- 1°C
- Minimum working pressure
- 0.3bar
- Max. operating pressure
- 3bar
- Maximum upstream gas pressure
- 30mbar
- Minimum upstream gas pressure
- 20mbar
- Second outlet connection
- No
- Faucet base
- 1.5l/min
- Available hot water network volume at 60 °C
- 0l/min
- Rated voltage
- 230V
- Sanitary hot water reservoir
- 0l
- Integrated pump switch
- No
- Integrated ambient conditions controller
- No
- Integrated expansion vessel
- No
- Integrated overpressure valve
- No
- Height
- 740mm
- Depth
- 310mm
- Width
- 418mm
- Supply connection
- Serrage
- Nominal diameter of the supply
- 3/4 inch (20)
- Diameter outside of the inlet pipe
- 22mm
- Return connection
- Serrage
- Nominal diameter return
- 3/4 inch (20)
- Diameter outside of the return pipe
- 22mm
- Connection, fuel
- Serrage
- Nominal inner diameter fuel
- 1/2 inch (15)
- Diameter outside of fuel pipe
- 15mm
- Connection, air duct
- Other
- Nominal diameter of the air duct
- 0mm
- Connection, flue gas discharge
- Other
- Nominal diameter of the duct, flue gas discharge
- 130mm
- Cold drinking water connection
- Other
- Nominal diameter, cold drinking water
- 3/4 inch (20)
- Hot water connection
- Other
- Nominal diameter of the hot water connection
- DN 50
- Energy efficiency of hot water
- 66%
- Capacity profile
- XL
- Useful heat emission at nominal heat in high temperature operation (P4)
- 18.1kW
- Useful efficiency at nominal heat in high-temperature operation (n4)
- 79.9%
- Additional full-load electricity consumption (Elmax)
- 0.01kW
- Heat loss in standby (Pstby)
- 0.15kW
- Additional standby electricity consumption (Psb)
- 0.01kW
- EAN code
- 3532041741071
Key features
- Height: 740mm
- Material, heat exchanger: Copper
- Open and closed finish: Yes
- Nominal useful output 80-60 °C: 18kW
- Suitable for low-calorific natural gas: Standard factory setting
About this product
Bulex. ThemaTek. C 18/24-LC/1. Non-condensing gas wall boiler. Open boiler for heating and domestic hot water. Heating body cooled by water in copper. Universal atmospheric burner in stainless steel. Sanitary plate heat exchanger in stainless steel. Electronic ignition. Built-in high-efficiency pump: with adjustable flow. Approval B11BS. Thermostat connection ON/OFF or eBUS. Warning light. Frost protection, low water protection. Built-in expansion vessel, pressure relief valve and bypass. Supplied without filling set. ErP Ready.
Delivery and returns
Free delivery in Belgium from €65 excl. VAT
In stock · ships in 3-6 working days
14-day right of return
Free delivery in Belgium from €65 excl. VAT, otherwise €9.95. Delivered in 3-6 working days when in stock. Manufacturer warranty according to the product.
Manufacturer warranty
2 year manufacturer warranty
Minimum 2-year manufacturer warranty + Valtieri after-sales included
Secure payment
VAT invoice with every order
incl. 21% VAT · excl. 21% VAT
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