


The Fondital Antea RBTFS 40 kW gas boiler is a wall-mounted, single-circuit heating appliance with a forced flue gas removal system. It is designed for efficient heating of residential premises such as apartments and private houses in water heating systems. The built-in three-way valve allows you to connect an external indirect heating boiler. This model does not include a vacuum expansion tank. Thanks to its highly efficient copper heat exchanger, the boiler can heat premises with an area of 130 to 410 m², demonstrating an average efficiency of 93%.
Main Features of Fondital Antea RBTFS 40:
Modern electronic control system with power modulation function.
Electronic ignition and flame control using an ionization electrode.
Stainless steel burner adapted for various types of gas.
Copper heat exchanger with high heat transfer efficiency.
Double gas valve for reliable operation.
Circulation pump with automatic air vent function.
Mechanical three-way valve for boiler connection.
Pressure and temperature control sensors.
Flue gas fan.
Automatic bypass for stable system operation.
Drain tap for easy maintenance.
Interface and Ease of Use:
LCD display showing the current operating mode (OFF, SUMMER, WINTER, HEATING).
Adjustment of heating water temperature: from 35 to 78°C.
Setting hot water temperature: from 35 to 65°C (with a boiler sensor).
Built-in pressure gauge for pressure control.
Protection Functions and Features of Operation:
Automatic flame modulation for smooth ramp-up to maximum power.
Anti-freeze protection for the boiler and boiler (activated at temperatures below 5°C).
Combustion testing mode ("chimney sweep"), limited to 15 minutes.
Setting the maximum power in heating mode.
Post-circulation pump function after operation and in protection modes.
Post-ventilation for overheating protection (automatically activated at temperatures above 78°C).
Delay between ignition cycles to protect equipment (default is 240 seconds).
Quality and Reliability from Fondital
Fondital is one of the world's leading manufacturers of heating equipment, combining Italian technology, innovative developments, and strict quality control. Internal laboratories and experienced engineers ensure the reliability and efficiency of the products. The Fondital Antea RBTFS 40 kW combines reliability, economy, and ease of operation, making it an excellent choice for heating systems.
Type: | Classic |
Power, kW: | 40,0 |
Heating surface, m²: | 400 |
Number of circuits, units: | 1 |
Combustion chamber type: | Closed (Turbo) |
Number of heat exchangers, units: | 1 |
Efficiency, %: | 93 |
Maximum gas consumption, m³/h: | 4,1 |
The volume of the expansion vessel, l: | 10 |
Sizes, mm: | 700x400x250 |
Weight, kg: | 25,0 |
Chimney diameter, mm: | 60/100 |
Maximum pressure, bar: | 3 |
Heating connection, inch: | 3/4 |
Water connection, inch: | 1/2 |
Gas connection, inch: | 3/4 |
Coutry of brand: | Italy |
Energy efficiency class: | A |
Installation method: | Vertical |
Display: | Yes |
Destination: | Heating/water supply |
Color: | White |
Electrical safety class: | IP X4D |