VAILLANT ECOFIT PURE COMBI BOILER
The combination range features 25, 30 and 35kW output models. The ecoFIT pure range of combination boilers is ultra-quiet in operation and has a small footprint, proving total flexibility of siting. The rear and top flue option means this boiler range is the perfect solution for fitting inside a standard kitchen cupboard unit.
Product Information
Lightweight Installation
- The automatic purging assistant and high specification, automotive grade, aluminium heat exchanger makes for a lightweight installation.
10-year guarantee available
- Free 2-year guarantee out of the box as standard. Extended guarantee available when installed with a Boiler Protection Kit and registered on Advance.
Boiler Plus compliant with Vaillant controls
- Install with sensoHOME, VRT 350 or timeSWITCH 150 and sensoROOM pure for a load compensated system.
Compact, cupboard fit solution
- A smaller footprint, cupboard fit dimensions and top and rear flue options offer flexibility of siting with rear and top flue option.
High specification aluminium heat exchanger
- Designed for longer life, easier maintenance, and lower energy bills.
Easy installation and maintenance
- Accessible layout allows all components to be replaced from the boiler front, with removable side panels for even more access and reduced installation time.
Flue options (sold separately)
- 60/100 push fit flue system with full range of accessories.
- 80/125 flue system option for even longer lengths and installation flexibility.
Pneumatic gas and air modulation system
- For precise self-setting gas combustion to improve performance and lower emissions.
4-sided cooling and water agitation of the heat exchanger
- Reducing stress on the heat exchanger for longer life, reliability, and reduced maintenance costs.
Product Dimensions
ecoFIT pure 825
ecoFIT pure 830
ecoFIT pure 835
Boiler output
25 kW
30 kW
35 kW
Boiler Ref
0010020389
0010020390
0010020391
Boiler dimensions
(H x W x D)
702 x 390 x 295 mm
702 x 390 x 295 mm
702 x 390 x 295 mm
NOx (En 15502-2-1)
39 mg/kWh
39 mg/kWh
39 mg/kWh
ErP efficiency (heating / DHW)
A / A
A / A
A / A
ErP efficiency
94 %
94 %
93 %
ErP decibel rating (sound power)
49 dB(A)
51 dB(A)
52 dB(A)
Nominal heat output range at 50/30˚C (condensing mode)
5.3 - 19.1 kW
6.3 - 26.5 kW
7.5 - 26.7 kW
Nominal heat output range at 80/60˚C (non condensing mode)
5.1 - 18.3 kW
6.1 - 25.4 kW
7.2 - 25.5 kW
Maximum flow temperature
80 ˚C
80 ˚C
80 ˚C
Maximum heat output for water generation
25.7 kW
30.6 kW
35.7 kW
Lowest water pressure to operate boiler
0.3 bar
0.3 bar
0.3 bar
Domestic hot water flow rate (at ∆t = 35K)
10.4 l/min
12.2 l/min
14.1 l/min
Hot water output temperature range
35 - 60 ˚C
35 - 60 ˚C
35 - 60 ˚C
Expansion vessel size
8 Litres
8 Litres
8 Litres
Heat exchanger material
Aluminium
Aluminium
Aluminium
Gas inlet connection (pipe size)
15 mm
15 mm
15 mm
Heating flow and return connections (pipe size)
22 mm
22 mm
22 mm
Hot and cold water connections (pipe size)
15 mm
15 mm
15 mm
