The easy-fit, affordable and reliable boiler for traditional heating systemsThe i25 and i29 combi boiler is a highly reliable, energy efficient source of instant hot water and heat for domestic requirements that fits everyone’s budget.
2 year manufacturer’s parts & labour warranty for peace of mind
Energy efficient for lower fuel bills
Compact size for easy installation & maintenance
Choice of digital or mechanical timer
Optional wireless remote thermostat
ErP compliant high efficiency pump
Simple user-friendly controls with backlit display
LPG option available
Controls
The control panel of the i25 & i29 consists of a smart and user-friendly interface with backlit display. Push button controls allow for easy adjustment of the central heating flow temperature, hot water temperature, monitoring of the status of the boiler and switching on and off of the generator and comfort function.
Links to leaflet & manual:
i25 & i29 Brochure
i25 & i29 Manual
View Energy Labels
Click the images below to view the energy labels
| i25 | i29 |
 |
 |
| MODEL | i25 | i29 | |||
| Heat input | Min
Max Heating |
kW
kW |
7.5
25.0 |
8.3
28.0 |
|
| Heat output | 80°C – 60°C
50°C – 30°C |
Min
Max Heating Min Max Heating |
kW
kW kW kW |
7.9
24.1 7.8 25.9 |
7.9
27.0 8.6 29.0 |
| Efficiency | 80°C – 60°C
50°C – 30°C
30% partial load |
Pmax %
Pmin % Pmax % Pmin % Pmax % |
96.5
95.0 103.5 103.3 106.3 |
96.5
95.0 103.5 103.3 106.3 |
|
| NOx emissions | Class | 3 | 3 | ||
| DHW production | Δt 25°C
Δt 35°C |
l/min
l/min |
13.9
9.9 |
15.6
11.1 |
|
| Heating operating pressure | Max
Min |
Bar
Bar |
2.5
0.8 |
2.5
0.8 |
|
| ErP Class | Hot Water | A | A | ||
| Heating | B | B | |||
| DHW operating pressure | Max | Bar | 5 | 5 | |
| Maximum equivalent flue lengths | Max flue length | 60/100mm Ø | m | 6 | 4 |
| Max flue length | 80/125mm Ø | m | 12 | 12 | |
| Total equivalent length two pipe | 80mm Ø | m | 60 | 55 | |
| Empty weight | Kg | 35 | 35 | ||
| Dimensions | W x H x D | mm | 400 x 700 x 330 | 400 x 700 x 330 | |
Features & Benefits
Primary heat exchanger in pure copper protected by an atoxic aluminium treatment
Stainless steel copper brazed DWH heat exchanger
High efficiency ErP compliant pump for with low operating noise and torque control
Preheat hot water facility to provide rapid delivery to tap outlet
Condensate trap protects fan air pressure switch against external air humidity
Full diagnostic software ensures optimum reliability
Full frost protection to the boiler
Microprocessor-based PCB provides anti-seize operation of the pump following 24hrs of inactivity
