Welcome to our madaboutheat.com website for multifuel, solid fuel, log, pellet burners, boilers and stoves.
Cart 0

CTBi 18kW Wood Pellet Biomass Central Heating Boiler.

£3,485.00




CTBi 18kW Wood Pellet Biomass Central Heating Boiler.

 CTBi Wood pellet boilers with multi fuel capability, rear heat exchanger system allowing for increased size of firebox. Suitable for 50/50 automatic and manual solid fuel burning.
Power range is 18-200kW.

The green pellet burners in our shop are the CTBi range, well known for their simplicity in design and operation whilst providing reliable and efficient performance at affordable costs.
The no nonsense approach to automatic multifuel boiler design, utilities on increased length of flame and hot fumes gases exposure to heat exchanging elements. TPBI model unlike other boilers we sell, are achieving higher efficiency values because of location of the heat exchanger. Whereas the PBI or DPBI units have heat exchanger located in the upper part, CTBi burners try to centralise the heat by locating most of the channels towards the back. Although the grate is removable the multi fuel capability is already on par with smaller manual and semi manual boilers, this being due to the heat exchanger plates being located at the rear. The overall boiler height is reduced and is more user friendly for most, please see the diagram picture. Although the self ignition module is available as an option on this model of the multi fuel boilers, the solid design working in conjunction with top of the range controller makes most of fuel to increase overall efficiency and making do without the module.

In the automatic mode the pelletised fuel is stored in a hopper, pellets should be no bigger than 20mm cube and can be wood, pea coal, slack or other fuel in that form. Inside the hopper which is attached to one side, is fuel which is delivered by auger system to the centre of firebox where air is injected around the burn zone to excite the flame. This process is a standard system across most of boilers that are currently in production.

When loading the boiler manually with the likes of wood, coal or other solid fuel, the middle and top door is used allowing to take full advantage of the located at the rear, heat exchanger plates giving almost like semi automatic boiler, size of the firebox.


The computer located on top, is in control of air quantity, fuel supply rate and 2 water pumps.

A build in boiler flame protection system safeguards fuel store making the burner exploitation a safe and reliable operation.

In Parameters table below, shown are individual unit dimensions and available power outputs.

High efficiency
Long rear re-circulation
Hopper refills 3-21 days (depending on temp)
Solid finish
Modern controller
Cleaning periods 2-3 months
Ash emptying 1-2 months
Multi fuel capability
Automatic fuel feeding
Ideal for all central heating applications vented or pressurised / sealed systems and we suited for burning most of solid fuels. The CTBi range of multifuel wood pellet boilers can also be used for working in conjunction with other boilers of different fuel and to provide hot water for under floor heating and swimming pools.

Relevant European approval.

As with the rest of our items this wood boiler is a 100 % European product.

CTBi Boiler Spec
 
 
 
 
 
 
 
 
 
 
Power output
[kW]
18
22
26
39
50
75
100
150
200
Heated area (up to)
[m2]
200
220
300
400
500
700
900
1400
1800
Hopper size
[kg]
130
130
145
180
220
313
482
634
698
Efficiency
[%]
91
90
Max water temp
[ºC]
85
95
85
Max working pressure
[MPa]
0,15
Max test pressure
[MPa]
0,25
0,23
0,25
Total Weight
[kg]
339
353
486
530
640
720
1000
1200
1800
Required flue draw
[Pa]
20
25
30
35
Volts
[V]
230
400
Power consumption
[W]
90
84
264
Boiler water volume
[L]
53
58
67
73
79
-
Heat exchanger area
m2
1,7
1,9
2,9
3,9
5,0
-
Flue diameter
[mm]
158
158
158
190
190
240
350
350
320 x 320
Water plumbing
[cal]
1 1/2"
2"
Boiler diamensions
 
 
Width
[mm]
1170
1170
1145
1220
1250
1600
1760
1900
2160
Depth
[mm]
778
778
820
950
950
950
1160
1460
1560
Depth with flue
[mm]
980
980
1050
1260
1260
1350
1540
1870
2010
Height
[mm]
1076
1106
1270
1400
1400
1600
1640
1640
1640

Share this Product