The Baxi Duo-tec Combi boiler is a firm favourite with installers and householders because it is straightforward to install and simple to use. It is an Energy Saving Trust endorsed product, so you can be sure it meets the highest standards of energy efficiency.
We are so confident in the reliability of the Baxi Duo-tec Combi that we are offering a 7-year warranty as standard on all Baxi Duo-tec boilers installed before 31st December 2016*.
Please note: warranty and purchasing information on this site applies to the UK only. For information on how to buy these products in the Republic of Ireland, please visit Baxi Potterton Myson.
A: Boiler width = 450mm
B: Boiler height = 780mm
C: Boiler depth = 345mm
D: Side clearance = 5mm
E: Upper clearance = 200mm
F: Lower clearance = 150mm
G: Front clearance = 5mm in operation, 450mm for servicing
|Duo-tec Combi 24||Duo-tec Combi 28||Duo-tec Combi 33||Duo-tec Combi 40|
|Heat Output Central Heating (CH) (70°C Mean)||kW (Max)||20||24||28||33|
|Heat Output DHW||Output - kW (Max)||24||28||33||40|
|Maximum DHW Flow Rate (Delta T @ 35°Max)||l/min||9.8||11.5||13.5||16|
|Minimum DHW Flow Rate Required*||l/min||2||2||2||2|
|Minimum Operating DHW Pressure Required||bar||0.15||0.15||0.15||0.15|
|SEDBUK 2005 Seasonal Efficiency NG||%||91.1||91.1||91.1||91.1|
|SEDBUK 2009 Seasonal Efficiency NG||%||89||89||88.9||88.9|
|NOx Class (5 being lowest)||1 - 5||5||5||5||5|
|Mechanical & Hydraulic Connections|
|CH Flow/Return Pipe Size||(mm)||22||22||22||22|
|DHW Flow/Inlet/PRV Size||(mm)||15||15||15||15|
A Multifit GasSaver can be installed with the boiler and could contribute additional annual gas savings on domestic hot water of up to 37%** - meaning even more savings on your fuel bills and greater benefit for the environment.
**Test conducted by independent scientific test house, TNO. Calculation based on an average household's consumption of 100 litres of hot water per day. Results were based on a comparison of a SEDBUK 2005 (> 90%) rated high efficiency boiler versus a high efficiency boiler and GasSaver.
Read more about the Baxi Duo-tec Combi by taking a look at our product literature, whether looking for instructions on what to do when changing a boiler part, or finding out about the benefits of using a Baxi.
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