Baxi Duo Tec Combi LPG Boiler

Baxi Duo-tec Combi LPG

One of Baxi’s most popular boilers especially designed for homes using LPG.

  • Features
  • Dimensions
 Baxi Duo Tec Combi LPG


*Terms & conditions apply

Baxi Duo Tec Combi LPG


  • Boiler width = 450mm
  • Boiler height = 780mm
  • Boiler depth = 345mm
  • Side clearance = 5mm
  • Upper clearance = 200mm
  • Lower clearance = 150mm
  • Front clearance = 5mm in operation, 450mm for servicing

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Baxi Duo Tec Combi user guide

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Installer Information

  • Technical Features
  • Technical Data Table
  • Technical Literature
  • Product Training
  • Dedicated 28kW LPG model
  • Easy to install and service
  • Full wall mounting jig
  • Choice of flue lengths

Baxi Duo-tec Combi LPG 28 Combi
Sales code 7219417
Concealed user controls Yes
On/off switch with reset Yes
User adjustable DHW temperature Yes
User adjustable CH temperature Yes
LED temp / status / fault diagnosis display Yes
Gas supply connection mm 22
Natural gas Yes
LPG (propane) N/A
Nominal inlet supply pressure NG mbar 20
Nominal inlet supply pressure LPG mbar N/A
Maximum gas rate m3/hr 3.1
Heat input central heating kW max gross (QnHs) 27.4
kW min gross (QnHs) 10
Heat output CH non condensing kW max (Pn) 24
kW min (Pn) 8.7
Heat out CH condensing kW max (Pnc) 25.9
kW min (Pnc) 9.5
Heat input domestic hot water (DHW) kW max gross (QnwHs) 32.1
Heat output domestic hot water kW max (Pn) 28
Maximum domestic hot water flow rate l/min @ 35oc 11.5
SAP 2009 annual efficiency (PCDB/SEDBUK) % 90.6
Nox Class 5
ErP Product information
NOx mg/kWh 23
Sound power level, indoors Lwa dB 53
Space heating efficiency class A
Water heat declared load profile XL
Water heating efficiency class A
Electrical supply Volts/Hz 230V/50Hz
Permanent live required Yes
Fitted electrical cable
Power consumption Watts 120
External fuse rating Amps 3
Internal fuse rating Amps F2L
Ingress protection rating (without electro-mechanical timer fitted) IPX 5D
24 hour pump exercise Yes
Pump overrun Yes
Integral 'boiler only' frost thermostat Yes
Mechanical and hydraulic
Compartment ventilation requirement None
Pre-plumbing / wall mounting jig Yes
Flow and return pipe size mm 22
Condensate discharge pipe size mm 21.5
Integral automatic bypass Yes
Min domestic hot water flow rate l/min 2
Min domestic hot water operating pressure bar 0.15
Maximum DHW system pressure bar 8
Safety discharge pressure bar 3
Integral expansion vessel capacity litres 8
Max capacity of central heating system litres 125
Filling loop included Yes
CH system inhibitor required Yes
Concentric Flue System
Standard horizontal flue kit length mm 685
Max equiv length horizontal / vertical (60/100mm) m 10
Max equiv length horizontal / vertical (80/125mm) m 20
Equivalent length per 135obend m 0.5
Equivalent length per 93obend m 1
Twin pipe flue system
Diameters mm 80/80
Max equiv length horizontal / vertical (parallel pipes) m 15/15
obend m 0.25
obend m 0.5
Max installation lift weight kg 40.2
Gross packaged boiler weight kg 46

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