Main Eco Compact System

System Boilers

Main Eco Compact System

The new cupboard fit Main Eco Compact System boiler is the perfect choice for homes with more than one bathroom, to satisfy all its hot water needs. 

 

It is easy to install and service, with front access to all components and central top flue, while its five year warranty*, good looks and simple controls make it the perfect choice for householders.  

Double points return for Baxi installers

Now even bigger and better!

 

We’re giving you double points on qualifying products from 6th Jan – 2nd March 2026. Work done. Points doubled – simple.

 

All you need to do is install and register qualifying products on our loyalty scheme Baxi Works and those double points are yours!

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Features and Benefits 

5-years parts and labour warranty

    Choice of 15kW or18kW

      Pipes behind facility within the compact casing

        28kg lift weight

          Compact cupboard fit

            Front access to all components

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              Product Literature 

              Installation and Service Manuals

              Installation and Service Manuals

              Product Documentation

              No documentation available.

              User Guides

              User Guides

              Product Documentation

              No documentation available.

              Energy Labels

              Energy Labels

              Product Documentation

              No documentation available.

              Solutions Brochure

              Sheet Title

              Product Documentation

              No documentation available.

              Main Eco Compact System Boiler Dimensions - wall hung condensing gas Boiler Specification

              Dimensions

              A: Boiler width = 390mm

              B: Boiler height = 700mm

              C: Boiler depth = 285mm

              D: Side clearance = Side  5mm*

              E: Upper clearance = Upper 178mm*

              F:  Lower clearance = Lower 200mm*

              G: Front clearance = Front 5mm*

               

               *450mm for servicing 

              Technical Specification

              Main Eco Compact SystemUnitsMain Eco Compact System 15kWMain Eco Compact System 18kW
              Sales code (boiler only)77146057714606
              Controls
              Reset switchYesYes
              User adjustable CH temperatureYesYes
              LED operating status displayYesYes
              Gas
              Natural GasYesYes
              Nominal inlet supply pressurembar2020
              Maximum gas ratem3/hr1.641.96
              Heat input central heating (CH)kW max gross (QnHs)17.1620.60
              kW min gross (QnHs)5.155.15
              Heat output CH non-condensingkW max (Pn)15.0018.00
              kW min (Pn)4.504.50
              Heat output CH condensingkW max (Pnc)16.219.4
              kW min (Pnc)4.94.9
              ErP product information
              NOxclass66
              Sound power level, indoorsLWA dB4951
              Seasonal space heating energy efficiency%9393
              Electrical
              Electrical supplyVolts/Hz230/50230/50
              Permanent live requiredYesYes
              Switched liveYesYes
              Power consumptionWatts4656
              External fuse ratingAmps33
              Internal fuse ratingF2HA250VF2HA250V
              Boiler IP rating (electrical protection)Approval categoryIPX5DIPX5D
              Integral ‘boiler only’ frost thermostatYesYes
              Pump overrunYesYes
              Mechanical
              Temporary filling loop – optional (248221)
              Multifit Pre-Plumb jig (7682545)YesYes
              Isolating valvesYesYes
              Gas supply connectionmm2222
              Central heating connectionsmm2222
              Condensate drain connectionmm21.521.5
              Safety discharge connectionmm1515
              Hydraulic
              Safety discharge pressurebar33
              Integral automatic bypassYesYes
              Integral expansion vessellitres77
              Maximum capacity of CH systemlitres100100
              24hr pump exerciseYesYes
              Pump overrunYesYes
              Concentric flue systems
              Concentric flue diametermm60/10060/100
              Standard horizontal flue kit length (ø 60/100)mm685685
              Maximum equivalent vertical length (ø 60/100)m1010
              Equivalent length per 135° bendm0.500.50
              Equivalent length per 93° bendm11
              Weights
              Gross packaged boiler weightkg31.231.2
              Maximum installation lift weightkg28.0628.06

              Contact your ASM

              If you are a merchant or installer, your local Baxi representative is here to help.