Complete technical details and performance specifications for the Main System 18 HE
A J Wells and Sons
A O Smith
ACV
Alde
Alpha
Aquaflame
ARCA
Ariston
ATAG
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Atmos
Baxi
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Chaffoteaux
Chaffoteaux et Maury
Charles Portway & Son
Claudio GR (Vokera)
Clyde
Coopra BV
Daikin
DD Heating
De Dietrich
De Dietrich Thermique
Dimplex
E.C.A.
Eco Hometec (UK)
Econoflame
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ELCO Klockner Heiztechnik
Eurocal
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Fagor Electrodomesticos S.Coop
Fer
Fer Industrie
Ferroli
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i
i-mini
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icon Heating
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Potterton Myson Heating
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Turco
Turkington Engineering
Unical
Vaillant
Viadrus
Viessmann
Vokera
Vokèra BY RIELLO
Warmflow
Warmworld
Wickes
Wolf
Worcester
Yorkpark
The Main System 18 HE delivers exceptional performance with a 86.7% efficiency rating, making it one of the most energy-efficient heating solutions available.
This Conventional boiler provides 18.0 - 18.0 (KW) of reliable heating power using Gas fuel for optimal performance.
Potential annual savings of £150-£300 compared to older, less efficient boilers, while reducing your carbon footprint.
Discover why the Main System 18 HE is the perfect heating solution for your home
86.7% efficiency rating delivers maximum energy savings and optimal performance
Save £150-£300 annually on energy bills compared to older, less efficient boilers
Trusted Main engineering with comprehensive warranty coverage
Built to last with modern condensing technology and premium components
Discover other high-efficiency boilers that might be perfect for your home
Advanced tools designed specifically for the Main System 18 HE to help you make informed decisions
Calculate specific savings with the Main System 18 HE, including CO₂ reduction and payback period analysis.
Compare the Main System 18 HE against other boiler models with detailed specifications and performance metrics.
Check if you qualify for a free Main System 18 HE replacement through the government ECO4 scheme.
The Main System 18 HE with its 86.7% efficiency rating is available at no cost through the government ECO4 scheme. Professional installation included with potential savings of £150-£300 annually.
✓ Government Approved ECO4 ✓ Main Authorized ✓ 86.7% Efficiency Rated ✓ Professional Installation
