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Radiant Boilers

Discover premium Radiant boiler models with exceptional efficiency ratings. Find the perfect heating solution available through the ECO4 free boiler scheme.

67+

Boiler Models

A+

Efficiency Rating

FREE

Installation

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Radiant Collection

Premium Boiler Models

Discover Radiant's complete range of high-efficiency boilers, organized by type for easy comparison

Manufacturers

A J Wells and Sons

A O Smith

ACV

Alde

Alpha

Aquaflame

ARCA

Ariston

ATAG

Atlantic 2000

Atlantic Boilers

Atmos

Baxi

Baxi Heating

Baxi Potterton

Beeston

Benson Heating

Biasi

Boulter

Boxer

British / Scottish Gas

British Gas

British Gas/Scottish Gas

Broag Remeha

Buderus

Burco Maxol

Caradon Ideal

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

EHC

Elco

ELCO Klockner Heiztechnik

Eurocal

Europa

EUROTERM

Evo

Express

Fagor Electrodomesticos S.Coop

Fer

Fer Industrie

Ferroli

Firebird

Firebird Enviromax

Fonderie Sime

Fondital

Fontecal

GAH Heating Products

GEM

Geminox

Gerkros

Gledhill

Glotec

Glow-worm

Grandee

Grant

Halstead

Heating World Group

Heatline

HEB Boilers

Hepworth Heating

Hermann Srl

Hoval

HRM

HRM Boilers

Husqvarna

Hyrdoline

i-mini

ICI Caldaie

icon Heating

Ideal

Ikon

Intergas

iQE

IRSAP

Itho Images bv

Jaguar

Johnson & Starley

Keston

Kidd VHE

Lamborghini

Lamborghini Caloreclima

Main

Malvern

Maxol

Merlin

MHS Boilers

Mikrofill

Mistral

Mistral Boilers

Morco

Motan

Myson Combustion Products

Navien

Nefit Buderus Ltd

Nova Florida

NST

Oceanspa

Optia

Parkray

Perrymatics

Potterton

Potterton International Heating

Potterton Myson

Potterton Myson Heating

Powermatic

Powermax

Pro

Protherm

Quantum

R H Ingham

Radiant

Ravenheat

Remeha

Rhino Savannah

Rinnai UK

ROC

Rotex

Sabre

Sarigas

Saturn

Saunier Duval

Scottish Gas

Servowarm

Sile SpA

sime

Sime Heating Products (UK)

Solarcombi

Strebel

Termet

The White Boiler Company

Thermeco

Thorn EMI Heating

Trianco

Trisave

Turco

Turkington Engineering

Unical

Vaillant

Viadrus

Viessmann

Vokera

Vokèra BY RIELLO

Warmflow

Warmworld

Wickes

Wolf

Worcester

Yorkpark

Other Boilers

Baxi Megaflo 18 System IE ErP

Baxi•88.7%

Firebird Enviromax Kitchen C26kW

Firebird•91.8%

Baxi 630 Combi

Baxi•89.0%

Boulter Buderus 600/11R

Boulter•89.3%

Baxi MainEco Combi 35

Baxi•89.0%

Boulter Classic 95/130 System

Boulter•85.5%

Quick Actions

Efficiency Calculator Check Eligibility

Conventional Boilers

21 premium models available

High Efficiency

Fuel Type

Gas

Power Output

17.7 - 17.7

Method

Condensing

Fuel Type

Gas

Power Output

17.7 - 17.7

Method

Condensing

Fuel Type

Gas

Power Output

33.42 - 33.42

Method

Condensing

Fuel Type

Gas

Power Output

33.42 - 33.42

Method

Condensing

View Full Details

ECO4 Eligible

Radiant Radiant RK 50

Fuel Type

Gas

Power Output

54.47 - 54.47

Method

Condensing

Fuel Type

Gas

Power Output

29.43 - 29.43

Method

Condensing

Fuel Type

Gas

Power Output

29.43 - 29.43

Method

Condensing

Fuel Type

Gas

Power Output

26.67 - 26.67

Method

Condensing

View Full Details

ECO4 Eligible

Radiant B-condense RH 28

Fuel Type

Gas

Power Output

27.47 - 27.47

Method

Condensing

Fuel Type

Gas

Power Output

25.51 - 25.51

Method

Condensing

Fuel Type

Gas

Power Output

25.51 - 25.51

Method

Condensing

Fuel Type

Gas

Power Output

29.01 - 29.01

Method

Condensing

Fuel Type

Gas

Power Output

29.01 - 29.01

Method

Condensing

Fuel Type

Gas

Power Output

32.50 - 32.50

Method

Condensing

Fuel Type

Gas

Power Output

32.50 - 32.50

Method

Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

31.90 - 31.90

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

29.80 - 29.80

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

29.8 - 29.8

Method

Non-Condensing

View Full Details

ECO4 Eligible

Combi Boilers

46 premium models available

High Efficiency

Fuel Type

Gas

Power Output

17.7 - 17.7

Method

Condensing

Fuel Type

Gas

Power Output

33.42 - 33.42

Method

Condensing

Fuel Type

Gas

Power Output

29.43 - 29.43

Method

Condensing

Fuel Type

Gas

Power Output

17.7 - 17.7

Method

Condensing

Fuel Type

Gas

Power Output

33.42 - 33.42

Method

Condensing

Fuel Type

Gas

Power Output

26.67 - 26.67

Method

Condensing

Fuel Type

Gas

Power Output

24.60 - 24.60

Method

Condensing

Fuel Type

Gas

Power Output

29.43 - 29.43

Method

Condensing

Fuel Type

Gas

Power Output

17.7 - 17.7

Method

Condensing

Fuel Type

Gas

Power Output

26.67 - 26.67

Method

Condensing

Fuel Type

Gas

Power Output

17.7 - 17.7

Method

Condensing

Fuel Type

Gas

Power Output

33.42 - 33.42

Method

Condensing

Fuel Type

Gas

Power Output

29.43 - 29.43

Method

Condensing

Fuel Type

Gas

Power Output

24.60 - 24.60

Method

Condensing

Fuel Type

Gas

Power Output

26.67 - 26.67

Method

Condensing

View Full Details

ECO4 Eligible

Radiant B-Condense RHA 28/100

Fuel Type

Gas

Power Output

27.47 - 27.47

Method

Condensing

Fuel Type

Gas

Power Output

25.51 - 25.51

Method

Condensing

Fuel Type

Gas

Power Output

29.01 - 29.01

Method

Condensing

Fuel Type

Gas

Power Output

32.50 - 32.50

Method

Condensing

View Full Details

ECO4 Eligible

Radiant B-Condense RHA 28

Fuel Type

Gas

Power Output

27.47 - 27.47

Method

Condensing

Fuel Type

Gas

Power Output

25.51 - 25.51

Method

Condensing

Fuel Type

Gas

Power Output

29.01 - 29.01

Method

Condensing

Fuel Type

Gas

Power Output

32.50 - 32.50

Method

Condensing

View Full Details

ECO4 Eligible

Radiant B-condense RHR 28

Fuel Type

Gas

Power Output

27.47 - 27.47

Method

Condensing

Fuel Type

Gas

Power Output

25.51 - 25.51

Method

Condensing

Fuel Type

Gas

Power Output

29.01 - 29.01

Method

Condensing

Fuel Type

Gas

Power Output

32.50 - 32.50

Method

Condensing

View Full Details

ECO4 Eligible

Radiant RBA CS 30/100

Fuel Type

Gas

Power Output

31.90 - 31.90

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

31.90 - 31.90

Method

Non-Condensing

Fuel Type

Gas

Power Output

31.90 - 31.90

Method

Non-Condensing

View Full Details

ECO4 Eligible

Radiant RMAS 21 E NOx

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

31.90 - 31.90

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

View Full Details

ECO4 Eligible

Radiant RBS 20 E Midy

Fuel Type

Gas

Power Output

26.60 - 26.60

Method

Non-Condensing

View Full Details

ECO4 Eligible

Radiant RSF 24 E Slim

Fuel Type

Gas

Power Output

29.80 - 29.80

Method

Non-Condensing

Fuel Type

Gas

Power Output

23.76 - 23.76

Method

Non-Condensing

View Full Details

ECO4 Eligible

Radiant Radiant RBS 24

Fuel Type

Gas

Power Output

23.45 - 23.45

Method

Non-Condensing

Fuel Type

Gas

Power Output

29.8 - 29.8

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

29.8 - 29.8

Method

Non-Condensing

Fuel Type

Gas

Power Output

29.8 - 29.8

Method

Non-Condensing

Fuel Type

Gas

Power Output

29.8 - 29.8

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

Fuel Type

Gas

Power Output

26.6 - 26.6

Method

Non-Condensing

View Full Details

ECO4 Eligible

Smart Tools for Radiant

Specialized Tools & Calculators

Advanced tools designed specifically for Radiant boilers to help you make informed decisions

Radiant Calculator

Calculate potential savings with Radiant boilers, including CO₂ reduction and payback period analysis.

Brand-specific calculations

Real efficiency data

Accurate savings estimates

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Compare Radiant Models

Compare different Radiant boiler models side by side with detailed specifications and performance metrics.

Model-to-model comparison

Detailed specifications

Performance analysis

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A+ rated Radiant models

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