Premium UK Manufacturer

Thorn EMI Heating Boilers

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

100+

Boiler Models

A+

Efficiency Rating

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Thorn EMI Heating Collection

Premium Boiler Models

Discover Thorn EMI Heating'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

Aquaflame Quartz 160 B

Aquaflame•70.0%

ARCA PIXELfast 26 FCX

ARCA•88.7%

Biasi ADVANCE 35C

Biasi•88.6%

Firebird Enviromax Combi C26

Firebird•89.9%

Biasi ADVANCE 30S

Biasi•88.7%

Boulter Buderus 800-24T25/V

Boulter•88.9%

Quick Actions

Efficiency Calculator Check Eligibility

Conventional Boilers

99 premium models available

High Efficiency

Thorn EMI Heating Apollo 30/50s

Fuel Type

Gas

Power Output

8.8 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 30s

Fuel Type

Gas

Power Output

4.4 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 30si

Fuel Type

Gas

Power Output

4.4 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 40s

Fuel Type

Gas

Power Output

8.8 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 40si

Fuel Type

Gas

Power Output

8.8 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 50s

Fuel Type

Gas

Power Output

11.7 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 50si

Fuel Type

Gas

Power Output

11.7 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 60si

Fuel Type

Gas

Power Output

14.7 - 17.6

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 80si

Fuel Type

Gas

Power Output

17.6 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo Fanfare 15/30s

Fuel Type

Gas

Power Output

8.8 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo Fanfare 15/30si

Fuel Type

Gas

Power Output

8.8 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo Fanfare 30/50si

Fuel Type

Gas

Power Output

14.7 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo Fanfare 40si

Fuel Type

Gas

Power Output

11.7 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo Fanfare 50/65si

Fuel Type

Gas

Power Output

19.1 - 19.1

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo Fanfare 65/80si

Fuel Type

Gas

Power Output

23.4 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Orion 75si

Fuel Type

Gas

Power Output

21.9 - 21.9

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Orion Fanfare 30si

Fuel Type

Gas

Power Output

8.8 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Orion Fanfare 40si

Fuel Type

Gas

Power Output

11.7 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Orion Fanfare 50si

Fuel Type

Gas

Power Output

14.7 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Orion Fanfare 60si

Fuel Type

Gas

Power Output

17.6 - 17.6

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 15/30b

Fuel Type

Gas

Power Output

4.4 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 15/30c

Fuel Type

Gas

Power Output

4.4 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 30/50b

Fuel Type

Gas

Power Output

8.8 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 30b

Fuel Type

Gas

Power Output

4.4 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 30c

Fuel Type

Gas

Power Output

4.4 - 8.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 40b

Fuel Type

Gas

Power Output

8.8 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 40c

Fuel Type

Gas

Power Output

8.8 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 50/65b

Fuel Type

Gas

Power Output

19.1 - 19.1

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 50/65c

Fuel Type

Gas

Power Output

14.7 - 19.1

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 50/80b

Fuel Type

Gas

Power Output

23.4 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 50/80c

Fuel Type

Gas

Power Output

23.4 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 50b

Fuel Type

Gas

Power Output

11.7 - 14.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Apollo 50c

Fuel Type

Gas

Power Output

11.7 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 60b

Fuel Type

Gas

Power Output

14.7 - 17.6

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 60c

Fuel Type

Gas

Power Output

14.7 - 17.6

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 65/80b

Fuel Type

Gas

Power Output

23.4 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 65/80c

Fuel Type

Gas

Power Output

23.4 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 80b

Fuel Type

Gas

Power Output

17.6 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Apollo 80c

Fuel Type

Gas

Power Output

17.6 - 23.4

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Harcal 260

Fuel Type

Oil

Power Output

13.2 - 13.2

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 2 30/45deluxe

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 2 30/45e

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 2 30/45eplus

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 2 30/45s

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 2 30/45super

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45economy

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45elegant

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45epic

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45epictc

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45extratc

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45sable

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45snug

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45spectacular

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45superior

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 30/45supreme

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 45

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer 55

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer deluxe

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer elite

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer emodel

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer Mk2 30/45extra

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer smodel

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer spectaculardeluxe

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer spectaculars

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Housewarmer super

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating International 40deluxe

Fuel Type

Gas

Power Output

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 1000b

Fuel Type

Gas

Power Output

27 - 27

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 1000c

Fuel Type

Gas

Power Output

27.8 - 27.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 1500c

Fuel Type

Gas

Power Output

41.47 - 41.47

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 30/42b

Fuel Type

Gas

Power Output

8.8 - 12.3

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 30/42c

Fuel Type

Gas

Power Output

8.8 - 12.3

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 400b

Fuel Type

Gas

Power Output

8.8 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 400c

Fuel Type

Gas

Power Output

8.8 - 11.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 44/54b

Fuel Type

Gas

Power Output

12.9 - 15.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 44/54c

Fuel Type

Gas

Power Output

12.9 - 15.8

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 500b

Fuel Type

Gas

Power Output

11.7 - 14.7

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 500c

Fuel Type

Gas

Power Output

11.7 - 14.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Marathon 56/76b

Fuel Type

Gas

Power Output

21.1 - 21.1

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Marathon 56/76c

Fuel Type

Gas

Power Output

16.4 - 22.3

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 600b

Fuel Type

Gas

Power Output

14.7 - 17.6

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 600c

Fuel Type

Gas

Power Output

14.7 - 17.6

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 700b

Fuel Type

Gas

Power Output

17.6 - 20.5

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Marathon 700c

Fuel Type

Gas

Power Output

17.6 - 20.5

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Marathon 80/100b

Fuel Type

Gas

Power Output

23.4 - 29.3

Method

Non-Condensing

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ECO4 Eligible

Thorn EMI Heating Marathon 80/100c

Fuel Type

Gas

Power Output

23.4 - 29.3

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Marathon 800b

Fuel Type

Gas

Power Output

20.5 - 23.5

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Marathon 800c

Fuel Type

Gas

Power Output

20.5 - 23.5

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Orion 30b

Fuel Type

Gas

Power Output

8.8 - 8.8

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Orion 40b

Fuel Type

Gas

Power Output

11.7 - 11.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Orion 50b

Fuel Type

Gas

Power Output

14.7 - 14.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Orion 60b

Fuel Type

Gas

Power Output

17.6 - 17.6

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Thorn Harcal 200

Fuel Type

Oil

Power Output

10.9 - 10.9

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Thorn Harcal Havana

Fuel Type

Oil

Power Output

10.9 - 10.9

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Thorn Janitor ODY-3

Fuel Type

Oil

Power Output

17.6 - 22.0

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating Thorn Janitor OV-45

Fuel Type

Oil

Power Output

13.2 - 13.2

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating International m42bf

Fuel Type

Gas

Power Output

11.7 - 11.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating International m42cf

Fuel Type

Gas

Power Output

11.7 - 11.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating International m54bf

Fuel Type

Gas

Power Output

14.7 - 14.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Thorn EMI Heating International m54cf

Fuel Type

Gas

Power Output

14.7 - 14.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

Combi Boilers

1 premium model available

High Efficiency

Thorn EMI Heating Gemini wm

Fuel Type

Gas

Power Output

14.7 - 14.7

Method

Non-Condensing

View Full Details

ECO4 Eligible

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