GAS / LPG

You can see some examples of boilers here

 Worcester Bosch

7 years guarantee parts and labour                                                                                                                                            
                                            

Greenstar CDI Combination Boiler

Greenstar CDI Floor Standing Combination Boiler

Greenstar RI Conventional Boiler

BAXI

5 years guarantee
parts and labour

Baxi Duo-tec Combination Boiler

 Baxi Neta-tec Combination Boiler

Baxi Megaflo System Boiler

Potterton

Promax SL Conventional

Promax HE Store System

Gloworm

Vaillant