changing heating programmer?
can I fix my internal flue hood on Thorn Olympic 15/60?
what boiler would i replace my thorn 44/54 with?
thorn apollo boiler no gas coming through ?
How do I light it?
how can i fix my thorn M44/54 gas boiler?
Thorn apollo 15/30B boiler?
Soot from Harcal 430 Boiler?
Main Medway Automatic water heater diaphragm?
should I change my Thorn boiler?
We have a Thorn M gas boilder which is years old. Would it be safe to inst?
my m56/76b thorn is noisy what is wrong?