Homeowners: Before you call someone this book has many useful tips to test or check many faults.
Installers: Don’t go to repair boilers without this manual, easy flow charts, how to TEST parts correctly don’t just guess or rely on social media and STOP phoning START learning.
Take this book with you on every job and learn the easy way don’t forget the APPs links below.
Music: Bensound - Cute
BOOKS: [ Ссылка ]
Google Play download here : [ Ссылка ]
Apple iOS download here: [ Ссылка ]
