I have a 12kW Aztec water heater for my central heating...

Russell Liversidge from TR Engineering

Is it compulsory to fit a sampling chamber to the outlet...

Chris Hagain, technical support engineer at Wavin (on behalf of Steve Harris):

What is the minimum recommended size for a cold water storage...

Martyn Bridges - Director of Marketing & Technical Support at Worcester, Bosch Group

Problematic gate valves

Steve Harris - Technical Services Engineer at Wavin

What taxable relief is available for work to clear a dump...

Graham Booth - Senior Accountant at Easy Accountancy

Why complicate the fixture and fittings issue with an in-roof kit...

Martyn Bridges - Director of Marketing & Technical Support at Worcester, Bosch Group

Are there many non unvented systems on the market? And why...

Martyn Bridges - Director of Marketing & Technical Support at Worcester, Bosch Group

Can underfloor heating (UFH) be connected to an existing sealed radiator...

Martyn Bridges, Director of Marketing and Technical Support at Worcester, Bosch Group

My gravity fed hot water system produces only a trickle of...

Martyn Bridges, director of marketing and technical support at Worcester, Bosch Group