January 14, 2019

Top Up Mate Launched keep your customers warm this winter!

Top Up Mate

Automatic Boiler Pressurisation


There are approximately 10 million pressurised domestic heating systems in the UK, two thirds of which suffer from pressure loss. This leads to unexpected system shut downs and ultimately an unscheduled call-out. Top Up Mate automatically prevents the system from shutting down due to low pressure ending the need for call-outs which are unnecessary and costly to both the home owner and engineers.

Fully mechanical requiring no batteries or electrical supply, Top Up Mate is supplied pre-set & factory sealed meaning it can be easily installed, with no changes to existing pipework, in under 5 minutes making it suitable for DIY installation.

Top Up Mate is WRAS approved and manufactured in the UK by Flowflex Components LTD, who helped develop the product alongside the inventor Rob Foster.


Top Up Mate is a compact device that can be fitted retrospectively to all pressurised domestic heating systems. The unit automatically restores the optimum pressure for your heating system preventing boiler shut downs. Pre-set and factory sealed the Top Up Mate is supplied ready to install to your system. Top Up Mate, which requires two filling loops, connects the mains cold water supply and the central heating return pipe.


Once installed Top Up Mate requires no operating maintenance. When the pressure drops to 0.5 bar the Top Up Mate will gently top up the heating system and automatically restore the correct operating pressure. Water regulations in some regions advise that the mains supply hose must be disconnected when the Top Up Mate is not in use.

Other Features

As well as restoring the correct operating pressure for pressurised domestic heating systems Top Up Mate has several other useful features:

Flood Protection

When connected and operating Top Up Mate will automatically isolate the mains inlet water flow if a major leak is detected.

Bleeding Radiators

When connected and operating Top Up Mate allows you to bleed every radiator in your house without disrupting the operating pressure of the heating system. As you bleed the radiators Top Up Mate will gently refill the system it also means there is no chance of over filling the system to a dangerously high pressure.