Mastertherm Ltd

Mastertherm Ltd. are distributors for the Mastertherm range of Geothermal and air to water heatpumps ranging from 5KW to 350KW, including;

• water/water,
• brine/water,
• air/water,
• direct evaporation units.

A wide range of options are available including a choice of compressor type, electronic expansion valve, de-superheater, electric backup elements and a fully expandable electronic control system that enables the control of other heat sources e.g. solar, wood pellet, oil boiler and control of various heating circuits e.g. radiator and floor heating systems by the heatpump.


We also distribute the Itap Multifit range of fittings for multilayer pipe, which are simple to use, requiring no special tools, are totally reusable and can connect to any 1/2'' standard copper fitting and any BSP threaded fitting up to 1''.

• A range of easy to use professional pipe clamps and fixings to suit multilayer or copper pipe.
• All types and sizes of multi-energy cylinders and buffer tanks for combining various heat sources.
• Dallmer wetroom and shower gullys and channels suitable for all types of tiled and built in showers and wet rooms, easy to use with all waterproofing and tanking systems.
• A large range of plumbing heating and underfloor heating manifolds, valves, motorized valves and mixing valves, chromed brass fittings up to 1'', pressure reducing valves, and 40mm brass fittings for polyethylene pipe for geothermal ground loops.
• PEX/AL/PEX Multilayer pipe in both pre-insulated and un-insulated.

We have more than 30 years experience in heating and plumbing and our aim is to make plumbing as stress free as possible!