Heating · Energy · Sanitary
WTES supplies heating, energy and sanitary systems to installers, technical wholesalers and end users. Cylinders, vessels, pumps, pipes, fittings, valves, separators, design radiators, heat exchangers and fire protection. All matched to one another, so the installation does what you expect of it.
Heat pumps and air conditioning
You can also come to us directly for heat pumps and air conditioning. Our team of specialists advises on what suits your home, takes care of the complete installation and is your dedicated point of contact from quote to handover.
The range
The same structure as the printed catalogue. Every chapter carries the full technical documentation: dimensions, capacities, materials and standards.
01Cylinders, buffer tanks and expansion vessels: the heart of every heating system.
02Smart, frequency-controlled circulation pumps with permanent-magnet motor.
03From cast-iron threaded fittings to steel weld fittings, pipes and brass connectors.
04Valves, check valves, strainers and couplings from DN 8 to DN 600.
05Keep the system clean: air, dirt and magnetic separators.
06Heat as a design element: eight models, made to size and to colour.
07Compact plate heat exchangers with high efficiency.
08NFPA 20 · UL/FMFire pumps and booster sets built to international standards.
The system
Six stations, one supplier: every part of the installation comes from the same catalogue.
Transfer
MIT plate heat exchangers move heat between two circuits.
Buffering
WBF buffer tanks decouple the heat source from the system.
Storage
WBT and WBC cylinders keep hot water ready, up to 5,000 litres.
Distribution
REGEN pumps and pipework carry the heat around.
Emission
RADYAL design radiators release the heat into the room.
Hot water
KALDE chrome-plated brass covers the last metre to the tap.
Featured
Two kinds of question, one supplier
Installer & wholesale
From plant room to riser: the full distribution and valve programme, with the standards, sizes and pressure ratings alongside. Request a project quote or let us help with the selection.
Homeowner
A cylinder that keeps up with the whole household, a buffer tank that lets the heat pump run calmly, a radiator you would rather not hide. We supply through your installer and are glad to help you choose.
Product catalogue, 2026 edition
The catalogue holds the complete range: every dimension, every code, every capacity. So you know before installation exactly what you are fitting, and why it suits.
The WTES team works it through with you, for installers, wholesalers and end users.