Hot Water Cylinders
Wave cylinders and stores have been developed to the highest specification, as you would expect from any Grant product and have powerful mains-pressure performance, with exceptionally high hot water flow rates, whilst the thermal stores have been specifically designed to enable complementary technologies to be easily combined. These are ideal for the typical Eco-friendly home, with a need for a reliable, energy efficient, hot water supply.
The range is designed to be coupled with almost any household hot water system from oil and gas boilers to electric heating, air source heat pumps and even solar thermal.
Grant Heat Pump Cylinders– Unvented indirect main pressure models for either Grant Aerona Air Source Heat Pumps or combining ASHP with solar thermal systems. Sizes range from 125-400 litres.
Grant DuoWave Cylinders – Unvented hot water cylinders direct with solar single coil and indirect solar twin-coil models for renewable applications. Sizes range from 170-500 litres.
Grant DuoWave Plus Cylinders – Open-vented or unvented hot water cylinders indirect triple-coil mains pressure models for combining solid fuel, biomass, gas, electric or oil-fired boilers and solar thermal systems. Available in a 300 litre version only.
Grant ThermaWave Stores – Open vented and sealed system thermal stores for combining multiple heat sources in a variety of configurations. Available in 250, 300, 400 and 500 litre versions.
Grant DuoWave, DuoWave Plus, Heat Pump cylinders and ThermaWave stores have sizes ranging between 125 and 500 litres. These extremely efficient appliances have been designed to be coupled with almost any household hot water system from oil and gas boilers to electric heating, air source heat pumps and even solar thermal.
Hot water cylinder production and control
Models incorporating internal coils are constructed from 20mm or 25mm corrugated stainless steel tube, giving maximum heat transfer, high efficiency and quick recovery. Grant Wave hot water cylinders and thermal stores are pressure tested to a full 12 bar.
All cylinders are manufactured in accordance with BS EN 12897 the specification for unvented hot water storage vessels. They all comply with Building Regulations G3 and Water Regulations. Hot water cylinder performance complies with the requirements BS6700, BS1566 and BS7206 and meets the NHBC criteria.
All cylinders are fully integrated within the Code of Practice for the installation and commissioning of central heating systems – Benchmark. The aim of the scheme is to advance professionalism of the heating industry and increase levels of customer satisfaction.