What is a hot water cylinder?
Everything you need to know about hot water cylinders
Whether you're looking to upgrade your home's heating to a full Glow-worm heat pump system, or you're switching to a system or regular boiler, you'll need to know about hot water cylinders. In this blog we'll break down everything you need to know, before choosing the right one for you.
What do we mean by a hot water cylinder?
A domestic hot water cylinder (also known as a hot water tank or a hot water storage tank) is the part of your heating system that heats and stores hot water so it’s ready when you need it.
You can pair a cylinder with a boiler for dependable hot water, or with a heat pump if you want a more efficient, low-carbon setup.
A hot water cylinder stores heated water in a well-insulated tank. It works together with your main heat source — a boiler, a heat pump or an immersion heater.
Cold water enters the bottom of the cylinder. The heat source then warms this water through a heat exchanger inside the tank, typically a coil. As the water heats up, it rises to the top of the cylinder, where it is stored as readily available hot water.
Why do you need a hot water cylinder?
A full system from Glow-worm
Introducing the Hydracyl Cylinder
Glow-worm’s HydraCyl high recovery hot water cylinder is designed to work in harmony with heat pumps and system boilers to provide reliable hot water.
Available in four capacities (150l, 175l, 210l and 250l), they are designed to suit most house type and size. If you’re looking to upgrade your home’s heating system from a combi boiler to a heat pump, the HydraCyl offers flexible sitting options and can be installed in the garage, airing cupboard or utility room.
A complete heat pump system
The GeniaAir air source heat pump is compact, versatile, and ready to make your home feel just right. Whether you’re living in a new build or an older home, its space-saving design and reliable performance make it perfect for almost any property.
MiPro Sense
MiGo Link
GeniaAir
HydraCyl
Boilers built for every home
At Glow-worm, we’re all about making home heating simple, efficient, and built around you. See what is included in a full boiler system that'll fit effortlessly into your lifestyle.
MiGo Link
MiPro Sense
Energy System Boiler
Seems like a good fit for your home?
Discover our Glow-worm HydraCyl hot water cylinder
Frequently Asked Questions
You ask, we answer