What is the ideal temperature for hot water cylinder?
60-65ºC
A domestic hot water cylinder thermostat should be set at 60-65ºC. This is high enough to kill off harmful bacteria such as Legionella. If you set the thermostat much higher than this the water that comes out of the taps will be too hot and there’ll be a risk of scalding.
What is the water in a modern direct cylinder heated by?
electrical immersion heater/s
A modern Direct Cylinder is typically heated by electrical immersion heater/s located within the cylinder. Because the Immersion Heater is heating the water ‘directly’ within the cylinder it too is known as a ‘Direct Cylinder’.
What is a gravity fed water heater?
A gravity-fed heating system uses the force of gravity to circulate water in the heating system. Typically, such a heating system has a cold water tank in the loft or attic of the house, a boiler on the ground floor and a hot water cylinder somewhere between these two.
How does gravity fed cylinder control hot water?
That’s ‘cos it relies on gravity to circulate the hot water from the boiler to the cylinder – I’m guessing the cylinder is mounted higher than the boiler, and close to directly above it? And, yes, you are right in that a fully pumped system would be miles better – proper independent control over DHW and CH, and more effective.
What are the grades of gravity hot water cylinders?
Gravity hot water cylinders are available in three grades. The grades refer to the pressure of water they can withstand from the header tank (the pressure created by the height of the header tank above the cylinder). In simple terms, this translates to the gauge (thickness) of copper used in construction.
How tall is the boiler in a gravity fed cylinder?
Your current cylinder has 28mm heating coil fittings. That’s ‘cos it relies on gravity to circulate the hot water from the boiler to the cylinder – I’m guessing the cylinder is mounted higher than the boiler, and close to directly above it?
Is it possible to feed a gravity fed hot water system?
Your concern is simple, you want better flow rate at your hot water outlets. Two options, fit an unvented cylinder by a QUALIFIED INSTALLER as suggested, or fit a modern hot water booster pump such as a Stuart Turner.
