What is an indirect hot water cylinder?

A calorifier, indirect fired hot water cylinder or tank is a water storage unit with a coil that is heated by an external heat source. This external source – usually a boiler or renewable energy source – heats liquid (water or solar liquid) that passes through the coil. Water is heated as it passes over the coil.

What is the difference between a direct and indirect unvented hot water cylinder?

A ‘direct’ cylinder is heated via an electric immersion and does not work with gas, oil or heat pump systems. An ‘indirect’ cylinder has coil running through the cylinder. The heated coil imparts its heat onto the fresh (potable) water in the tank that is used for washing or showering.

What is an indirect vented cylinder?

Indirect Vented Cylinders A heat exchanger within the cylinder transfers heat from the external appliance (i.e. boiler) to the water in the cylinder. This water is then heated and is distributed to the hot water outlets (i.e. taps, showers) as part of a gravity led system.

What size hot water system do I need for a family of 3?

Electric hot water size guide

Household size	Electric storage hot water system size
1 – 3 people	125 litre
3 – 5 people	160 litre
4 – 6 people	250 litre
6 – 8 people	315 litre

Do I need a direct or indirect cylinder?

You need a DIRECT hot water cylinder if you want the cylinder to heat the water itself, and… You need an INDIRECT hot water cylinder if you have a separate boiler (such as a gas boiler or an oil boiler) and will be using that to heat the water.

How does an indirect water cylinder work?

An indirectly heated system (which is the most common) gets heat from an external source, often in the form of a gas boiler or solar panels. The hot water then travels through a copper coil in the hot water cylinder, heating the surrounding water without actually mixing with it.

What size hot water system do I need for a family of 2?

Solar hot water systems

Number of people	Hot water required (Litres per day)	Approximate tank size
1-2	120	180
3-4	200	300
5-6	300	440

How do you size a hot water system?

As a rough guide, estimate for around 30-40L per person in the household for a gas tank storage system and 55-60L for electric. You are the best judge of how much hot water your house needs, and a good system is an important investment so don’t feel pressured into a rush decision.

How big should an indirect water heater be?

Recently I received a number of questions, like the following one, from readers about sizing indirect water heaters: I am considering an indirect and looking at the Triangle Tube Smart 50 or 40. The boiler I am considering is also Triangle Tube Prestige 110 at 110,000 Btuh. The next size, Prestige, is 160,000 Btuh or more.

How big of a hot water cylinder do I Need?

Our general guideline for the sizing of domestic hot water cylinders is therefore as follows: Installation. Indirect Hot Water Cylinders. Direct Hot Water Cylinders. 1 Bedroom + Bath/Shower. 75/120. 120/150. 2 Bedroom + Bath/Shower.

How to calculate the size of a water cylinder?

To calculate the size of water cylinder, please choose from the following options: 1. House Type: SelectFlat1/2 Bed (1 bath/shower)3 Bed (1 bath/shower)4 Bed (1 bath/shower)4/5 Bed (2baths/showers)4/6 Bed (3baths/showers)5/6 Bed (3baths/showers) 2. Select the Heating Type Indirect Direct

How big is a McDonald’s hot water cylinder?

Hot Water Cylinder Sizes Installation Indirect Hot Water Cylinders Direct Hot Water Cylinders 1 Bedroom + Bath/Shower 75/120 120/150 2 Bedroom + Bath/Shower 150 180 3 Bedroom + 2 Baths/Shower 180 210 4 Bedroom + 2 Baths/Shower 210/250 250/300

What is an indirect hot water cylinder? A calorifier, indirect fired hot water cylinder or tank is a water storage unit with a coil that is heated by an external heat source. This external source – usually a boiler or renewable energy source – heats liquid (water or solar liquid) that passes through the coil.…