Whether you require Tips and Advice about radiators, plate heat exchangers or heating systems in general AEL have the technical expertise to provide guidance on your system design and which products are best suited to your application.
Should you not find the answer to your problem in our “Tips and Advice” articles and require any help feel free to contact our technical sales office.
Delivery Terms & Conditions
- AEL will contact you during the next working day to discuss a convenient delivery date of your order.
- Orders delivered by road transport are delivered to the nearest convenient hard standing position and the consignee is responsible for offloading.
- Standard delivery is between 9am and 5pm on weekdays only, prices for timed deliveries and weekend deliveries can be provided by our sales office upon request.
- Please note that missed deliveries can be rescheduled and are chargeable.
- We're open 9am to 5pm weekdays with Saturday collections possible by prior arrangement.
- Please note that Cast Iron Radiators are heavy so we advise that you double check the weight of your order and the maximum weight your vehicle can carry as AEL can accept no responsibility for the suitability of your vehicle.
How does a Central Heating system work
A central heating system is a continuous circuit of moving hot water leaving the boiler and passing through all the radiators in turn, and then back again to the boiler to pick up more heat.
The central heating water is permanently sealed inside the central heating system and the same water circulates continuously around your home every single day.
Here's how it works:
1. Natural gas enters your home to the boiler from a pipe in the street.
2. The boiler burns the gas and a flame heats up a heat exchanger that contains the water.
3. The heat energy from the gas is transferred to the water.
4. An electric pump pushes the heated water through the whole system including upstairs.
5. The water flows around the radiator system , entering at one side and leaving at the other. Because each radiator is giving off heat, the water is cooler when it leaves a radiator than it is when it enters.
6. After the water has passed through all the radiators it will have cooled down significantly and then returns to the boiler to pick up more heat.
7. A thermostat mounted in one room monitors the temperature and switches the boiler off when it's hot enough, switching the boiler back on again when the room gets too cold.
8. Waste gases from the boiler leave through a flue and disperse into atmosphere.