What Is Tema Heat Exchanger

The tema heat exchanger is a smalxl flat-plate type atmospheric section of the heating or cooling system used in houses. It works on the principle of natural convection, wherein air is heated by passing over a hot radiator and rises up to be replaced by cold air from outside. In the process, it transfers some of its energy to this cool air in the exchanger. The cool air is then supplied to various rooms in the building, making them comfortable even in hot surroundings.

The tema heat exchanger typically has an aluminium tank covered with wooden boards on the front and back sides for protection against dust and dirt. This tank contains water at room temperature, which flows slowly through the exchanger when the convection process is in action. Some of this warm water keeps the internal tank surface hot enough to prevent formation of frost when the outside temperature drops in winter season.

A tema heat exchanger can have either a single or double-door. A single door allows access to both sides through one opening, while with double doors, one side is used as the control panel. A double-door system allows for better insulation of the area around the exchanger (which passes through several rooms), thereby preventing heat loss.

The Basic Working Of Tema Heat Exchanger

There are three major components in a convection gas heater – an air blower, a heat exchanger and a gas burner. The air blower sucks in room air and pumps it through the heat exchanger where it is heated by the hot surface of the tank. This warmed air then rises up and is replaced by cool ambient air from outside (which enters through similar openings) causing a convection process. Some of this newly refrigerated air is again heated by the hot surface of the tank and returns to various rooms.

The gas burner, which is usually at the top in atmospheric convection heaters, makes the system complete by producing a flame to ignite incoming air just before it enters into the blower. The purified combustion gas is then pushed through an L-shaped pipe to the burner chamber. Here the gas is lit by an open flame. The heat produced by this combustion process heats up the whole of the convection heat exchanger (tank) and consequently heats up the room air again through convection.

The tema heat exchanger is fitted with a control panel, which is used for regulating the blower and the gas flow rate in the burner. The air inlet and outlet openings for both convection and cooling of air can be adjusted using this control panel, thereby changing the direction of airflow. With a single-door system, there is one opening at the front to let in or out warm fresh room air, thereby increasing or reducing the heat in the room. With a double-door system, the air only enters from outside through openings on top or bottom of the convection heater. In both cases, one door is used for controlling the airflow and regulating the temperature in a room.

The Main Components Of Tema Heat Exchanger

The gas burner has three major components: a burner nozzle, a regulator and the main jet. The regulator controls the amount of gas emerging from the nozzle. This is adjusted by rotating a circular screw on top of the regulator with a spanner to increase or decrease the flame size.

The main components in an atmospheric convection heater are: an air blower, a heat exchanger, the gas burner and its controls. The heat exchanger is heated by the hot surface of the tank. This unit heats up the room air again through convection. The main components in a temperate heat exchanger are: an aluminium tank (covered on both sides with wooden boards), water flow valves (with diaphragms), an air blower (with necessary controls), a water pump, copper tubing (for the heat exchanger) and all the necessary plumbing.

The Airflow In Tema Heat Exchanger

It is important to understand how convection works under different conditions to get the most out of your heater.

Convection Inside An Atmospheric Gas Heater

Air is drawn inside the heater (through an opening in front or below) by the blower. As this room air passes through the heat exchanger, it gets heated up and rises to be replaced by cool outside air which enters through openings in top or bottom of the convection heater. The air which enters in fresh quantities has all the necessary oxygen to support combustion in the gas burner. The purified combustion gas passes through an L-shaped pipe to the burner chamber where it is lit by an open flame.

The heat produced by this combustion process heats up the whole of the convection heat exchanger (tank) and consequently heats up the room air again through convection. Some of this newly heated air is again drawn in by the blower, which goes on repeating this cycle. Thus, with each rotation of the blower, some room air is evacuated and replaced by cool outside air through openings in top or bottom of the convection heaters.