The two most popular baptistry heaters found in churches nowadays are Immersion type and Circulation type. But each type has its pros and cons. The subsequent article shows you analysis between the two types, in order that consumers may go with a suitable one because of their demand:  
 
Type 1: Immersion heater: 
 
An immersion heater is normally designed with the shape much like a T or I letter. This is because of the heater part created from stainless steel which is in control of providing extreme heat for water around it. These devices works on the following idea: When plugged in 120 or 240 Voltage electricity, the steel part becomes hotter, making water around it hotter too. This water then flow upward, and is replaced by other cold inflow. The method keeps turning around and around before whole tank warms enough for people to soak themselves with it with ease and comfort. 
 
Pros: Obviously this revolutionary product is the most economical among many types of heaters with relatively cheap price. Moreover, it has great convenience because of the small size, light weight, and can be carried around to match with almost any size water tanks. Besides, an immersion heater doesn’t require user to generate any change or fix with all the tank.  
 
Cons: The greatest drawback of this device is it requires a quite long period of time to complete heating up the entire tank. Like an incandescent bulb, the mechanism of heating the steel heater, portable baptistry heater and therefore the heat coming into water…takes a number of gradual steps.  
 
Another weak spot of this device is that usually water temperature may not stay in different parts of the tank. These parts near the heater may become too hot, while further parts are nevertheless cold. This impacts straight away to people who make Baptism in the pool. Some people may find the water overly heated, plus some others may still must endure cold water. 
 
Type 2: Circulation heater 
 
A Circulation heater is later designed so it has many more technology advancements than an immersion heater. 
 
Pros: The steadiness and convenience are greatest good points of a circulation heater. User can control the water temperature at the level they want. baptistry heaters is also very quiet while running, which supplies users with high relaxation. The continual inflow and outflow of water make the water always fresh and warm. 
 
Cons: Being a circulation heater requires stable base to function, it is often permanently installed in to a pool. Therefore, each circulation heater can only be used in a tank and is not portable. This could be troublesome in case there are many tanks used but users don’t want to spend too much on investing in a heater for each tank. 
 
One more thing people need to consider is its price. Normally a circulation heater is 1.5 -2 times higher priced than an immersion heater. That’s not mentioning which you still have to pay for installing fee. A fantastic brand circulation heater could be listed up to 700-800 USD.