Instant Water Heater

Thanks to the person who discovered that there could be something like instant water heaters. The reason? We all have been saved of the torture of taking a bath with cold water whenever the weather has been cold. Instant heaters have proved to be a boon for many of us living across the globe. Drastic weather changes and variations in the climate according to a region of the globe has made water heaters a necessity. What is more, they are a better option as far as environment is concerned, than traditional water heaters. Let's probe further!

Modus Operandi of Instant Water Heaters

There a different types of water heaters. The basic mechanism in electric heaters is something like this - there is sensor which controls the flow of water in the heater. Now, the automatically ignited burner will heat the water with the help of heat exchanger as required. When you turn the water tap off, the process of heating is stalled. You open the tap and there is hot water again! Voila! Of course you have to turn on the basic electric switch for the hot water. These are great space and electricity saviors as there is neither a storage tank nor does the water is kept hot even when it is not used by a power supply. There is another type in this, point of use water heaters. Just as the name suggests, these provide instant hot water on demand and as per use. However, the installation of these is in connection with a bigger water heater. The same thing goes for heaters with gas. They heat water only when required and are compact and smaller as compare to electric heaters. These type of heating systems come with a tank or are tankless.

There are a number of brands and manufacturers. Here is more on which ones are better, along with some reviews.

Reviews of Instant Water Heaters

The Stiebel-Eltron Tempra 20
A tankless water heater, there are claims that it can run even when the electricity is off. It is easier to install and pretty safe. However, installing this water heater may need you to revamp your circuit breaker box for handling the load needed to heat the water. A good and efficient option for small bungalows, which will have only one shower running at a time. Affordability and ease of installation give this water heater the brownie points.

Bosch AE125 PowerStar 4 GPM
This is yet another a good choice. It is electric and tankless - great for climates having annual groundwater temperature below 60º Fahrenheit. It provides 4 gallons of hot water per minute and has an average energy-efficiency rating of 94. In addition to that, it comes with a10-year limited warranty on heat exchanger and 1-year on parts.

RHEEM Instant Gas Water Heater
The Rheem Tankless Water Heater RTG53XN is an outdoor gas water heater where the showers start hot for as long as the shower is running. The system is smaller compared to normal tank water heaters and is energy efficient. Some of the salient features of this product are - 5.3 gpm at a 45ºF temperature rise, electronic ignition to increase efficiency, remote control thermostat, digital temperature display, built-in electric blower to force exhaust gas outside and a 3-year limited warranty on parts and 10 years on heat exchanger. In addition to this there are many other brands and model, it is up to you to decide which is the best gas water heater for you!

Prices range from around $150 to even $2,000, depending on the features and the brand and the capacity. It will also depend on whether they are gas or electric.

There are benefits of instant water heaters - energy efficiency, constant supply and multiple delivery points and a few more and also the great divide between tank vs tankless water heater! At the same time, there are the drawbacks, like limited supply, the point of installation and inspection and so on. So before you buy one, do give it a good thought!